Updated on 2025/10/23

写真a

 
UEMORI Takeshi
 
Organization
Faculty of Environmental, Life, Natural Science and Technology Associate Professor
Position
Associate Professor
External link

Degree

  • 博士(工学) ( 広島大学 )

Research Interests

  • Constitutive equation, Deformation, Numerical analysis, Mechanics of plasticity

Research Areas

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Manufacturing and production engineering

Education

  • Hiroshima University   工学研究科   材料工学

    - 2001

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    Country： Japan

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  • Hiroshima University    

    - 2001

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Research History

  • Okayama University   The Graduate School of Natural Science and Technology   Associate Professor

    2014.12

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  • Kinki University   Faculty of Engineering, Department of Mechanical Engineering   Associate Professor

    2012.4 - 2014.11

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  • Kinki University   Faculty of Engineering, Department of Mechanical Engineering   Lecturer

    2008.4 - 2012.3

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  • Hiroshima University   Graduate School of Engineering   Assistant Professor

    2005.4 - 2008.3

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  • - 広島大学助手

    2001

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  • - Hiroshima University, Research Assistant

    2001

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Professional Memberships

  • THE JAPAN SOCIETY OF MECHANICAL ENGINEERS

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  • THE IRON AND STEEL INSTITUTE OF JAPAN

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  • THE SOCIETY OF MATERIALS SCIENCE, JAPAN

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  • THE JAPAN INSTITUTE OF LIGHT METALS

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  • THE JAPAN SOCIETY FOR TECHNOLOGY OF PLASTICITY

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  • THE ADHESION SOCIETY OF JAPAN

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Committee Memberships

  • 日本機械学会   材力部門 運営委員会  

    2021.4   

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    Committee type：Academic society

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  • 日本機械学会   hcp金属の機能・性能評価に関する研究分科会  

    2020.4   

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    Committee type：Academic society

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  • 日本軽金属学会   中・高温域におけるアルミニウム合金の機械的特性に関する研究部会  

    2018.4   

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    Committee type：Academic society

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  • 日本塑性加工学会中国四国支部   監事  

    2018.4   

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    Committee type：Academic society

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Papers

  • Crystal plastic homogenization finite element analysis of Ti-6242 alloy subjected to in-plane reverse loading

    Takeshi UEMORI, Naoya TADA, Junji SAKAMOTO

    Mechanical Engineering Journal   12 ( 2 )   24 - 00340   2025

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    Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Mechanical Engineers  

    DOI： 10.1299/mej.24-00340

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  • Effect of artificial defect on tensile properties of thin titanium alloy wire Reviewed

    Junji SAKAMOTO, Naoya TADA, Takeshi UEMORI, Koyo OISHI

    11 ( 6 )   24-00129   2024.12

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)  

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  • Fracture Morphology of Ti-6Al-4V Thin Wire Under Load-Controlled Fatigue Test

    72 ( 3 )   39 - 43   2024.12

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    Language：Japanese   Publishing type：Research paper (scientific journal)  

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  • Crystal Grain Rotation during Tensile Test of Polycrystalline Pure Titanium Thin Sheet Based on Surface Height and Crystal Orientation Reviewed

    Naoya Tada, Hiroaki Ohashi, Takeshi Uemori, Junji Sakamoto

    Journal of Physics: Conference Series   2892   012002   2024.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1088/1742-6596/2892/1/012002

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  • Crystal plasticity analysis of fatigue crack initiation site considering crystallographic orientation in Ti–22V–4Al alloy

    Jinta Arakawa, Koki Hirazumi, Takeshi Uemori, Yoshito Takemoto

    23   2024.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.rineng.2024.102405

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  • Method for Predicting Crack Size Using Amplitude Change in Titanium Alloy under Bending Vibration Reviewed

    J. Sakamoto, N. Tada, T. Uemori

    472   2024.9

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  • Elucidation of small fatigue crack initiation and propagation behavior on polycrystal Ti-22V-4Al Reviewed

    Jinta Arakawa, Koki Hirazumi, Takeshi Uemori, Yoshito Takemoto

    Procedia Structural Integrity   66   38 - 48   2024.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.prostr.2024.11.053.

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  • Vibration change and crack propagation under bending vibration of aluminum alloy

    SAKAMOTO Junji, TADA Naoya, UEMORI Takeshi

    Transactions of the JSME (in Japanese)   90 ( 930 )   23-00246 - 23-00246   2024

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    In this study, aluminum alloy specimens were subjected to bending vibrations at different vibration frequencies near the first resonance frequency in order to investigate the vibration changes associated with crack propagation. Bending displacement, crack length, and strains at several parts of the specimen were measured during the bending vibration tests. As a result, it was confirmed that when the vibration frequency was lower than the initial first resonance frequency, the vibration amplitude increased with the crack length, and when the vibration frequency was higher than the initial first resonance frequency, the vibration amplitude decreased with an increase in the crack length. This is due to the decrease in the first resonance frequency due to the material damage. The relationship between the change of bending displacement amplitude and the crack length during vibration of the specimens can be organized using the slope (dΔεx2/dfv) of the relationship between the strain range and the vibration frequency for the undamaged specimen. This might be due to the strong correlation between the decrease in the first resonance frequency and the crack size when the crack initiation location is limited in the material. Moreover, based on the relationship between the change of bending displacement amplitude and the crack length, the stress intensity factor range (ΔK) was estimated by incorporating the load change into the crack length. By using the modified ΔK, the crack growth rate during bending vibration could be predicted.

    DOI： 10.1299/transjsme.23-00246

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  • Relationship between cyclic tensile properties of cellulose nanofiber reinforced natural rubber and volume fraction of bound rubber obtained from swelling tests

    OKUI Kento, TADA Naoya, UEMORI Takeshi, SAKAMOTO Junji, SAKAKIBARA Keita

    Transactions of the JSME (in Japanese)   90 ( 932 )   24-00008 - 24-00008   2024

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    In recent years, environmental concerns have led to a demand for sustainable materials, and natural rubber (NR) reinforced with cellulose nanofibers (CNFs) has been attracting attention as one such material. When CNFs are added to NR, the elastic modulus is greatly improved. This is considered to be caused by deformation constraint of NR by reinforcing CNFs. On the other hand, it is known that there exists a region around reinforcing fibers where the rubber is tightly connected to the surface of fibers, which is called bound rubber. The volume fraction of the bound rubber is usually measured by swelling tests using organic solvent. In this paper, we focused on the relationship between the tensile properties of NR reinforced with CNFs and the volume fraction of bound rubber. Firstly, cyclic tensile tests were performed using plate specimens of CNF-reinforced NR and the effect of reinforcing CNFs on the tensile properties of CNF-reinforced NR and their change with loading cycles were investigated. Then, the swelling tests were conducted for similar specimens and the volume fraction of the bound rubber was evaluated. It was found from a series of experimental results that tensile deformation resistance of NR increased largely by adding 5 phr (4.8 mass%, 3.2 vol.%) of CNFs but that this increase decreased from the second loading cycle. Moreover, a clear relationship was found between the tensile deformation resistance of CNF-reinforced NR and the volume fraction of bound rubber. These results suggest that the tensile deformation resistance of CNF-reinforced NR can be evaluated by swelling tests.

    DOI： 10.1299/transjsme.24-00008

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  • Prediction of active slip system for commercially pure titanium sheet by crystal plasticity finite element analysis Reviewed

    Extended abstract of The Advanced Technology in Experimental Mechanics and International DIC Society Joint Conference 2023 (ATEM-iDICs '23)   19-G05   2023.10

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    Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)  

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  • Prediction of slip activity of crystal grains around semi-circular and semi-elliptical notches in thin-sheet specimens of pure titanium using formulated macroscopic stress distribution and crystal orientation

    Naoya Tada, Takeshi Uemori, Junji Sakamoto

    Engineering Failure Analysis   107623 - 107623   2023.9

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.engfailanal.2023.107623

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  • Effect of Surface Roughness and Oxidation Treatment on Joint Strength between Aluminum Alloy and High-Density Polyethylene Reviewed

    2023.8

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  • Tensile properties and slip deformation behavior of pure titanium thin wire with a small diameter-to-grain-size ratio

    Junji Sakamoto, Naoya Tada, Takeshi Uemori

    Materials Science and Engineering A   863   2023.1

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.msea.2022.144532

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  • Slip Activity of Crystal Grains around Notch in Thin Sheet Specimen of Pure Titanium

    Naoya Tada, Takeshi Uemori, Junji Sakamoto

    Books of abstracts, 17th Asia-Pacific Conference on Fracture and Strength and 13th Conference on Structural Integrity and Failure   19 - 19   2022.12

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  • 複素数階微分法の純チタン板材の結晶塑性解析への適用 Reviewed

    上森武, 多田直哉, 坂本惇司

    チタン   70 ( 2 )   158 - 163   2022.4

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    Language：Japanese   Publishing type：Research paper (scientific journal)  

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  • Effect of resin lamination on tensile strength characteristics of SUS304 stainless steel thin film Reviewed

    Junji Sakamoto, Naoya Tada, Takeshi Uemori

    International Journal of Advanced Manufacturing Technology   116 ( 3-4 )   1081 - 1088   2021.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/s00170-021-07510-8

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  • Prediction of the fracture location by tensile tests of gray cast iron based on the dimensional changes of graphite flakes Reviewed

    Naoya Tada, Takeshi Uemori, Junji Sakamoto

    Journal of Pressure Vessel Technology, Transactions of the ASME   143 ( 2 )   2021.4

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1115/1.4048063

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  • Effect of Mechanical Surface Treatment and Post-treatment Polishing on Tensile Strength and Fatigue Life of High-speed Tool Steel Reviewed

    N.Karunathilaka, N.Tada, T.Uemori, J.Sakamoto, R.Hanamitsu, M.Fujii, Y.Omiya, M.Kawano

    2 ( 1 )   35 - 60   2021

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  • Finite Element Study of the Effect of Internal Cracks on Surface Profile Change due to Low Loading of Turbine Blade Reviewed

    Junji Sakamoto, Naoya Tada, Takeshi Uemori, Hayato Kuniyasu

    Applied Sciences   10 ( 14 )   4883 - 4883   2020.7

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：MDPI AG  

    DOI： 10.3390/app10144883

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  • Evaluation of strength of stainless steel bolt without heat treatment considering Bauschinger effect during manufacturing process Reviewed

    S. Narita, K. Hayakawa, T. Uemori, Y. Kubota

    Journal of Materials Processing Technology   278   116481 - 116481   2020.4

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.jmatprotec.2019.116481

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  • Analysis of the change of direct current potential difference and diameter distribution of thin pure titanium wire subjected to tensile and fatigue loads for fracture prediction Reviewed

    Junji SAKAMOTO, Yusuke TAKAGI, Takeshi UEMORI, Naoya TADA

    Transactions of the JSME (in Japanese)   86 ( 882 )   19 - 00351   2020.2

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    Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Japan Society of Mechanical Engineers  

    <p>Pure titanium thin wires have been used for medical fields. It is important to investigate the possibility of non-destructive inspection of pure titanium thin wires for the safety utilization of them. In order to investigate a fracture prediction method for a pure titanium thin wire, we performed tensile and fatigue tests and a finite element analysis to analyze the changes of direct current potential difference and diameter distribution of the pure titanium thin wire during tensile and fatigue tests. It was found that a direct current potential difference method may be available for evaluating the tensile and fatigue damages of the pure titanium thin wire. In the tensile and fatigue tests, the normalized direct current potential difference increased almost linearly with an increase in the nominal strain, and a sign of an increase of the normalized direct current potential difference was observed when the fatigue crack propagated. Therefore, the nondestructive inspection could be conducted by setting a tolerance value of the normalized direct current potential difference, or detecting a sign of an increase in the normalized direct current potential difference. In addition, a method of predicting the fracture location from the diameter distribution change of the pure titanium thin wire was studied. The method could be applied to tensile and fatigue fractures.</p>

    DOI： 10.1299/transjsme.19-00351

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  • Microscopic deformation of thin sheet of polycrystalline pure titanium under tension Reviewed

    Naoya Tada, Kentaro Kishimoto, Takeshi Uemori, Junji Sakamoto

    American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP   3   2020

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    Language：English   Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1115/PVP2020-21715

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  • Slip Deformation of Crystal Grains in Semi-Circular Notched Thin Sheet Specimen of Pure Titanium during Tensile Test Reviewed

    Takashi Ishida, Naoya Tada, Takeshi Uemori, Junji Sakamoto

    2019.10

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  • Prediction of Fracture Location in Tensile Test of Short-Fiber-Self-Reinforced Polyethylene Composite Plates Reviewed

    Naoya Tada, Ming Jin, Takeshi Uemori, Junji Sakamoto

    Volume 3: Design and Analysis   3   2019.7

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    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：American Society of Mechanical Engineers  

    DOI： 10.1115/pvp2019-93546

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  • Effect of Lubrication and Forging Load on Surface Roughness, Residual Stress, and Deformation of Cold Forging Tools Reviewed

    Karunathilaka, Tada, Uemori, Hanamitsu, Fujii, Omiya, Kawano

    Metals   9 ( 7 )   783 - 783   2019.7

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.3390/met9070783

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  • Crystal Plasticity Finite Element Analysis of Effects of Microscopic Non-Uniform Deformation on Surface Roughness of Pure Titanium Sheet Reviewed

    Takeshi UEMORI, Hiroki KAKIHARA, Naoya TADA

    Journal of the Society of Materials Science, Japan   68 ( 6 )   478 - 484   2019.6

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Society of Materials Science, Japan  

    DOI： 10.2472/jsms.68.478

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  • Springback Suppression of AZ31 Magnesium Alloy Sheet in Draw Bending at Elevated Temperature Reviewed

    Takashi Katahira, Takeshi Uemori, Tetsuya Yoshida, Michihiro Takiguchi, Tetsuo Naka, Komgrit Lawanwong, Fusahito Yoshida

    Key Engineering Materials   Vol.794   127 - 132   2019.2

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  • Microscopic Elastic and Plastic Inhomogeneous Deformations and Height Changes on the Surface of a Polycrystalline Pure-Titanium Plate Specimen under Cyclic Tension Reviewed

    Naoya Tada, Takeshi Uemori

    Applied Sciences   8 ( 10 )   1907 - 1907   2018.10

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：MDPI AG  

    A cyclic tensile test was carried out using a plate specimen of commercial pure titanium on a digital holographic microscope stage. Microscopic deformation of the grains was observed, and their height distribution was measured on the specimen surface. Each grain showed nanoscopic movement up and down, as well as reverse movement corresponding to specimen loading and unloading. We suggest that the different grain-specific changes in height were caused by microscopic inhomogeneities in the material, such as differences in the crystal orientation and geometries of both the surface and subsurface grains. Changes in grain height increased with tensile load, and a strong relationship was found between the height changes that occurred under elastic and plastic conditions. This suggests that microscopic plastic deformation is predictable from microscopic elastic deformation. In order to investigate the plastic deformation of grains in more detail, slip-line angles were measured after the tensile test. We found slip lines with similar angles in neighboring grains, suggesting that the plastic deformation of grains was not independent, but rather was related to that of surrounding grains and influenced by the deformation of subsurface grains.

    DOI： 10.3390/app8101907

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  • Effect of Contact Pressure Applied on Tool Surface during Cold Forging on Fatigue Life of Tool Steel Reviewed

    UEMORI Takeshi

    Procedia Manufacturing   15   488 - 495   2018

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  • Cyclic stress and strain responses of AZ31 magnesium alloy sheet metal at elevated temperatures Reviewed

    Takeshi Uemori, Takashi Katahira, Tetsuo Naka, Naoya Tada, Fusahito Yoshida

    Procedia Manufacturing   15   1792 - 1799   2018

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  • Dimensional Changes of Graphite Flakes and Fracture in Tensile Tests of Gray Cast Iron Reviewed

    Naoya Tada, Takeshi Uemori

    Conference papers, ASME 2018 Pressure Vessels & Piping Conference   PVP2018-85214   2018

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  • Elastic and Plastic Microscopic Undulation on the Surface of Polycrystalline Pure Titanium Under Tension Reviewed

    Naoya Tada, Takeshi Uemori, Toshiya Nakata

    JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME   139 ( 6 )   1180 - 189   2017.12

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1115/1.4038012

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  • Evaluation of Thin Copper Wire and Lead-Free Solder Joint Strength by Pullout Tests and Wire Surface Observation Reviewed

    Naoya Tada, Takuhiro Tanaka, Takeshi Uemori, Toshiya Nakata

    Crystals   7 ( 8 )   255 - 255   2017.8

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：MDPI AG  

    DOI： 10.3390/cryst7080255

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  • Time-Dependent Fracture of Copper-Cored Lead-Free Solder Ball and Nickel Rod Joints in Air, Distilled Water, and NaCl Solution Reviewed

    Naoya Tada, Takeshi Uemori

    Proceedings of Technical Papers - International Microsystems, Packaging, Assembly, and Circuits Technology Conference, IMPACT   2017-   319 - 322   2017

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    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE Computer Society  

    DOI： 10.1109/IMPACT.2017.8255911

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  • Cracking behavior of thin gold strip deposited on polycarbonate plate under Cyclic and stepwisely-increased tension Reviewed

    Naoya Tada, Yafei Hu, Takeshi Uemori, Toshiya Nakata

    MATEC Web of Conferences   108   01004 - 01004   2017

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1051/matecconf/201710801004

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  • Description of closure of cyclic stress-strain loop and ratcheting based on Y-U model Reviewed

    Fusahito Yoshida, Hiroshi Hamasaki, Takeshi Uemori

    Key Engineering Materials   725   351 - 356   2017

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    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Trans Tech Publications Ltd  

    DOI： 10.4028/www.scientific.net/KEM.725.351

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  • Effect of Hardening Rule for Spring Back Behavior of Forging Reviewed

    Shinobu Narita, Kunio Hayakawa, Yoshihiro Kubota, Takafumi Harada, Takeshi Uemori

    Procedia Engineering   207   167 - 172   2017

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    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Elsevier Ltd  

    DOI： 10.1016/j.proeng.2017.10.756

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  • Theoretical predictions of fracture and springback for high tensile strength steel sheets under stretch bending Reviewed

    Takeshi Uemori, Tetsuo Naka, Naoya Tada, Hidenori Yoshimura, Takashi Katahira, Fusahito Yoshida

    Procedia Engineering   207   1594 - 1598   2017

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.proeng.2017.10.1054

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  • Asymmetric-shaped bending of adhesively bonded sheet metals Reviewed

    Taro Tokuda, Takeshi Uemori, Tetsuya Yoshida, Michihiro Takiguchi, Fusahito Yoshida

    Key Engineering Materials   725   630 - 635   2017

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    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Trans Tech Publications Ltd  

    DOI： 10.4028/www.scientific.net/KEM.725.630

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  • Influence of Bauschinger Effect and Anisotropy on Springback of Aluminum Alloy Sheets Reviewed

    Takeshi Uemori, Satoshi Sumikawa, Tetsuo Naka, Ninshu Ma, Fusahito Yoshida

    MATERIALS TRANSACTIONS   58 ( 6 )   921 - 926   2017

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.2320/matertrans.L-M2017812

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  • Tensile Test of Copper-Cored Lead-Free Solder Joints Using Non-Contact Type Testing Device with Permanent Magnets Reviewed

    Naoya Tada, Takeshi Uemori, Toshiya Nakata

    SEM Annual 2017 Proceedings   478 - 478   2017

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  • Springback analysis of aluminum alloy sheet metals by yoshida-uemori model Reviewed

    Takeshi Uemori, Kento Fujii, Toshiya Nakata, Shinobu Narita, Naoya Tada, Tetsuo Naka, Fusahito Yoshida

    Key Engineering Materials   725   566 - 571   2017

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    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Trans Tech Publications Ltd  

    DOI： 10.4028/www.scientific.net/KEM.725.566

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  • Evaluation of bonding strength of thin copper wire and lead-free solder by pullout tests Reviewed

    Naoya Tada, Takuhiro Tanaka, Hirotsugu Tabata, Takeshi Uemori, Toshiya Nakata

    2016 11th International Microsystems, Packaging, Assembly and Circuits Technology Conference (IMPACT)   164 - 167   2016.10

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    Language：English   Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1109/impact.2016.7799989

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  • Effect of Hardening Rule on Analysis of Forming and Strength of Multistage Cold Forged Bolt without Heat Treatment Reviewed

    Shinobu NARITA, Takeshi UEMORI, Kunio HAYAKAWA, Yoshihiro KUBOTA

    Journal of the Japan Society for Technology of Plasticity   57 ( 670 )   1070 - 1076   2016

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    Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：The Japan Society for Technology and Plasticity  

    <p>The isotropic hardening model for an elastic-plastic material have often been used for simulation of cold forging processes, by which, however, it is difficult to represent the Bauschinger effect properly. On the other hand, considering the Bauschinger effect is essential for more precise simulation of the forming process as well as the strength of the forged part without heat treatment. One example is a cold-forged bolt of stainless steel. In the present paper, for two multistage cold forming processes of non-heat-treated stainless steel bolts, the simulations of the forming process and the strength were performed by FE analysis using the YU model that is one of the kinematic hardening models being able to express the Bauschinger effect. As a result, the Bauschinger effect during the forming process can be expressed properly. Moreover, by carrying out the analysis on the tensile test of the forged bolt, the difference in strength by between the isotropic and the kinematic hardening models can be estimated clearly. Furthermore, the effect of the forming process on the strength of the forged bolt can also be evaluated appropriately.</p>

    DOI： 10.9773/sosei.57.1070

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  • Influence of Bauschinger Effect on Forming Simulation Result and Its Solution

    UEMORI Takeshi

    Journal of the Japan Society for Technology of Plasticity   57 ( 662 )   194 - 198   2016

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    Language：Japanese   Publisher：The Japan Society for Technology of Plasticity  

    DOI： 10.9773/sosei.57.194

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    Other Link： https://jlc.jst.go.jp/DN/JLC/20021776654?from=CiNii

  • Modeling of anisotropic hardening of sheet metals including description of the Bauschinger effect Reviewed

    Fusahito Yoshida, Hiroshi Hamasaki, Takeshi Uemori

    INTERNATIONAL JOURNAL OF PLASTICITY   75   170 - 188   2015.12

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.ijplas.2015.02.004

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  • Microscopic deformation of polycrystalline pure copper wire during tension Reviewed

    Naoya Tada, Yoshitaka Matsukawa, Takeshi Uemori, Toshiya Nakata

    2015 10th International Microsystems, Packaging, Assembly and Circuits Technology Conference (IMPACT)   229 - 232   2015.10

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    Language：English   Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1109/impact.2015.7365226

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  • Shear Deformation Behavior of Adhesive Layer in Stretch-bending/unbendingof Adhesively Bonded Dissimilar Sheet Metals Reviewed

    TOKUDA Taro, YOSHIDA Tetsuya, UEMORI Takeshi, TAKIGUCHI Michihiro, YOSHIDA Fusahito

    Journal of The Adhesion Society of Japan   51 ( 7 )   347 - 354   2015.7

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    Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：The Adhesion Society of Japan  

    <p>In this study, the shear deformation behavior of adhesive layer in stretch-bending/unbending foradhesively bonded dissimilar sheet metals was investigated by two types of experiments and finiteelement analysis. Major results obtained are summarized as follows:（1）The shear deformation behaviorof adhesive layer was observed in bending/unbending tests with two experimental apparatus.（2）The shear deformation of adhesive layer was influenced by the die corner radius and the tensilespeed.（3）The tensile strength of adherend has a large influence on the shear deformation behavior ofadhesive layer. It is possible to suppress the shear deformation of adhesive layer by using a materialwith small tensile strength as one of the two adherends.（4）The delamination of adhesive layer wasoccurred when the shear strain of adhesive layer in stretch-bending/unbending exceeded a certainvalue（approximately 1.7）.（5）FEM analysis was carried out with using constitutive equations possibleto express the visco-plastic behavior obtained in previous research. However the new yield functionwas proposed in this study for improving the precision of FEM analysis, an expected result was notobtained.</p>

    DOI： 10.11618/adhesion.51.347

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  • Modeling of large-strain cyclic plasticity including description of anisotropy evolution for sheet metals Reviewed

    Fusahito Yoshida, Takeshi Uemori, Hiroshi Hamasaki

    Advanced Structured Materials   64   571 - 585   2015.6

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    DOI： 10.1007/978-3-319-19440-0_26

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  • Cyclic plasticity model for accurate simulation of springback of sheet metals Reviewed

    Fusahito Yoshida, Takeshi Uemori

    60 Excellent Inventions in Metal Forming   61 - 66   2015.1

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    DOI： 10.1007/978-3-662-46312-3_10

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  • Implicit stress integration and consistent tangent matrix for Yoshida's 6th order polynomial yield function combined with yoshida-uemori kinematic hardening rule Reviewed

    Hiroshi Hamasaki, Fusahito Yoshida, Takeshi Uemori

    Key Engineering Materials   651-653   558 - 563   2015

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    DOI： 10.4028/www.scientific.net/KEM.651-653.558

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  • Die-dending of adhesively bonded sheet metals Reviewed

    Michihiro Takiguchi, Taro Tokuda, Tetsuya Yoshida, Takeshi Uemori, Fusahito Yoshida

    Key Engineering Materials   626   103 - 108   2015

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    DOI： 10.4028/www.scientific.net/KEM.626.103

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  • Evaluation of forming limit by principal shear strain energies Reviewed

    Hidenori Yoshimura, Hiroya Horita, Takeshi Uemori, Tetsuo Naka, Yutaka Mihara

    Keikinzoku/Journal of Japan Institute of Light Metals   65 ( 5 )   190 - 195   2015

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    DOI： 10.2464/jilm.65.190

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  • Influence of Bauschinger effect and anisotropy on springback of aluminum alloy sheets Reviewed

    Uemori Takeshi, Sumikawa Satoshi, Naka Tetsuo, Ma Ninshu, Yoshida Fusahito

    Journal of Japan Institute of Light Metals   65 ( 11 )   582 - 587   2015

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    For accurate springback calculations, the development of accurate constitutive equation “Yoshida–Uemori model” must always be taken into account. However, several springback calculations of other sheet metals by Yoshida–Uemori model have shown wrong agreements with the corresponding experimental data. The reason is why most of them have been calculated from the view point of the accuracy of Bauschinger effect without the strong anisotropy of sheet metal. In the present paper, we have investigated how the initial anisotropy affects the amount of springback for aluminum sheet metals with Bauschinger effect. Specifically, hat bending experiments in R.D. and T.D. were compared with the corresponding calculations. From the above mentioned comparisons, we found that the optimum combination of an anisotropic yield functions and Yoshida–Uemori model is very important for accurate springback analysis.

    DOI： 10.2464/jilm.65.582

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  • Finite element analysis of high tensile strength steel sheet by using complex step derivative approximations Reviewed

    Takeshi Uemori, Hiroshi Miyake, Tetsuo Naka, Michihiro Takiguchi, Fusahito Yoshida

    Key Engineering Materials   626   187 - 192   2015

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    DOI： 10.4028/www.scientific.net/KEM.626.187

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  • Report of Strain Gauge Seminar under the Auspices of Chugoku-Sikoku Branch

    UEMORI Takeshi

    Journal of the JSTP   55 ( 636 )   14 - 14   2014

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    DOI： 10.9773/sosei.55.14

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  • Observations of cyclic deformation behaviors of aluminum sheet and constitutive modeling Reviewed

    Takeshi Uemori, Satoshi Sumikawa, Tetsuo Naka, Fusahito Yoshida

    11TH INTERNATIONAL CONFERENCE ON TECHNOLOGY OF PLASTICITY, ICTP 2014   81   933 - 938   2014

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    DOI： 10.1016/j.proeng.2014.10.120

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  • A model of anisotropy evolution of sheet metals Reviewed

    Fusahito Yoshida, Hiroshi Hamasaki, Takeshi Uemori

    11TH INTERNATIONAL CONFERENCE ON TECHNOLOGY OF PLASTICITY, ICTP 2014   81   1216 - 1221   2014

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    DOI： 10.1016/j.proeng.2014.10.100

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  • Springback of Aluminum alloy sheet metal and its modeling Reviewed

    Takeshi Uemori, Satoshi Sumikawa, Syohei Tamura, Tetsuo Naka, Fusahito Yoshida

    ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES XVI   939   361 - +   2014

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  • Deformation behavior of adhesive layer in stretch-bending/unbending for adhesively bonded sheet metals

    Michihiro Takiguchi, Taro Tokuda, Tetsuya Yoshida, Takeshi Uemori, Fusahito Yoshida

    ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES XVI   939   19 - +   2014

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  • Modeling of Bauschinger Effect During Stress Reversal Reviewed

    Takeshi Uemori, Satoshi Sumikawa, Fusahito Yoshida

    STEEL RESEARCH INTERNATIONAL   84 ( 12 )   1267 - 1272   2013.12

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    DOI： 10.1002/srin.201300048

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  • A user-friendly 3D yield function to describe anisotropy of steel sheets

    Fusahito Yoshida, Hiroshi Hamasaki, Takeshi Uemori

    INTERNATIONAL JOURNAL OF PLASTICITY   45   119 - 139   2013.6

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    DOI： 10.1016/j.ijplas.2013.01.010

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  • Description of Anisotropy and the Bauschinger Effect on Various Types of Steel Sheets Reviewed

    Fusahito Yoshida, Hiroshi Hamasaki, Takeshi Uemori

    11TH INTERNATIONAL CONFERENCE ON NUMERICAL METHODS IN INDUSTRIAL FORMING PROCESSES (NUMIFORM 2013)   1532   158 - 165   2013

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    DOI： 10.1063/1.4806820

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  • Influence of Anisotropic Yield Functions on Parameters of Yoshida-Uemori Model Reviewed

    Hirotaka Kano, Jiro Hiramoto, Toru Inazumi, Takeshi Uemori, Fusahito Yoshida

    CURRENT STATE-OF-THE-ART ON MATERIAL FORMING: NUMERICAL AND EXPERIMENTAL APPROACHES AT DIFFERENT LENGTH-SCALES, PTS 1-3   554-557   2440 - 2452   2013

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    DOI： 10.4028/www.scientific.net/KEM.554-557.2440

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  • Temperature and Processability of Magnesium Alloy AZ31 on Rectangular Cup Deep Drawing Reviewed

    Yasuhide Nakayama, Tetsuo Naka, Takeshi Uemori, Ichiro Shimizu

    ADVANCES IN ENGINEERING PLASTICITY XI   535-536   326 - +   2013

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  • Constitutive equations of stress-strain responses of aluminum sheet under stress path changes

    2012.12

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  • Direct selective laser sintering of WC-CO cemented carbide by premixing of additives Reviewed

    Hideki Kyogoku, Takeshi Uemori, Akihiko Ikuta, Kenichi Yoshikawa, Hitoshi Ohmori

    ASME/ISCIE 2012 International Symposium on Flexible Automation, ISFA 2012   465 - 468   2012

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    DOI： 10.1115/ISFA2012-7182

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  • Description of Planer Anisotropy and Cyclic Plasticity Behavior of Aluminum Sheet Based on Crystal Plasticity Theory Reviewed

    Takumi Kobayashi, Kohshiroh Kitayama, Takeshi Uemori, Fusahito Yoshida

    MATERIALS AND COMPUTATIONAL MECHANICS, PTS 1-3   117-119   1397 - +   2012

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  • Elasto-plasticity Behavior of IF Steel Sheet with Planar Anisotropy and Its Macro-meso Modeling

    Kohshiroh Kitayama, Takumi Kobayashi, Takeshi Uemori, Fusahito Yoshida

    ISIJ INTERNATIONAL   52 ( 4 )   735 - 742   2012

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    DOI： 10.2355/isijinternational.52.735

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  • OS0303 Experimental Observations of In-Plane Cyclic Tension-Compression Test for Magnesium Alloy Sheet and Its Modelling

    UEMORI Takeshi, KATAHIRA Takuji, YOSHIDA Fusahito, KOHTSU Masahide, ADACHI Daiki

    The Proceedings of the Materials and Mechanics Conference   2012 ( 0 )   _OS0303 - 1_-_OS0303-2_   2012

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    To investigate the deformation behavior of a magnesium sheet, the finite element calculation was carried out under tension and in-plane cyclic tension-compression test. From the experimental data, the twin deformation was observed during the tensile deformation after uniaxial compression. For the accurate description of the above mentioned twin deformation, we have developed the constitutive equation of twining behavior. From the comparison, it is found that the developed constitutive equations can calculate stress-strain response accurately.

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  • Porous titanium dental implants fabricated using metal injection molding

    Hideki Kyogoku, Makiko Yonehara, Takeshi Uemori, Hideki Nakayama

    Proceedings of the International Euro Powder Metallurgy Congress and Exhibition, Euro PM 2012   3   2012

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  • Influence of Yield Functions on Parameters of the Yoshida-Uemori Model

    Steel Research International   830 - 835   2011.10

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  • Constitutive Equations of Bauschinger Effect under Stress Path Change

    Steel Research International   819 - 823   2011.10

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  • Experimental Observation of Elasto-Plasticity Behavior of Type 5000 and 6000 Aluminum Alloy Sheets Reviewed

    Shohei Tamura, Satoshi Sumikawa, Takeshi Uemori, Hiroshi Hamasaki, Fusahito Yoshida

    MATERIALS TRANSACTIONS   52 ( 5 )   868 - 875   2011.5

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    DOI： 10.2320/matertrans.L-MZ201101

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  • Elasto-plasticity Behavior of IF Steel Sheet with Planar Anisotropy and Its Macro-Meso Modeling Reviewed

    Koushirou Kitayama, Takumi Kobayashi, Takeshi Uemori, Fusahito Yoshida

    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN   97 ( 4 )   221 - 229   2011.4

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  • A User-friendly 3D Yield Function for Steel Sheets and Its Application Reviewed

    Fusahito Yoshida, Shohei Tamura, Takeshi Uemori, Hiroshi Hamasaki

    8TH INTERNATIONAL CONFERENCE AND WORKSHOP ON NUMERICAL SIMULATION OF 3D SHEET METAL FORMING PROCESSES (NUMISHEET 2011), PTS A AND B   1383   807 - +   2011

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    DOI： 10.1063/1.3623689

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  • Experimental observation of elasto-plasticity behavior of type 5000 and 6000 aluminum alloy sheets Reviewed

    Shohei Tamura, Satoshi Sumikawa, Takeshi Uemori, Hiroshi Hamasaki, Fusahito Yoshida

    Keikinzoku/Journal of Japan Institute of Light Metals   61 ( 6 )   255 - 261   2011

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    DOI： 10.2464/jilm.61.255

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  • Elasto-plasticity behavior of if steel sheet with planar anisotropy and its macro-meso modeling

    Koushirou Kitayama, Takumi Kobayashi, Takeshi Uemori, Fusahito Yoshida

    Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan   97 ( 4 )   221 - 229   2011

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    DOI： 10.2355/tetsutohagane.97.221

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  • Elasto-Plasticity Behavior of High Strength Steel Sheet in Biaxial Stress Path Change

    Takeshi Uemori, Tohru Kuramitsu, Yuji Mito, Ryutaro Hino, Tetsuo Naka, Fusahito Yoshida

    MATERIALS TRANSACTIONS   51 ( 10 )   1814 - 1818   2010.10

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  • Prediction of Fracture for High Strength Steel Sheets under Stretch Bending Reviewed

    Tetsuo Naka, Takanori Kurose, Takeshi Uemori, Ryutaro Hino, Fusahito Yoshida

    STEEL RESEARCH INTERNATIONAL   81 ( 9 )   841 - 844   2010.9

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  • Springback Simulation of High Strength Steel Sheets Calculated by Yoshida-Uemori Model Reviewed

    Takeshi Uemori, Satoshi Sumikawa, Shohei Tamura, Hiroyuki Akagi, Tetsuo Naka, Fusahito Yoshida

    STEEL RESEARCH INTERNATIONAL   81 ( 9 )   825 - 828   2010.9

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  • Elasto-Plasticity Behavior of Type 5000 and 6000 Aluminum Alloy Sheets and Its Constitutive Modeling Reviewed

    Shohei Tamura, Satoshi Sumikawa, Hiroshi Hamasaki, Takeshi Uemori, Fusahito Yoshida

    NUMIFORM 2010, VOLS 1 AND 2   1252   630 - +   2010

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  • Constitutive modeling for Sheet Metal Forming Simulation

    2010

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  • G0300-5-2 Springback analysis of high tensile strength steel sheet

    AKAGI Hiroyuki, TAMURA Syohei, SUMIKAWA Satoshi, UEMORI Takeshi, YOSHIDA Fusahiro

    The proceedings of the JSME annual meeting   2010   217 - 218   2010

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    High tensile strength steel sheets have been widely used in the automobile industries to produce the light weight constructions. However the large springback deformation due to the high flow stress makes it difficult to the final shapes of car parts. In order to solve the problem, we propose the most accurate constitutive equation "Yoshida-Uemori model". In the present report, we evaluated usefulness of the constitutive equation.

    DOI： 10.1299/jsmemecjo.2010.1.0_217

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  • G0300-5-1 Numerical simulation of cyclic stress-strain responses for sheet metals by homogenaization method

    KAGEYAMA Takahiro, UEMORI Takeshi, YOSHIDA Fusahito

    The proceedings of the JSME annual meeting   2010   215 - 216   2010

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    With the great development of computer hard technologies, there is a great demand for the accurate finite element analysis which can deal with the morphology of materials. There were so many reports that the complicated plastic deformation behaviors such as "Work hardening", "Bauschinger effect" and "Permanent softening" is related to morphology. We have introduced the Homogenization theory into the commercial finite element code "Marc" in order to research how different stress-strain responses were obtained.

    DOI： 10.1299/jsmemecjo.2010.1.0_215

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  • FLD OF AZ31 SHEET UNDER WARM STRETCHING AND ITS PREDICTION Reviewed

    Tetsuo Naka, Yasuhide Nakayama, Takeshi Uemori, Ryutaro Hino, Fusahito Yoshida

    ENGINEERING PLASTICITY AND ITS APPLICATIONS: FROM NANOSCALE TO MACROSCALE   638 - 643   2009

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  • PLASTIC DEFORMATION BEHAVIOR OF HIGH STRENGTH STEEL SHEET UNDER NON-PROPORTIONAL LOADING AND ITS MODELING Reviewed

    Takeshi Uemori, Yuji Mito, Satoshi Sumikawa, Ryutaro Hino, Fusahito Yoshida, Tetsuo Naka

    ENGINEERING PLASTICITY AND ITS APPLICATIONS: FROM NANOSCALE TO MACROSCALE   22 - +   2009

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  • Elasto-plastic defomation behavior of high tensile strength steel sheet under the strain path changes

    UEMORI Takeshi, KURAMITSU Tohru, MITO Yuji, HINO Ryutaro, NAKA Testuo, YOSHIDA Fusahito

    Journal of the JSTP   50 ( 576 )   39 - 43   2009

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    The elastopasticity behavior of a high-strength steel sheet was investigated by performing biaxial tension experiments. To evaluate the accuracy of constitutive models in describing such elastoplasticity behavior, numerical simulations of stress-strain responses were conducted for the same stress paths as those in the experiments using two types of models: the isotropic hardening model (IH model) and the kinematic hardening model proposed by the present authors (Yoshida-Uemori model). In this work, special emphasise is placed in the cases of stress-path change. In experiments on radial loadings after equibalanced tension preloading, it was found that flow stresses are considerably lower than uniaxial tension flow stress. The IH model hardly describes this phenomenon, although it is sufficient for stress-strain analysis of proportional loading cases. In contrast, the Yoshida-Uemori model can well predict every stress-strain response in biaxial stress-path changes.

    DOI： 10.9773/sosei.50.39

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  • Material testing (tension test and evaluation for deformation behavior and formability)

    2009

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  • Cold Butt Joining Steel Sheet by Shot Peening

    2009

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  • Butt Joining of Hight Strength Steel Sheet and Dissimilar Metal Sheet by Shot Peening

    2009

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  • PLASTIC DEFORMATION BEHAVIOR OF HIGH STRENGTH STEEL SHEET UNDER NON-PROPORTIONAL LOADING AND ITS MODELING

    Takeshi Uemori, Yuji Mito, Satoshi Sumikawa, Ryutaro Hino, Fusahito Yoshida, Tetsuo Naka

    INTERNATIONAL JOURNAL OF MODERN PHYSICS B   22 ( 31-32 )   5394 - 5399   2008.12

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  • FLD OF AZ31 SHEET UNDER WARM STRETCHING AND ITS PREDICTION

    Tetsuo Naka, Yasuhide Nakayama, Takeshi Uemori, Ryutaro Hino, Fusahito Yoshida, Masahide Kohzu, Kenji Higashi

    INTERNATIONAL JOURNAL OF MODERN PHYSICS B   22 ( 31-32 )   6010 - 6015   2008.12

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  • FE Simulation of Non-uniform Plastic Deformation of Steel Sheet and Elimination of Yield Point in Temper Rolling(<Special Issue>Progress of Analysis on Micro-plasticity and Practical Technology in Temper Rolling)

    YOSHIDA Fusahito, UEMORI Takeshi, KANEDA Yuya, YAMAMOTO Shigeo, GOTO Yoshitaka, SAKAI Gakuto

    Tetsu- to- Hagane   94 ( 10 )   384 - 390   2008.10

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    Finite element simulations of temper rolling of a steel sheet were performed using a model of elasto-viscoplasticity that describes the yield-point phenomena such as a high upper yield point, the rate-dependent Luders strain at the yield plateau and the subsequent workhardening. From the simulations of uniaxial tension of temper-rolled sheets, the mechanism of elimination of the yield point by rolling has been clarified. For the purpose of the elimination of the yield point, the roughness of the roll plays an important role. During the temper rolling with rough surface rolls, a number of plastic zones are non-uniformly formed on the surfaces of the sheet, and from these numerous Luders bands will start to propagate simultaneously. Consequently, macroscopic plastic deformation more likely to occur in the temper-rolled sheet under a comparatively low load without showing the yield point.

    DOI： 10.2355/tetsutohagane.94.384

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  • FE Simulation of Non-uniform Plastic Deformation of Steel Sheet and Elimination of Yield Point in Temper Rolling Reviewed

    Fusahito Yoshida, Takeshi Uemori, Yuya Kaneda, Shigeo Yamamoto, Yoshitaka Goto, Gakuto Sakai

    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN   94 ( 10 )   A384 - A390   2008.10

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  • Effects of strain rate, temperature and sheet thickness on yield locus of AZ31 magnesium alloy sheet

    Tetsuo Naka, Takeshi Uemori, Ryutaro Hino, Masahide Kohzu, Kenji Higashi, Fusahito Yoshida

    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY   201 ( 1-3 )   395 - 400   2008.5

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    DOI： 10.1016/j.jmatprotec.2007.11.189

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  • Finite element simulation

    2008

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  • Effects of strain rate and temperature on yield locus for AZ31 magnesium alloy sheet

    Tetsuo Naka, Masanori Hayakashi, Yasu Hide Nakayama, Takeshi Uemori, Masahide Kohzu, Kenji Higashi, Fusahito Yoshida

    ENGINEERING PLASTICITY AND ITS APPLICATIONS FROM NANOSCALE TO MACROSCALE, PTS 1 AND 2   340-341   119 - +   2007

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  • Plastic deformation behavior of high strength steel sheet under non-proportional loading and its modeling

    T. Uemori, T. Kuramitsu, R. Hino, T. Naka, F. Yoshida

    ENGINEERING PLASTICITY AND ITS APPLICATIONS FROM NANOSCALE TO MACROSCALE, PTS 1 AND 2   340-341   895 - +   2007

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  • Modeling of large-strain cyclic plasticity for accurate springback simulation

    F. Yoshida, T. Uemori, S. Abe

    ENGINEERING PLASTICITY AND ITS APPLICATIONS FROM NANOSCALE TO MACROSCALE, PTS 1 AND 2   340-341   811 - +   2007

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  • Effect of strain-rate and temperature on yield locus for 5083 aluminum alloy sheet Reviewed

    T Naka, Y Nakayama, T Uemori, R Hino, F Yoshida

    ADVANCES IN ENGINEERING PLASTICITY AND ITS APPLICATIONS, PTS 1 AND 2   274-276   937 - 942   2004

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  • A model of large-strain cyclic plasticity and its application to springback simulation

    F Yoshida, T Uemori

    INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES   45 ( 10 )   1687 - 1702   2003.10

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    DOI： 10.1016/j.ijmecsci.2003.10.013

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  • Effects of temperature on yield locus for 5083 aluminum alloy sheet

    T Naka, Y Nakayama, T Uemori, R Hino, F Yoshida

    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY   140   494 - 499   2003.9

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    DOI： 10.1016/S0924-0136(03)00780-5

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  • Effects of temperature on yield locus for 5083 aluminum alloy sheet

    T Naka, Y Nakayama, T Uemori, R Hino, F Yoshida

    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY   140   494 - 499   2003.9

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  • A model of large-strain cyclic plasticity and its application to springback simulation Reviewed

    F Yoshida, T Uemori

    ENGINEERING PLASTICITY FROM MACROSCALE TO NANOSCALE PTS 1 AND 2   233-2   47 - 58   2003

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  • A Constitutive Equation for Description of Large-Strain Cyclic Plasticity

    YOSHIDA Fusahito, UEMORI Takeshi

    Transactions of the Japan Society of Mechanical Engineers   68 ( 667 )   415 - 421   2002

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    This paper presents a constitutive model of plasticity that describes the cyclic stress-strain responses at large strain. A new equation of backstress evolution is proposed for an accurate simulation of the transient Bauschinger effect. An original idea of a non-isotropic-hardening surface defined in the stress space is presented for the description of the workhardening stagnation appearing under reverse deformation, as well as the strain-range and mean-strain dependencies of cyclic hardening characteristics. The validity of this model is confirmed by comparing the cyclic stress-strain responses calculated by the model with the experimental observations on two types of steel sheets (an aluminum-killed steel and a dual-phase high strength steel of 590 MPa tensile strength).

    DOI： 10.1299/kikaia.68.415

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  • Importance of Appropriate Modeling of the Bauschinger Effect in Springback Analysis

    Journal of the Japan Society for Technology of Plasticity   43 ( 498 )   65 - 69   2002

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  • Investigation of Cyclic Elasto-Plastic Behavior of Coppeer Sheet

    Key Engineering Materials   2002

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  • Elastic-plastic behavior of steel sheets under in-plane cyclic tension-compression at large strain

    F Yoshida, T Uemori, K Fujiwara

    INTERNATIONAL JOURNAL OF PLASTICITY   18 ( 5-6 )   633 - 659   2002

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    DOI： 10.1016/S0749-6419(01)00049-3

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  • スプリングバック解析におけるバウシンガー効果の適切なモデル化の重要性

    塑性と加工   43 ( 498 )   65 - 69   2002

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  • 高張力鋼板の面内応力反転時の弾塑性挙動とそのモデル化

    塑性と加工   43 ( 494 )   59 - 63   2002

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  • A model of large-strain cyclic plasticity describing the Bauschinger effect and workhardening stagnation

    F Yoshida, T Uemori

    INTERNATIONAL JOURNAL OF PLASTICITY   18 ( 5-6 )   661 - 686   2002

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    DOI： 10.1016/S0749-6419(01)00050-X

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  • Investigation of cyclic elasto-plastic behavior of copper sheet

    Takeshi Uemori, Fusahito Yoshida

    Key Engineering Materials   233-236 ( I )   287 - 292   2002

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  • 軟鋼板の大ひずみ繰返し塑性変形挙動とその構成モデル

    塑性と加工   30 ( 338 )   358 - 364   2001

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  • Plasticity Models Describing the Bauschinger Effect and Yield-Point Phenomena

    INZYNIERIA MATERIALOWA   974?980   2001

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  • FE analysis of springback in hat-bending with consideration of initial anisotropy and the Bauschinger effect

    T Uemori, T Okada, F Yoshida

    ADVANCES IN ENGINEERING PLASTICITY, PTS 1-2   177-1   497 - 502   2000

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  • Simulation of springback in V-bending process by elasto-plastic finite element method with consideration of Bauschinger effect

    T Uemori, T Okada, F Yoshida

    METALS AND MATERIALS-KOREA   4 ( 3 )   311 - 314   1998

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  • Prediction of active slip system for commercially pure titanium sheet by crystal plasticity finite element analysis

    Takeshi UEMORI, Naoya TADA, Junji SAKAMOTO, Masatoshi DOI

    Extended abstract of The Advanced Technology in Experimental Mechanics and International DIC Society Joint Conference 2023 (ATEM-iDICs '23)   19-G05   1900

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  • 鍛造で作製したFe-Al接合試験片の接合界面強度に関する検討

    両保 侑希, 多田 直哉, 上森 武, 坂本 惇司, 西本 泰己, Nuwan Karunathilaka

    日本機械学会中国四国支部第61期総会・講演会予稿集   02b1   2023.3

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  • Ti-6Al-4V 薄板の引張試験における試験片切出し方向と側面あらさが破壊形態に与える影響

    泓田翔馬, 多田直哉, 上森武, 坂本惇司, 緒方隆太

    2025年度 塑性加工春季講演会講演論文集   271 - 272   2025.5

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  • セルロースナノファイバー強化天然ゴムの繰返し引張試験における表面粗さの変化に関する検討

    卜部力翔, 多田直哉, 上森武, 坂本惇司, 榊原圭太

    一般社団法人日本ゴム協会 2025年度年次大会研究発表講演会   45   2025.5

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  • 細線を対象とした自由表面座標系に基づく逆極点図マップの作成方法

    川口暢也, 多田直哉, 上森武, 坂本惇司, 田中洸多

    2025年度 塑性加工春季講演会講演論文集   287 - 288   2025.5

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  • 円孔付き純チタン平板試験片の弾性および塑性域引張 における表面高度変化

    緒方隆太, 多田直哉, 上森武, 坂本惇司

    日本機械学会中国四国支部第62期総会・講演会予稿集   01A5   2025.3

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  • 純アルミニウム小型ブロックの加圧試験における接触面の実接触状態の推定

    多田直哉, 上森武, 坂本惇司

    日本塑性加工学会第75回塑性加工連合講演会講演論文集   445 - 446   2024.10

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  • 純アルミニウム製小型ブロックの加圧試験における接触面の微視的変形

    前田春輝, 多田直哉, 上森武, 坂本惇司

    日本機械学会2024年度年次大会予稿集   S031p-25   2024.9

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  • 鍛造によるアルミニウム合金とアルミニウムめっき鋼の接合に関する検討

    千田亮, 多田直哉, 上森武, 坂本惇司, Nuwan Karunathilaka

    日本機械学会2024年度年次大会予稿集   S042p-09   2024.9

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  • 純アルミニウム薄膜の引張変形に及ぼす接着剤スポットの影響

    池田皇士郎, 多田直哉, 上森武, 坂本惇司

    日本金属学会講演概要集2024年秋期(第175回)講演概要集   264   2024.9

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  • アルミニウム合金の曲げねじり振動時の疲労き裂進展特性に関する検討

    杉澤拓海, 多田直哉, 坂本惇司, 上森武

    日本材料学会第36回疲労シンポジウム講演論文集   27   2024.9

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  • 純チタン細線の引張変形に及ぼす結晶粒径の影響

    田中洸多, 坂本惇司, 多田直哉, 上森武, 川口暢也

    日本金属学会第64回・日本鉄鋼協会第67回中国四国支部講演大会 講演概要集   B05   2024.8

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  • チタン合金の曲げ振動における振幅変化を用いたき裂寸法推定手法の検討

    坂本惇司, 多田直哉, 上森武

    日本材料学会第73期学術講演会講演論文集   521   2024.5

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  • 純チタン細線の引張特性に及ぼす結晶粒径の影響についての検討

    田中洸多, 坂本惇司, 多田直哉, 上森武, 大石滉葉

    日本機械学会中国四国支部第62期総会・講演会予稿集   02a4   2024.3

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  • 純チタン薄膜試験片の繰返し引張試験における除荷後の結晶方位変化と表面高度変化の関係

    大橋弘晃, 多田直哉, 上森武, 坂本惇司

    日本機械学会中国四国支部第62期総会・講演会予稿集   02b5   2024.3

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  • 3Dプリンタで作製したOnyx円孔試験片の引張特性に及ぼす長炭素繊維導入の効果

    田中亮至, 多田直哉, 上森武, 坂本惇司, 池田皇士郎

    日本機械学会中国四国支部第62期総会・講演会予稿集   02a5   2024.3

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  • 一方向プリプレグの繰返し曲げにおける直流電位差と炭素繊維位置の変化

    中村駿志, 上森武, 多田直哉, 坂本惇司, 村田智哉

    日本機械学会中国四国支部第62期総会・講演会予稿集   02c1   2024.3

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  • 純アルミニウム製小型ブロックの高接触圧加圧試験における表面形状変化の観察と接触面積率の推定

    中村怜司, 多田直哉, 上森武, 坂本惇司, 福本学

    日本機械学会中国四国支部第62期総会・講演会予稿集   02c4   2024.3

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  • 異周速圧延を受ける純アルミニウムの集合組織形成に関する結晶塑性均質化有限要素解析

    井木祐輔, 上森武, 多田直哉, 坂本惇司

    日本塑性加工学会第74回塑性加工連合講演会講演論文集   97 - 98   2023.11

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  • 純チタン薄膜試験片の段階的荷重増加繰返し引張試験における除荷後の結晶方位と表面高度の変化

    大橋弘晃, 多田直哉, 上森武, 坂本惇司

    日本機械学会M&M2023材料力学カンファレンス講演予稿集   MM0311   2023.9

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  • 円孔付き純チタン平板試験片の弾性および塑性域引張における結晶粒中心と粒界近傍における表面高度変化

    緒方隆太, 多田直哉, 上森武, 坂本惇司

    日本機械学会M&M2023材料力学カンファレンス講演予稿集   MM0310   2023.9

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  • アルミニウム合金における 曲げ振動時の疲労損傷に関する検討

    坂本惇司, 多田直哉, 上森武

    日本材料学会第72期学術講演会講演論文集   504504   2023.5

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  • 結晶塑性有限要素解析による多結晶純チタン薄膜の活動すべり系予測

    土居 雅利, 上森 武, 多田 直哉, 坂本 惇司

    日本機械学会中国四国支部第61期総会・講演会予稿集   02c2   2023.3

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  • セルロースナノファイバー強化天然ゴムの繊維／ゴム界面近傍における変形拘束に関する膨潤試験による検討

    奥井 健斗, 多田 直哉, 上森 武, 坂本 惇司, 増田 廉, 榊原 圭太

    日本機械学会中国四国支部第61期総会・講演会予稿集   02b2   2023.3

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  • チタン合金の曲げ振動寿命に及ぼす微粒子ピーニングの影響

    畑 昂輝, 坂本 惇司, 多田 直哉, 上森 武, 杉澤 拓海

    日本機械学会中国四国支部第61期総会・講演会予稿集   02b3   2023.3

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  • Ti-6Al-4V平滑試験片の引張試験における微視的塑性変形から破壊へのプロセス

    丸一 紘大, 多田 直哉, 上森 武, 坂本 惇司, 緒方 隆太

    日本機械学会中国四国支部第61期総会・講演会予稿集   02c1   2023.3

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  • 二相組織材料に発生する不均一応力が等塑性仕事曲面に与える影響に関する均質化有限要素解析

    稲毛俊介, 上森武, 多田直哉, 坂本惇司

    日本塑性加工学会第73回塑性加工連合講演会講演論文集   73rd   387 - 388   2022.11

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  • 純アルミニウム製小型ブロックを用いた高接触圧加圧試験における表面形状変化の観察

    中村怜司, 多田直哉, 上森武, 坂本惇司, 福本学

    軽金属学会中国四国支部第14回講演大会講演概要集   9 - 9   2022.10

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  • 修正シュミット因子による多結晶純チタン薄膜の活動すべり系予測に関する解析的検討

    土居雅利, 上森武, 多田直哉, 坂本惇司

    軽金属学会中国四国支部第14回講演大会講演概要集   6 - 6   2022.10

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  • Effect of Titanium Dioxide Particle Content on Tensile Properties of Ultra-High Molecular Weight Polyethylene/Titanium Dioxide Composites

    丸一紘大, 多田直哉, 上森武, 坂本惇司, 田中亮至

    日本機械学会M&M材料力学カンファレンス(CD-ROM)   2022   OS1611   2022.9

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  • Slip Activation Condition for Each Crystal Grain in Thin Sheet of Polycrystalline Pure Titanium under Tension

    多田直哉, 上森武, 坂本惇司, 石丸恵太

    日本機械学会M&M材料力学カンファレンス(CD-ROM)   2022   OS0615   2022.9

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  • Changes in Diameter and Nominal Strain of Ti-6Al-4V Alloy Thin Wire under Fatigue Loading

    TSUKIHARA Kyoka, SAKAMOTO Junji, TADA Naoya, UEMORI Takeshi, OISHI Koyo

    The Proceedings of Conference of Chugoku-Shikoku Branch   2022.60   02c2   2022.3

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    DOI： 10.1299/jsmecs.2022.60.02c2

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  • SUS304箔の平滑および切欠き試験片の引張破壊形態

    王子錚, 坂本惇司, 多田直哉, 上森武

    日本機械学会中国四国支部第60期総会・講演会予稿集   02c3   2022.3

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  • Evaluation of Joint Strength between Anodized Pure Titanium and High-Density Polyethylene by Tensile Shear Tests

    KAYASHIMA Chihiro, TADA Naoya, UEMORI Takeshi, SAKAMOTO Junji, MARUICHI Koudai, TANAKA Ryoji

    The Proceedings of Conference of Chugoku-Shikoku Branch   2022.60   02a2   2022.3

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    DOI： 10.1299/jsmecs.2022.60.02a2

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  • Observation of Pull-out and Fracture Behaviour of Fibers in Cracked Specimen of Natural Rubber Reinforced with Cellulose Nanofibers during Tension

    SAKAKIBARA Momo, TADA Naoya, UEMORI Takeshi, SAKAMOTO Junji, OKUI Kento, SAKAKIBARA Keita

    The Proceedings of Conference of Chugoku-Shikoku Branch   2022.60   02b2   2022.3

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    DOI： 10.1299/jsmecs.2022.60.02b2

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  • Relationship between Inhomogeneous Elastic Stress Distribution and Activated Slip System in Thin Sheet Specimen of Pure Titanium during Tension

    ISHIMARU Keita, TADA Naoya, UEMORI Takeshi, SAKAMOTO Junji, MATSUMOTO Daiki

    The Proceedings of Conference of Chugoku-Shikoku Branch   2022.60   02c4   2022.3

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    DOI： 10.1299/jsmecs.2022.60.02c4

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  • Study on Tensile Deformation Behavior of Polycrystalline Pure Titanium by Microscopic Residual Strain Measurement

    MATSUMOTO Daiki, TADA Naoya, UEMORI Takeshi, SAKAMOTO Junji, ISHIMARU Keita

    The Proceedings of Conference of Chugoku-Shikoku Branch   2022.60   02c5   2022.3

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    DOI： 10.1299/jsmecs.2022.60.02c5

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  • Evaluation of Early Fatigue Damage of CFRP Laminates by DC Potential Difference Method

    KOMOTO Shohei, TADA Naoya, UEMORI Takeshi, SAKAMOTO Junji, NAKAMURA Shunji, SAKURAI Kaori, TAKANASHI Masahiro

    The Proceedings of Conference of Chugoku-Shikoku Branch   2022.60   02a1   2022.3

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    DOI： 10.1299/jsmecs.2022.60.02a1

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  • Change in bending amplitude with crack growth and its effect on crack propagation life in bending vibration of aluminum alloy

    小林大悟, 坂本惇司, 多田直哉, 上森武

    日本材料学会学術講演会講演論文集(CD-ROM)   71st   2022

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  • 金属のバウシンガー効果とその数値解析

    上森武

    型技術ワークショップ2021inひろしま   41 - 44   2021.11

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  • 疲労初期段階の表面高度変化を用いた純チタンの疲労き裂発生箇所の予測の検討

    彭安瑞, 多田直哉, 坂本惇司, 上森武

    軽金属学会中国四国支部第13回講演大会講演概要集   8   2021.10

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  • Effect of Cyclic Bending Deformation on Tensile Strength of Aluminum Foil

    田辺太一, 多田直哉, 上森武, 坂本惇司, 白神修

    日本材料学会学術講演会講演論文集(CD-ROM)   70th   132   2021.5

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  • Observation of slip lines of pure titanium thin wire in stepwise tensile test

    坂本惇司, 島田侑紀, 多田直哉, 上森武

    日本材料学会学術講演会講演論文集(CD-ROM)   70th   2021.5

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  • 面内応力反転時の6056アルミニウム合金の応力－ひずみ応答に関する数値解析的検討

    酒匂麻帆, 上森武, 多田直哉, 坂本惇司

    日本金属学会講演概要集2021年春期(第168回)講演大会   168th   2021.3

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  • アルミニウム合金の温間二軸引張変形挙動の解析的検討

    村尾侑亮, 上森武, 多田直哉, 坂本惇司

    日本金属学会講演概要集2021年春期(第168回)講演大会   168th   2021.3

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  • Analytical Study on Evaluation of Bauschinger Effect of Aluminum Sheet by L-bending Test

    NISHIYAMA Daigo, UEMORI Takeshi, TADA Naoya, SAKAMOTO Junji

    The Proceedings of Conference of Chugoku-Shikoku Branch   2021.59   02b5   2021.3

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    DOI： 10.1299/jsmecs.2021.59.02b5

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  • 結晶塑性理論を用いたアルミニウム圧延集合組織の解析的検討

    日本機械学会中国四国支部第, 期総会, 講演会講演論文集

    The Proceedings of Conference of Chugoku-Shikoku Branch   2021.59   02d1   2021.3

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    DOI： 10.1299/jsmecs.2021.59.02d1

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  • Study on slip deformation behavior of crystal grains in notched thin sheet specimens of pure titanium during tension

    ISHIDA Takashi, TADA Naoya, UEMORI Takeshi, SAKAMOTO Junji, ISHIMARU Keita

    The Proceedings of Conference of Chugoku-Shikoku Branch   2021.59   02d2   2021.2

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    DOI： 10.1299/jsmecs.2021.59.02d2

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  • リーン型二相ステンレス鋼板の二軸応力状態下における塑性変形挙動の実験的検討

    藤田隼輔, 上森武, 多田直哉, 坂本惇司, 石丸詠一朗

    日本塑性加工学会第71回塑性加工連合講演会講演論文集   221 - 222   2020.10

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  • 多結晶純チタンの繰返し引張後の微視的残留応力とすべり線の関係

    松本大樹, 多田直哉, 上森武, 坂本惇司

    日本材料学会第6回材料WEEK材料シンポジウム   104   2020.10

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  • 複素数階偏微分法の汎用有限要素法への適用

    上森武, 多田直哉, 坂本惇司, 早川邦夫, 成田忍

    鋼板のテンションレベラモデリング高度化研究会最終報告会資料   6   2020.9

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  • 電流経路に着目したCFRP内部の繊維分布と電位差の関係に関する解析

    河本詳平, 多田直哉, 上森武, 坂本惇司

    日本機械学会2020年度年次大会論文集   ( 20-1 )   J03312   2020.9

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  • Ti-6Al-4V合金細線の疲労特性の評価

    築原京香, 坂本惇司, 多田直哉, 上森武

    日本機械学会2020年度年次大会論文集   ( 20-1 )   2020.9

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  • 精密ショットピーニング処理と研磨を施した高速度工具鋼の表面粗さ，残留応力，疲労寿命の関係に関する検討

    川西志朗, 多田直哉, 上森武, 坂本惇司, ヌワンカルナティラカ

    日本機械学会2020年度年次大会論文集   ( 20-1 )   2020.9

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  • セルロースナノファイバー強化天然ゴムの引張変形に伴う表面高度変化

    榊原桃, 多田直哉, 上森武, 坂本惇司, 石田諭史

    日本機械学会2020年度年次大会論文集   ( 20-1 )   2020.9

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  • 面内反転負荷を受けるTi-6242合金の結晶塑性均質化有限要素解析

    三井 孔佑, 上森 武, 多田 直哉, 坂本 惇司

    日本機械学会2020年度年次大会論文集   ( 20-1 )   2020.9

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  • 引張せん断試験による異なる表面性状の純チタンと高密度ポリエチレンの接合強度評価

    萱嶋千紘, 多田直哉, 上森武, 坂本惇司, 西川紘平

    日本機械学会2020年度年次大会論文集   ( 20-1 )   2020.9

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  • L曲げ解析を用いた590MPa級高張力鋼板の応力反転変形挙動の評価

    上森武, 多田直哉, 坂本惇司, 中本浩聖, 西山大悟, 松村宗一郎, 成田忍

    日本材料学会第69期学術講演会講演論文集   2020.5

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  • 直流電位差法を用いたCFRP積層板の引張及び曲げ損傷の評価

    佐藤 一真, 多田 直哉, 上森 武, 坂本 惇司, 河本 詳平, 鈴木 菜摘, 高梨 正祐

    日本機械学会中国四国支部第58期総会・講演会講演論文集   2020.3

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  • ステンレス薄板のSD効果に関する実験的検討

    柴井宏治, 上森武, 多田直哉, 坂本惇司

    33 ( 1 )   2020.3

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  • ステンレス箔の引張変形特性に及ぼす樹脂フィルムラミネートの影響

    信定宥杜, 多田直哉, 坂本惇司, 上森武

    材料とプロセス(CD-ROM)   33 ( 1 )   2020.3

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  • 積層セラミックコンデンサブロックの不均一圧縮変形に関する数値解析

    玉尾 晟次郎, 多田 直哉, 上森 武, 坂本 惇司

    日本機械学会中国四国支部第58期総会・講演会講演論文集   2020.2

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  • 406 Vickers Hardness Characteristics in Ferritic Fe-Cr Alloy Single Crystals

    FUJII Kento, HAMASAKI Hiroshi, YOSHIDA Fusahito, UEMORI Takeshi, ISOGAI Eiji

    2016 ( 54 )   "406 - 1"-"406-2"   2016.2

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  • Prediction and Evaluation of Residual Stress of Steel Sheet After Leveling Process

    21 ( 10 )   597 - 602   2016

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  • OS0108-275 Numerical Analysis of Cyclic Deformation Behaviour of Magnesium Alloy Sheet Metal by Crystal Plastic Finite Element Method

    UEMORI Takeshi, KATAHIRA Takashi, NAKA Tetsuo, YOSHIDA Fusahito

    2015   "OS0108 - 275-1"-"OS0108-275-2"   2015.11

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    The cyclic deformation behavior of AZ31 magnesium alloy sheet metal have been investigate in order to reveal the general material elasto-plastic behaviors related with its texture, such as Bauschinger effect and flow stress during stress reversal, by finite element analyses. To discuss these phenomena of AZ31 magnesium alloy sheet at the room temperature to 200 degree [Celsius], the crystal plasticity material models, which can take into account the size effect of twined region proposed by Kitayama was introduced into the commercial finite element code. The calculated results by the applied model can describe moderately the corresponding experimental data at the room temperature to 200 degree.

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  • 118 Evaluation of Mechanical Properties of Self-Reinforced Polyethylene with Short Ultra-High-Molecular-Weight Fibers

    TABATA Hirotsugu, TADA Naoya, UEMORI Takeshi, NAKATA Toshiya

    Materials and processing conference   2015 ( 23 )   "118 - 1"-"118-4"   2015.11

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    Tensile tests were performed using plate specimens of self-reinforced polyethylene (SRPE) with short ultra-high molecular weight polyethylene (UHMWPE) fibers. The effect of fiber length on the properties was investigated. The specimens were made by hot-pressing the stacked HDPE films with short UHMWPE fibers distributed between each film at high temperature. The SRPE specimens showed much larger elastic modulus and tensile strength than monolithic HDPE specimens while their fracture took place at smaller strain than the monolithic HDPE specimens. Focusing on the effect of UHMWPE fibers, the specimens reinforced with longer fibers of 120 μm showed larger elastic modulus and tensile strength than those reinforced with shorter fibers of 60 μm. It was considered that the difference was attributed to the shearing force between fibers and matrix or pull-out force of fibers during tension taking into consideration the feet that lots of pulled-out fibers were observed on the fracture surface.

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  • J0410301 Deformation behaviors of sheet metals during stress path changes and its constitutive model

    UEMORI Takeshi, TADA Naoya

    Mechanical Engineering Congress, Japan   2015   "J0410301 - 1"-"J0410301-4"   2015.9

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    The elasto-plastic deformation behaviors of an IF steel sheet during stress path changes were investigated by performing nonproportional tension-compression tests. To evaluate the developed constitutive models in describing nonproportional deformation behaviors, numerical simulations of stress-strain responses were conducted for the same stress paths as the experiments. From the comparisons of experiment and calculations, it was found that the proposed constitutive model can describe well every deformation behaviors of an IF steel sheet during stress path changes.

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  • 304 Prediction of Warm FLD's for AZ31 Magnesium Sheet with Consideration of Strain Path

    ODE Akiyoshi, NAKA Tetsuo, UEMORI Takeshi, YOSHIDA Fusahito, KODU Masahide, HIGASHI Kenji

    2010 ( 48 )   71 - 72   2010.2

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  • 101 Elasto-plastic constitutive equation considering stress-path change

    SUMIKAWA Satoshi, NAKAMURA Shuhei, UEMORI Takeshi, YOSHIDA Husahito

    2010 ( 48 )   1 - 2   2010.2

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  • Report on the 3rd Meeting of JSTP Young Staff

    UEMORI Takeshi

    51 ( 588 )   19 - 20   2010.1

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  • 128 Springback analysis of Aluminum alloy sheet

    UEMORI Takeshi, SUMIKAWA Satoshi, TAMURA Syohei, HAMASAKI Hiroshi, NAKA Tetsuo, YOSHIDA Fusahito

    Materials and processing conference   2009 ( 17 )   "128 - 1"-"128-2"   2009.11

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    Since aluminum alloy sheet metal have strong mechanical features such as low Yong's modulus, low ductility and strong initial anisotropy (high Lankford value), it remains one of the most difficult materials to predict the final shape of springback. In order to solve the problem, we applied the Yoshida-Uemori model for an aluminum alloy sheet metal s. In the present research, we have investigated the experimental Bauschinger effect and anisotropy of aluminum sheet metal. The calculated results show the great agreement with the corresponding experimental springback for aluminum alloy sheet. The efficiency of Yoshida-Uemori model for aluminum sheet metal is proved.

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  • 116 Numerical Simulations of Elasto-Plastic Deformation of Steels Based on the Theory of Poly-crystal Plasticity

    KITAYAMA Koushirou, TAMURA Shouhei, SUMIKAWA Satoshi, UEMORI Takeshi, YOSHIDA Fusahito

    2009 ( 47 )   31 - 32   2009.2

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  • 1006 Effects of Temperature and Strain-Rate on Non-proportion Forming Limit Diagram for AZ31 Magnesium Alloy Sheets

    UEKAWA Yosuke, KATAHIRA Takashi, ODE Akiyoshi, NAKA Testuo, UEMORI Takeshi, YOSHIDA Fusahito

    2009 ( 47 )   337 - 338   2009.2

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  • 206 Effect of stress-induced martensitic transformation on cyclic elastic-plastic deformation of austenitic stainless steel

    OGAWA Kouhei, KANEORI Naoki, HAMASAKI Hiroshi, UEMORI Takeshi, TOSHIDA Fusahito

    2009 ( 47 )   57 - 58   2009.2

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  • 319 Prediction of Forming Limit of AZ31 Magnesium Alloy Sheets under Non-proportional Deformation

    KATAHIRA Takashi, UEKAWA Yosuke, NAKA Tetsuo, UEMORI Takeshi, HINO Ryutaro, YOSHIDA Fusahito, KOHZU Masahide, HIGASHI Kenji

    2008 ( 46 )   119 - 120   2008.2

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  • 208 Prediction of yield surface of BCC metals based on crystal plasticity theory

    KITAYAMA Koushirou, OGAWA Kouhei, MITO Yuji, HAMASAKI Hiroshi, UEMORI Takeshi, YOSHIDA Fusahito

    2008 ( 46 )   55 - 56   2008.2

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  • 204 Experimental observation of elasto-plastic stress-strain responses for high tensile strength steel sheets in stress path change

    MITO Yuji, UEMORI Takeshi, HAMASAKI Hiroshi, HINO Ryutaro, NAKA Tetuo, YOSHIDA Fusahito

    2008 ( 46 )   47 - 48   2008.2

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  • 301 Prediction of Fracture for High-Tensile Steel Sheets under Stretch Bending

    KUROSE Takanori, HARADA Kohei, NAKA Tetsuo, UEMORI Takeshi, HINO Ryutaro, YOSHIDA Fusahito

    2008 ( 46 )   83 - 84   2008.2

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  • 417 Deformation of Sheet Metal Laminate Consisting of Perforated Core Sheet and Thin Skin Sheets and Its Numerical Analysis

    HIRABAYASHI Kenji, HINO Ryutaro, Uemori Takeshi, YOSHIDA Fusahito

    2008 ( 46 )   157 - 158   2008.2

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  • 320 Stress-strain behavior of austenitic stainless steel sheet subject to multi-axial pre strain

    2008 ( 46 )   121 - 122   2008.2

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  • 213 高張力鋼板の非比例二軸塑性変形挙動の実験観察とそのモデル化(変態塑性・多軸応力・多孔質,オーガナイズドセッション6.塑性挙動のモデリングとシミュレーション : ナノからマクロまで)

    上森 武, 市丸 隆志, 三登 悠司, 日野 隆太郎, 吉田 総仁

    学術講演会講演論文集   56   209 - 210   2007

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  • Experimental observations of tensile-bending deformations of 5083 Aluminum alloy sheet metal at high temperature

    UEMORI Takeshi, NAKA Testuo

    111   39 - 40   2006.10

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  • 204 Experimental observation and numerical simulation of anisotropy for high strength steel sheets under non-proportion deformation history

    ICHIMARU Takashi, MITO Yuzi, UEMORI Takeshi, NAKA Tetuo, YOSHIDA Fusahito

    2006 ( 44 )   49 - 50   2006.2

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  • 121 Anisotropy of high tensile strength steel sheet with prestrain

    KURAMITSU Toru, ICHIMARU Takashi, UEMORI Takeshi, Naka Tetsuo, YOSHIDA Fusahito

    2005 ( 43 )   41 - 42   2005.2

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  • 432 Experimental observation for the plastic deformation of 980MPa high tensile strength steel sheet in non-proportional loading and its modeling

    54   359 - 360   2005

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  • Cyclic Elasto-Plastic Deformation Behavior and Its Constitutive Model of High Tensile Strength Steel Sheets

    SAITO Hiroki, HIURA Kunihiko, KURAMITSU Toru, UEMORI Takeshi, HINO Ryutaro, YOSHIDA Fusahito

    2004 ( 42 )   117 - 118   2004.3

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  • Numerical Simulation of Cyclic Plasticity by Finite Element Crystal Plasticity Model

    HAMADA Kazuaki, YOSHIYAMA Kenji, UEMORI Takeshi, YOSHIDA Fusahito

    2004 ( 42 )   119 - 120   2004.3

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  • 726 鋼の降伏点現象を記述する弾粘塑性構成モデルと数値シミュレーション(弾(粘)塑性構成式,塑性挙動のモデリングとシミュレーション-ナノからマクロまで-,オーガナイスドセッション5,第53期学術講演会)

    吉田 総仁, 金田 裕也, 上森 武

    学術講演会講演論文集   53   488 - 489   2004

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  • Effect of Deformation Temperature and Speed on Yield Locus for 5083 Aluminum Alloy Sheet

    NAKA Tetsuo, UEMORI Takeshi, HINO Ryutaro, YOSHIDA Fusahito

    104   121 - 122   2003.4

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  • Numerical analysis and experimental observation of strip tension-leveling

    FUJIMOTO Masazumi, UEMORI Takeshi, Yoshida Fusahito

    2003 ( 41 )   13 - 14   2003.2

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  • Constitutive Model of Large-Strain Cyclic Plasticity for Orthotropically Anisotropic Materials

    YOSHIDA Fusahito, UEMORI Takeshi

    Proceedings of the ... annual meeting of JSME/MMD   2002   131 - 132   2002.10

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    This paper presents a framework of constitutive modeling of large-strain cyclic plasticity which describes both the deformation-and texture-induced anisotropies of materials. In this model, the transient Bauschinger effect is described accurately by a new equation of the backstress evolution, and the strain-range and mean-strain dependencies of cyclic strain-hardening are expressed by a model of workhardening stagnation. For the description of texture-induced anisotropy, any of widely accepted yield criteria of orthotropic anisotropy is easily incorporated into this model.

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  • Elastic-Plastic Behavior of High-Strength Steel Sheet under In-Plane Stress Reversal and Its Modeling

    UEMORI Takeshi, FUJIWARA Kenji, YOSHIDA Fusahito

    43 ( 494 )   224 - 228   2002.3

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  • Cyclic Plasticity Behavior at Large Strain for Mild Steel Sheet and Its Constitutive Modeling

    UEMORI Takeshi, FUJIWARA Kenji, OKADA Tatsuo, YOSHIDA Fusahito

    42 ( 480 )   64 - 69   2001.1

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  • Elastic-Plastic FEM Analysis of Springback in Sheet Metal Forming

    Okada Tatsuo, Uemori Takeshi, Yoshida Fusahito

    20   221 - 224   1998.2

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    This paper shows how the prediction of springback is influenced by the description of the Bauschinger effect in constitutive models. Constitutive models describing both the texture-induced anisotropy and the Bauschinger effect were derived on the basis of Hill's quadratic yield function and some kinematic hardening rules. Springback in V-bending was simulated by using the developed elastic-plastic finite element code incorporating three different types of constitutive models : (A) an isotropic hardening model, (B) a model of combined linearly kinematic hardning and isotropic hardening, (C) a model of combined linearly and non-linearly kinematic hardening and isotropic hardening. From the simulated results, it is concluded that the Bauschinger effect must be taken into account for the accurate prediction of the springback.

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Presentations

  • Effect of resin film lamination on tensile deformation characteristics of stainless steel foil

    信定宥杜, 多田直哉, 坂本惇司, 上森武

    材料とプロセス(CD-ROM)  2020 

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  • Numerical analysis for inhomogeneous compressive deformation of Multi-Layered Ceramic Capacitor block

    TAMAO Seijiro, TADA Naoya, UEMORI Takeshi, SAKAMOTO Junji

    The Proceedings of Conference of Chugoku-Shikoku Branch  2020  The Japan Society of Mechanical Engineers

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  • Crystal plastic homogenization finite element analysis of Ti-6242 alloy subjected to in-plane reverse loading

    MITSUI Kousuke, UEMORI Takeshi, TADA Naoya, SAKAMOTO Junji

    The Proceedings of Mechanical Engineering Congress, Japan  2020  The Japan Society of Mechanical Engineers

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    Language：Japanese  

    <p>To investigate effects of dislocation density on microscopic stress distribution and macroscopic stress-strain relation, we conducted crystal plastic homogenization finite element analysis of Ti-6242 alloy subjected to in-plane reverse loading with dislocation density calculation. As a result, Statistically Stored (SS) dislocation density increased with occurrence of slip deformation for all conditions. On the other hand, Geometrically Necessary (GN) dislocation density was less likely to accumulate at the interface in the parallel relationship between primary slip systems of hcp and bcc. Although GN dislocations only develop near the interface, a large increase in GN dislocation density affects the macroscopic stress-strain relation.</p>

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  • リーン型二相ステンレス鋼板の二軸応力状態下における塑性変形挙動の実験的検討

    藤田隼輔, 上森武, 多田直哉, 坂本惇司, 石丸詠一朗

    塑性加工連合講演会講演論文集  2020 

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  • Evaluation of Tensile and Bending Damages of CFRP Laminates by DC Potential Difference Method

    SATO Kazuma, TADA Naoya, UEMORI Takeshi, SAKAMOTO Junji, KOMOTO Shohei, SUZUKI Natsumi, TAKANASHI Masahiro

    The Proceedings of Conference of Chugoku-Shikoku Branch  2020  The Japan Society of Mechanical Engineers

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    Event date： 2020

    Language：Japanese  

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  • Experimental study on strength differential effect of stainless steel sheet

    柴井宏治, 上森武, 多田直哉, 坂本惇司

    材料とプロセス(CD-ROM)  2020 

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  • Evaluation of Stress Reversal Deformation Behavior of 590 MPa High Tensile Strength Steel Sheet by Using L-Bending Analysis

    上森武, 多田直哉, 坂本惇司, 中本浩聖, 西山大悟, 松村宗一郎, 成田忍

    日本材料学会学術講演会講演論文集  2020 

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  • Study on Defect Detection Method using Surface Height Change due to Low Loading

    SAKAMOTO Junji, KUNIYASU Hayato, TADA Naoya, UEMORI Takeshi

    The Proceedings of Mechanical Engineering Congress, Japan  2019  The Japan Society of Mechanical Engineers

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    Event date： 2019

    Language：Japanese  

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  • Experimental observations of cyclic plastic deformation behaviors of 590MPa class high tensile strength steel sheet and its modeling

    UEMORI Takeshi, NAKAMOTO Hiromasa, TADA Naoya, SAKAMOTO Junji

    The Proceedings of Mechanical Engineering Congress, Japan  2019  The Japan Society of Mechanical Engineers

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    Event date： 2019

    Language：Japanese  

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  • Study on Application of Direct-Current Potential Difference Method to Fatigue of Titanium Alloy Thin Wire

    TADA Naoya, TAKAGI Yusuke, SHIMADA Yuki, UEMORI Takeshi, SAKAMOTO Junji

    The Proceedings of Mechanical Engineering Congress, Japan  2019  The Japan Society of Mechanical Engineers

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    Event date： 2019

    Language：Japanese  

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  • Fatigue strength evaluation of aluminum alloy under multiaxial random vibration

    SAKAMOTO Junji, YAMADA Tomoka, TADA Naoya, UEMORI Takeshi, SHIBUTANI Tadahiro

    The Proceedings of the Materials and Mechanics Conference  2019  The Japan Society of Mechanical Engineers

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    Event date： 2019

    Language：Japanese  

    <p>Various mechanical components are subjected to random multiaxial vibration. For their safe and effective operation, it is essential to precisely evaluate the fatigue strength of the materials under multiaxial random vibration. However, the mechanisms and evaluation methods remain unclear. In this study, we performed the multiaxial random vibration experiments using aluminum alloy A5056 specimens in order to discuss a method for evaluating the vibration fatigue strength of materials. The multiaxial random vibration experiments were conducted at an acceleration input of 70 Grms within a frequency band of 10–5000 Hz under a nitrogen gas environment at a room temperature. During the multiaxial random vibration experiments the strains of the specimen were measured using 3-axis and 1-axis strain gauges and the maximum principal strains and their directions of a fracture part were estimated. Based on the results, the method for evaluating the vibration fatigue strength of materials was discussed.</p>

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  • 高延性接着剤を用いた単純重ね合わせ継手接着層の疲労強度推定

    吉田哲哉, 瀧口三千弘, 徳田太郎, 上森武, 吉田総仁

    日本接着学会年次大会講演要旨集(CD-ROM)  2017.6.5 

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    Event date： 2017.6.5

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  • 高延性接着剤を用いた金属接着板塑性曲げ加工解析の高精度化―接着層せん断変形挙動の実験結果と解析結果の違いに関する一考察―

    徳田太郎, 上森武, 吉田哲哉, 瀧口三千弘, 吉田総仁

    日本接着学会年次大会講演要旨集(CD-ROM)  2017.6.5 

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    Event date： 2017.6.5

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  • 異方性降伏関数を考慮した高延性接着積層板の有限要素解析

    上森武, 中田隼矢, 多田直哉, 東濱航平, 徳田太郎, 吉田哲哉, 瀧口三千弘

    日本接着学会年次大会講演要旨集(CD-ROM)  2016.6.3 

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    Event date： 2016.6.3

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  • 金属接着板の非対称曲げ加工

    徳田太郎, 上森武, 吉田哲也, 瀧口三千弘, 吉田総仁

    日本接着学会年次大会講演要旨集(CD-ROM)  2016.6.3 

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    Event date： 2016.6.3

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  • 圧縮とせん断荷重が同時に作用する場合の高延性接着剤の強度特性

    吉田哲哉, 徳田太郎, 上森武, 瀧口三千弘, 吉田総仁

    日本接着学会年次大会講演要旨集(CD-ROM)  2016.6.3 

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    Event date： 2016.6.3

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  • 金属接着板のハット曲げ加工

    徳田太郎, 上森武, 吉田哲哉, 瀧口三千弘, 吉田総仁

    日本接着学会年次大会講演要旨集(CD-ROM)  2015.6.5 

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    Event date： 2015.6.5

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  • 圧縮とせん断荷重が同時に作用する場合の高延性接着剤の強度特性

    吉田哲哉, 徳田太郎, 上森武, 瀧口三千弘, 吉田総仁

    日本接着学会年次大会講演要旨集(CD-ROM)  2015.6.5 

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  • 117 Polycrystalline finite element analysis of crystal orientation effect on surface roughness of pure titanium sheet

    KAKIHARA Hiroki, UEMORI Takeshi, TADA Naoya

    2015.2.27  The Japan Society of Mechanical Engineers

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    Event date： 2015.2.27

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  • 接着接合板の繰返し曲げ・曲げ戻しにおける接着層の変形挙動

    吉田哲哉, 徳田太郎, 上森武, 瀧口三千弘, 吉田総仁

    塑性加工連合講演会講演論文集  2014.9.22 

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    Event date： 2014.9.22

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  • 接着積層アルミ合金板材の有限要素解析

    上森武, 瀧口三千弘, 吉田哲哉, 徳田太郎, 吉田総仁

    塑性加工連合講演会講演論文集  2014.9.22 

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  • 複素数階偏微分法による高張力鋼板のプレス成形シミュレーション

    上森武, 吉田総仁, 三宅弘人, 瀧口三千弘, 吉田哲哉, 徳田太郎

    日本機械学会計算力学講演会論文集(CD-ROM)  2013.11.1 

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  • J042033 Spring back analysis for high tensile strength steel sheet

    OKADA Satoshi, UEMORI Takeshi, YOSHIDA Fusahito

    Mechanical Engineering Congress, Japan  2013.9.8  The Japan Society of Mechanical Engineers

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    Event date： 2013.9.8

    Language：Japanese  

    In recent years, high-tensile steel sheets (hereafter HSS) have been widely used in car products in order to satisfy high collision safety and low fuel consumption. Owing to the high yield stress, it is still difficult to predict the final shapes of HSS by using commercial finite element codes. The improvement of prediction for wrinkling, fractures and spring back have been strongly demanded. In order to satisfy the demand, a new high order yield function (we call Yoshida 2012 yield function) was introduced into the ommercial finite element code Marc 2013 in the present research. The evaluation of this yield function was conducted. From the comparisons of experiment and its calculations, it is found that the accuracy of this yield function is quite well and spring back calculation by using this function also moderate.

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  • 弾粘塑性構成方程式を用いた高延性接着剤の有限要素解析

    上森武, 徳田太郎, 吉田哲哉, 瀧口三千弘, 吉田総仁

    日本接着学会年次大会講演要旨集(CD-ROM)  2013.6.10 

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    Event date： 2013.6.10

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  • 複素数階微分法による高張力鋼板のスプリングバック解析

    岡田聡司, 吉田哲哉, 上森武, 瀧口三千弘, 徳田太郎, 吉田総仁

    塑性加工春季講演会講演論文集  2013.5.20 

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    Event date： 2013.5.20

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  • 112 Fundamental investigations for high tensile strength steel sheet

    OKADA Satoshi, YOSHIDA Fusahito, UEMORI Takeshi, HIRANO Tatsuya

    2013.2.25  The Japan Society of Mechanical Engineers

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    Event date： 2013.2.25

    Language：Japanese  

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  • 310 Finite element analysis with consideration of anisotropy yield function and Bauschinger effect

    AKAGI Hiroyuki, UEMORI Takeshi, HIRANO Tatuya, YOSHIDA Fusahito

    2012.2.28  The Japan Society of Mechanical Engineers

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    Event date： 2012.2.28

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  • 311 Numerical simulation of plastic deformation behaviors by poly crystal plastic finite element methods

    Ono Seiya, Kageyama Takahiro, Kobayashi Takumi, Kitayama Kohshiroh, Uemori Takeshi, Yoshida Fusahito

    2012.2.28  The Japan Society of Mechanical Engineers

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    Event date： 2012.2.28

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  • 101 Elasto-plasticity behavior prediction of 6000 type aluminum alloy by polycrystal plasticity theory

    Kobayashi Takumi, Kitayama Kohshiroh, Uemori Takeshi, Yoshida Fusahito

    2012.2.28  The Japan Society of Mechanical Engineers

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    Event date： 2012.2.28

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  • J041021 Constitutive modeling for stress-strain responses during stress path changes

    TAMURA Syohei, TAMURA Syohei, KAGEYAMA Takahiro, UEMORI Takeshi, YOSHIDA Fusahito

    Mechanical Engineering Congress, Japan  2011.9.11  The Japan Society of Mechanical Engineers

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    Event date： 2011.9.11

    Language：Japanese  

    It is one of the difficult problems to predict the final shape of automobile parts. In order to solve the problems, the great demands to the finite element an analysis have been needed. Especially, it demands for an accurate analysis for the multi-stamping procedures have been increasing. The present research proposes the accurate constitutive models which can deal with the stress-strain responses (the Buschinger effect and the cross effect) du ring stress path changes. The calculated results are compared with the corresponding experimental results. From the comparisons, we can conclude the developed constitutive model is effective to increase the accuracy of sheet stamping finite element calculations.

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  • 1508 Effect of punch radius for spring back in High Strength Steel Sheets under bending

    HASHIMOTO Tomoaki, NAKA Tetsuo, UEMORI Takeshi, YOSHIDA Fusahito, HINO Ryutaro, HAMASAKI Hiroshi

    2011.2.23  The Japan Society of Mechanical Engineers

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    Event date： 2011.2.23

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  • 1617 Large cyclic-plasticity behavior of austenitic stainless steel and its constitutive modeling

    KANEORI Naoki, ONO Tatsuya, HAMASAKI Hiroshi, UEMORI Takeshi, ISHIMARU Eiichiro, YOSHIDA Fusahito

    2011.2.23  The Japan Society of Mechanical Engineers

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    Event date： 2011.2.23

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  • 1608 Effect of Aspect Ratio and Direction on Mechanical Property for AZ31 Alloy Sheet

    Hosoya Taku, NAKA Tetsuo, UEMORI Takeshi, YOSHIDA Fusahito, KODU Masahide, HIGASHI Kengi

    2011.2.23  The Japan Society of Mechanical Engineers

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    Event date： 2011.2.23

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  • 1606 Numerical observation for stress-strain responsesduring non-proportional loading

    AKAGI Hiroyuki, TAMURA Syohei, UEMORI Takeshi, YOSHIDA Fusahiro

    2011.2.23  The Japan Society of Mechanical Engineers

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    Event date： 2011.2.23

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  • 1517 Accurate simulation of hole expansion process of high strength steel sheet

    TAMURA Shohei, SUZUKI Toshiya, HAMASAKI Hiroshi, UEMORI Takeshi, OKAMURA Kazuo, YOSHIDA Fusahito

    2011.2.23  The Japan Society of Mechanical Engineers

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    Event date： 2011.2.23

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  • 疲労初期段階の表面高度変化を用いた純チタンの疲労き裂発生箇所の予測の検討

    軽金属学会中国四国支部第13回講演大会講演概要集  2021.10.9 

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    Language：Japanese   Presentation type：Oral presentation (general)  

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  • Analytical Study on Evaluation of Bauschinger Effect of Aluminum Sheet by L-bending Test

    Daigo Nishiyama Takeshi, Uemori Naoya, Tada Junji Sakamoto

    2021.3.5 

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  • Effects of texture on twining deformation of AZ31 magnesium alloy

    2013.6 

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  • Bending process of laminate metal sheet with high pressure

    2013.6 

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  • Springback analysis of high tensile strength steel sheet by complex time derivative

    2013.6 

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  • Finite element analysis of high ductile adhesive bonding by using elastic viscoplastic constitutive equation

    2013.6 

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  • Experimental observations of cyclic deformation behaviors of high tensile strength steel sheet and its modeling

    2013.3 

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  • Basical study of materials

    2013.3 

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  • Finite element analysis of sheet metal forming with residual stress by leveling process

    2013.3 

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  • Elastic viscoplastic finite element analysis of high ductile adhesive bonds by using complex time derivative

    2013.3 

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  • Numerical simulations of drawing and ironing process for aluminum alloy sheet and steel sheet by Yoshida yield fucntion

    2012.11 

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  • Orientation randomization and press formability of precipitation strengthening type magnesium alloy (2th report)

    2012.11 

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  • Modeling of Bauschinger effect during stress reversal International conference

    2012.9 

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  • Evaluation of yield loci and bauschinger effect of aluminum alloy sheet metal calclurated by poly-crystal plasticity theory

    2012.6 

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  • Orientation Randamization and Press Formability of Precipitation Strengthening Type Magnesium Alloy

    2012.6 

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  • Descripiton of Anisotropic Yield Function by Linear Transformation of Stress Tensors and Its Invariants

    2012.6 

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  • Effect of anisotropic yild function on forming simulation for high strength steel sheet

    2012.6 

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  • Numerical simulation of high tensile strength steel sheet with consideration of anisotropic yield funcionss and Bauschinger effect

    2012.6 

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  • Numerical study of the yield surface and Bauschinger effect for an aluminum alloy sheet metal by poly-crystal plasticity theory

    2012.5 

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  • 応力経路が変化するバウシンガー効果のモデル化

    上森 武

    2011.5 

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  • 高張力鋼板の形状凍結性に及ぼす引張力の影響(第3報)

    橋本友彰, 上森 武

    2011.5 

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  • 鋼板のr値と流動応力の異方性を記述する降伏関数の提案

    吉田総仁, 上森 武

    2011.5 

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  • オーステナイト系ステンレス鋼の大ひずみ繰返し変形挙動とそのモデル化

    濱崎洋, 上森 武

    2011.5 

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  • オーステナイト系ステンレス鋼の大ひずみ繰返し変形挙動とそのモデル化

    兼折直樹, 上森 武

    2011.3 

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  • 高張力鋼板の穴広げ成形シミュレーションの高精度化

    田村翔平, 上森 武

    2011.3 

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  • 非比例負荷時の応力-ひずみ応答の解析

    上森 武

    2011.3 

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  • 高張力鋼板の曲げによるスプリングバックに及ぼすパンチ先端半径の影響

    橋本友彰, 上森 武

    2011 

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  • Prediction of Anisotropy and Yield Surface of Aluminium Sheet by Polycrystal Plasticity Theory International conference

    2010 

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  • Prediction of Lankford value by polycrystal plasticity theory

    2010 

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  • Springback analysis of high tensile strength steel sheet

    2010 

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  • Experimental Observation of Elasto-Plastcity Behavior of Type 5000 and 6000 Aluminium Alloy International conference

    2010 

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  • Springback Analysis of Aluminium Alloy Sheet with Special Reference to Effect of Planar anisotropy International conference

    2010 

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  • Numerical simulation of light weight porous sheet metal by homogenaization method

    2010 

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  • Experimental observations of elasto-plastic deformation behaviors of 5000 and 6000 aluminum alloy sheet metal and its modeling

    2010 

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  • Experimental observations of elasto-plastic deformation behavior of pure aluminum sheet

    2010 

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  • Numerical simulation of deformation behaviors for fcc material by polycrystal plasticity theory

    2010 

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  • Numerical simulation of cyclic stress strain responses of sheet metal based on the homogenaization method

    2010 

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  • Effect the strain path change on stress-strain responses of stainless steel sheet

    2009 

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  • Numerical simulation of elasto-plastic deformation behaviors of steel sheet by crstal plasticity

    2009 

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  • Bi-axial stretchnig and cyclic deformation bahaviors of 5000 aluminum sheet metal

    2009 

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  • Effect stress induced martensite on cyclic stress-strain responses of stainless steel sheet

    2009 

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  • Springback analysis of aluminum alloy sheet metal calculated by Yoshida-Uemori model with several yield functions

    2009 

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  • Cyclic loading tests and identification of material parameters by optimization technique

    2009 

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  • ELASTO-PLASTICITY BEHAVIOR OF HIGH STRENGTH STEEL SHEET IN BIAXIAL STRESS PATH CHANGE International conference

    2009 

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  • Plastic Deformation Behavior of High Strength Steel Sheet under Non-proportional Loading and Its Modeling International conference

    2008 

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  • FLD of AZ31 Sheet under Warm Stretching and Its Prediction International conference

    2008 

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  • A Model of Large-strain cyclic plasticity and its numerical simulation applications to springback prediction and compensation International conference

    2008 

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  • Effect yield functions for aluminum alloy sheet metal on accuracy of springback calculations

    2008 

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  • Numerical simulation of cyclic deformation behaviors of steel sheet by crystal plasticity theory

    2008 

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  • Numerical prediction of FLD of AZ31 sheet metal with deformation path changes in warm stretching

    2008 

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  • Numerical simulations at the mezo-micro region

    2008 

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  • Effect the strain rate and temperature on the FLD of AZ31 with nonproportional deformation (after bi-axial stretching)

    2008 

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  • Elasto-plastic deformation behaviors of 5000 and 6000 aluminum alloy sheet and its modeling

    2008 

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  • Effect the strain rate and temperature on the FLD of AZ31 with nonproportional deformation (after uniaxial tension test)

    2008 

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  • Numerical simulations of yield surface for BCC material by polycrystal plasticity

    2008 

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  • Stress-strain responses of stainless steel sheet after multi-axial deformation

    2008 

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  • Experimental observations of stress-strain responses of high strength steel sheet during stress path changes and its applications

    2008 

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  • Prediciton of proportional FLD of AZ31 Mg sheet metal at high temperature

    2008 

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  • Experimental observations of deformation behaviors of poros laminated materials and its numerical simulation

    2008 

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  • Prediction of limitation of deformation behaviors of high tensile strength steel sheet in stretch-bending

    2008 

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  • Experimental observation of bi-axial stretching and cyclic deformation of 5000 aluminum alloy sheet metal

    2008 

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  • Effects of strain rate, temperature and sheet thickness on yield locus of AZ31 magnesium alloy sheet International conference

    2007 

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  • Modeling of Large-Strain Cyclic Plasticity for Accurate Springback Simulation International conference

    2007 

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  • Elasto-plastic deformation behaviors of high tensile strength steel sheet under stress path changes and its modeling

    2007 

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  • Experimental observations of stress-strain response of steel sheet during strain path change

    2007 

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  • Effect of Strain Rate and Temperature on Yield Locus for AZ31 Magnesium Alloy Sheet International conference

    2007 

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  • Plastic Deformation Behavior of High Strength Steel Sheet under Non-proportional Loading and Its Modeling International conference

    2007 

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  • A Model of Anisotropic Plasticity and Its Application to Springback Simulation International conference

    2006 

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  • A model of large-strain cyclic plasticity for accurate springback analysis International conference

    2006 

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Awards

  • 西山記念賞

    2025.3   日本鉄鋼協会   薄板材のマクロ塑性構成式の研究

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  • 日本塑性加工学会論文賞

    2002  

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    Country：Japan

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  • 塑性加工学会新進賞

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  • 塑性加工学会論文賞

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Research Projects

  • Analytical study of yield point phenomena and work-hardening by dislocation accumulation modelbased on the multi-surface plasticity theory

    Grant number：23K03592  2023.04 - 2027.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    上森 武

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    Grant amount：\3120000 （ Direct expense: \2400000 、 Indirect expense：\720000 ）

    本研究は，塑性変形を発生させる主因子である転位の運動や増殖を検討可能な構成モデル，として，上降伏点発生後の応力軟化現象である降伏点現象を巨視的塑性理論にて高精度に計算する材料モデルの構築とその実験検証を目的としている．結晶塑性理論ではなく，巨視的塑性理論に注目している理由としては，塑性加工解析への適用を意識している点にある．結晶塑性理論は，結晶粒内のすべり変形（または双晶変形）を取り扱うことが可能であり，有限要素法を用いた高精度解析を実現する可能性が極めて高い手法ではあるが，現段階において巨視的塑性理論とは比べられないほど，多くの計算時間を必要とする欠点がある．また，この欠点を克服することを理論的に行うことは難しい．
    本研究で検討する材料モデルの特徴は，①応力空間中に定義する転位情報に関する曲面を利用し，②降伏点現象のみならず主な塑性変形を転位密度の発展に関係させる解析ツールの構築を行うことである．この理由としては，実際の塑性変形発現を表す転位情報の降伏点現象への適用やその後の塑性変形のメカニズム（転位が関与する加工硬化・強化機構）を加工解析への活用した例の報告が皆無であるからである．従来のマクロ塑性理論で無視されている降伏点現象，特に，リューダース伝播を考慮することで，材料に生じるミクロ組織の変化，塑性変形と転位に関する取扱いを根本的に考え直す予定である．またその記述には，有限要素法適用が簡易になるように応力空間の使用を検討している．その際には当該研究者が開発した二曲面モデルを基礎とし，その発展を考慮する予定である．

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  • Prediction of deformation localization and fracture in polycrystalline titanium alloy based on 3D measurement of ultra-small inhomogeneous deformation

    Grant number：21H01214  2021.04 - 2024.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    多田 直哉, 上森 武, 坂本 惇司

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    Grant amount：\17810000 （ Direct expense: \13700000 、 Indirect expense：\4110000 ）

    研究の初年度に当たる本年度では，3D測定レーザー顕微鏡を導入し，試験片表面における微小な変形を測定する準備をするとともに，純チタン試験片の引張に関して，既存の走査型電子顕微鏡およびデジタルホログラフィック顕微鏡も併用して試験片表面の観察を行った．本研究では，試験片に小さな引張負荷を段階的にかけながら結晶方位や応力分布を測定する薄膜試験片を用いた試験と，段階的に引張荷重をかけながら，各引張荷重を除荷した後に残留応力を測定する試験の2種類の試験を実施した．いずれも結晶粒にすべり線が発生するまで試験を実施し，微視的変形レベルにおいて弾性変形と塑性変形の関係について検討した．まず，前者の試験では，引張負荷によって生じる各結晶粒のすべりは，試験片が完全な弾性変形段階にあると見なせる小さな負荷において測定される各結晶粒の応力分布および想定されるすべり系に関するせん断応力成分と，そのすべり系の臨界分解せん断応力を用いることによりかなり高い確率で予想できることが明らかとなった．また，後者の試験からは，除荷後の各結晶粒の残留応力分布から計算できる活動すべり系のせん断応力の勾配が，発生したすべり線の方向に近い傾向にあることが明らかになった．再現性と理由については，今後，検討する予定である．
    結晶塑性有限要素法に関しては，多結晶体モデルを作成するプログラムを導入し，少結晶粒モデルに関しては解析が可能であるとの感触を得た．結晶粒数や要素分割に関する検討にはさらに時間を要すると考えられる．

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  • Springback analysis of metallic materials by yield surface taken into into consideration crystal orientation changes with plastic deformation

    Grant number：19K05099  2019.04 - 2023.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    上森 武

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    Grant amount：\3120000 （ Direct expense: \2400000 、 Indirect expense：\720000 ）

    今年度は，純アルミニウム材料に対し，任意の巨視的変形を加えた時の結晶方位変化（オイラー角回転）を高速に計算可能とするツールの検証をアルミニウム圧延解析において行った．また，同時に構築した解析ツールを用いた多結晶の降伏曲面の計算を行った．この降伏曲面の検討は，プレス成形解析で必要な降伏曲面形状の検討（異方性の有無）に必要な情報であるとともに，スプリングバック解析に必要な弾性－弾塑性変形の判定や，塑性異方性の評価に必要となるデータであるため，降伏曲面のモデリングに必要なデータとなる．
    圧延解析においては，80%圧下を受ける純アルミニウム圧延変形における結晶方位変化を安定的に計算し，有限要素法で計算不可能なTaylor方位以外の計算が得られた．この時の方位変化については，LathモデルやPancakeモデルなどに代表される圧延材料の面内せん断変形を緩和する速度勾配テンソルの緩和項の設定により制御可能であるが，その計算に必要なパラメータ設定方法や値についての最適値について検討を行う予定である．
    更に降伏曲面のモデリングについては，通常のFEM解析で私用されるfcc金属の理想方位であるCube方位，Cupper方位，Brass方位，S方位，Goss方位に加え，当該計算ツールで予測したDillamore方位も加えた計算を行っている．降伏曲面が示す弾性塑性判定や塑性ひずみ増分ベクトル方向などの予測も可能であるが，降伏曲面の凸性に大きく寄与するパラメータの調整方法を更にユーザーフレンドリーにするための検討（パラメータの物理的意味や関数に使用するパラメータ数の低減）を現在行っており，これについてはスピード感を増して行いたいと考えている．

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  • Prediction of Development of Inhomogeneous Plastic Deformation and Fracture Based on Change in Elastic Height Distribution in Polycrystalline Metals

    Grant number：18H01337  2018.04 - 2021.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    Tada Naoya

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    Grant amount：\17940000 （ Direct expense: \13800000 、 Indirect expense：\4140000 ）

    Tensile tests were carried out using plate and thin sheet specimens of polycrystalline pure titanium. Microscopic inhomogeneous deformations under elastic and plastic conditions were discussed focusing on the deformation of thin sheet specimens where the effect of interior crystal grains was week. The following resutls were obtained. Height changes at the center of grains were correlated with those near the grain boundaries. Correlation between the height changes on the front and back surfaces changed when the deformation changed from elastic to plastic. The initiation of slip lines near the notch could be predicted by slip activity.

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  • 高精度大ひずみ弾塑性材料モデルを用いた一貫成形FEMの開発とその応用

    2015.11 - 2018.03

    独立行政法人日本学術振興会  科学研究費基盤研究(C) 

    上森 武

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    Authorship：Principal investigator  Grant type：Competitive

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  • Establishment of prediction and evaluation techniques of the effect of initial residual stress in sheet metal forming process

    Grant number：25420776  2013.04 - 2016.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    Hayakawa Kunio, Sakaida Yoshihisa, Uemori Takeshi

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    Grant amount：\5330000 （ Direct expense: \4100000 、 Indirect expense：\1230000 ）

    In the present study, the effect of initial residual stress of sheet metal, which is induced by the rolling and leveling processes, on the prediction of the geometry and subsequent residual stress of the formed sheet, as well as the precise observation of surface residual stress of sheet metal is investigated.
    As a result, the precise prediction of the residual stress after forming was performed by using the high-precision constitutive equation. Furthermore, the precise observation of residual stress of the sheet metal after the leveling process by using 2-dimenisional X-ray diffraction apparatus and the comparison of the observed data with the calculated results was performed. Finally, the possibility for on-site observation of the residual stress of the sheet metal under the leveling process using the 2-dimensional X-ray diffraction apparatus was revealed.

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  • Multiscale analysis of plastic anistropy and Bauschinger effect and Its press stamping simulations

    Grant number：23760121  2011 - 2013

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (B)

    UEMORI Takeshi

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    Grant amount：\4160000 （ Direct expense: \3200000 、 Indirect expense：\960000 ）

    In order to conduct accurate finite element calculations, new constitutive equations in the mezo and macro level have been studied for three years. The developed new equations have been developed to be able to describe both plastic anisotropy of the sheet metals and the yield conditions very accurately. The results of sheet metal deformation behaviors show good agreements with the corresponding experimental data. It is also confirmed the constitutive equations can deal with the non-proportional cyclic loading history. As results of discussion with some finite element venders, these constitutive equation have been determined to introduce into some commercial finite element codes.

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  • Modeling of viscoplastic behavior of highly ductile acrylic adhesive under cyclic torsion and its application for press- forming analysis of adhesively bonded sheet metals

    Grant number：22560129  2010 - 2012

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    TAKIGUCHI Michihiro, YOSHIDA Tetsuya, TOKUDA Taro, FUNAKI Mitsuo, UEMORI Takeshi

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    Grant amount：\3640000 （ Direct expense: \2800000 、 Indirect expense：\840000 ）

    The cyclic torsion test was carried out by tubular butt-joint with highly ductile acrylic adhesive, and it was investigated the relation between shear stress and shear strain with various experimental conditions. In addition, the shear stress-strain constitutive equation was considered. And the constitutive equation was incorporated into the user subroutine of a general purpose finite element analysis program. Subsequently, the experiments and analysis of the stretch-bending/unbending and die-bending for adhesively bonded sheet metals were performed.

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  • Accurate material models and prediction of forming limits on high performance difficult-to-form sheet metals for cold and hot forming CAE

    Grant number：20360070  2008 - 2011

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    YOSHIDA Fusahito, HINO Ryutaro, UEMORI Takeshi, HAMASAKI Hiroshi

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    Grant amount：\19630000 （ Direct expense: \15100000 、 Indirect expense：\4530000 ）

    Elasto-viscoplastic material behaviors of several types of sheet metals, such as high strength steel, stainless steel, aluminum, magnesium and titanium sheets, at various temperatures were experimentally investigated. Based on the experimental observations, macro constitutive models for these metals were proposed and they have been installed into CAE code LS-DYNA. Meso-plasticity models based on the crystal plasticity theory were also proposed to discuss the effect of the texture on the anisotropy of sheet metals. Furthermore, forming limits under stretch forming, stretch bending and hole expansion were investigated, and new criteria of forming limits were newly proposed. The validity of the proposed material models and the forming limit criteria have been verified by performing sheet metal forming simulations.

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  • 高張力銅板の集合組織と異方性を表現する塑性構成モデルとその数値シミュレーション

    Grant number：17760109  2005 - 2007

    日本学術振興会  科学研究費助成事業  若手研究(B)

    上森 武

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    Grant amount：\3200000 （ Direct expense: \3200000 ）

    高張力鋼板成形技術設計開発期間の大幅な低減を実現可能とする汎用数値シミュレータを構築した.特に本研究では,高張力鋼板の二軸塑性変形挙動や面内繰返し応力反転挙動の実験挙動を非常に安定的に計測する実験手法の構築・実用化するとともに,上記変形挙動を定量的・定性的に検討することが可能な汎用FEMツールを開発・実用化した.実験に関しては,二軸引張り試験装置により高張力鋼板を代表とするプレス用鋼板の降伏曲面の取得を可能とした.また,面内繰返し反転試験によって大ひずみ域におけるプレス用板材の繰返し応力-ひずみ曲線を安定的に計測する手法の確立が出来た.更に上述プレス用板材の弾塑性変形挙動を非常に高精度に再現可能なプレス成形シミュレータを構築した.構築したシミュレータは現在,各ソフトウェアベンダーから"Yoshida-Uemoriモデル"としてその有用性が確認されている.より複雑な変形履歴を受けた鋼板の二軸変形・繰返し変形挙動の解析も行われている.解析では,上記巨視的塑性理論だけではなく,メゾミクロ領域での解析も行った.BCC結晶構造を考慮した結晶塑性有限要素法によって鋼板の面内繰返し解析,二軸引張り解析を行った.得られた結果を考慮すると,48すべり系を有するBCC金属材料の繰返し弾塑性変形挙動は(110)面の変形を中心にその変形が行われており,それを正確に記述する為には単結晶レベルでの構成式にバウシンガー効果(背応力)の考慮が必要であるという認識を得た.更に集合組織を考慮した解析結果より,初期集合組織は塑性変形進展時における流動応力値に影響を及ぼすが,バウシンガー効果には余り影響を与えない.

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  • Constitutive models of plasticity for anisotropic sheet metals for cold/warm forming and their forming simulation applications

    Grant number：15360057  2003 - 2005

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    YOSHIDA Fusahito, HINO Ryutaro, UEMORI Takeshi

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    Grant amount：\15100000 （ Direct expense: \15100000 ）

    This work deals with the constitutive modeling of plasticity and its application to sheet metal forming simulations. The summary of the research results is as follows :
    [1] Constitutive modeling
    (1) A constitutive model of large-strain cyclic plasticity, which properly describes the Bauschinger effect and cyclic hardening characteristics, as well as the anisotropy of sheet metals, Yoshida-Uemori model, has been proposed. This model has been verified by comparing the simulated results with the corresponding experimental results for deformation behavior in cyclic plasticity and bi-axial stretching tests.
    (2) A model to describe the yield-point phenomena of annealed steels has been proposed.
    (3) The effects of temperature and strain rates on the visco-plastic behavior of an aluminum alloy (A5083) and a magnesium alloy (AZ31) sheets were experimentally investigated. Based on the experimental observations, constitutive models of visco-plasticity have been presented.
    [2] Numerical simulations and process design for sheet metal forming
    (1) The above Yoshida-Uemori model has been implemented to a commercial FE code of PAM-STAMP, and using this, FE simulations of a hat-type draw-bending and S-rail forming were performed. From the results, it was found that the predictions of sheet draw-in and springback by this his model are more accurate than those calculated by a conventional model of the isotropic hardening plasticity.
    (2) A new algorithm for springback analysis taking account of the elastic deformations of dies has been proposed.
    (3) A method of springback control by optimum drawbead setting has been presented.
    (4) A criterion for fracture limits of sheet metals under stretch bending has been proposed.
    (5) Formability of adhesively-bonded sheet metals has been investigated by performing experiments and numerical simulations.
    (6) A new technology of incremental sheet-metal forming with local heating has been proposed.

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  • 弾塑性FEMによるハット曲ゲスプリングバック解析

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    Grant type：Competitive

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  • 材料・力学メタモデル構築によるスプリングバック補正プレス金型の最適設計

    独立行政法人日本学術振興会  科学研究費基盤研究(B) 

    吉田 総仁, 上森 武

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    Authorship：Principal investigator  Grant type：Competitive

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  • Springback analysis for Hat-bending by the elasto-plastic FEM

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    Grant type：Competitive

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  • 冷間鍛造部品の供用時強度評価シミュレーションの高精度化

    独立行政法人日本学術振興会  科学研究費基盤研究(C) 

    早川 邦夫, 上森 武

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    Authorship：Principal investigator  Grant type：Competitive

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  • Mechanics of Materials I （2023academic year） 1st semester  - 月1～2,水1～2

  • Materials Design （2023academic year） Prophase  - その他

  • Materials Design （2023academic year） Prophase  - その他

  • Research Works for Mechanical and Systems Engineering 1 （2023academic year） Prophase  - その他

  • Research Works for Mechanical and Systems Engineering 2 （2023academic year） Late  - その他

  • Seminar on Mechanical Engineering 1 （2023academic year） Prophase  - その他

  • Seminar on Mechanical Engineering 2 （2023academic year） Late  - その他

  • Advanced Study （2023academic year） Other  - その他

  • CAD （2023academic year） 1st and 2nd semester  - 水1～2

  • CAD （2023academic year） 1st and 2nd semester  - 金5～6

  • CAD （2023academic year） 1st and 2nd semester  - 水1～2

  • CAD （2023academic year） 1st and 2nd semester  - 水1～2

  • CAD （2023academic year） 1st and 2nd semester  - 金5～6

  • CAD （2023academic year） 1st and 2nd semester  - 金5～6

  • Basic Mechanical System Drawing （2022academic year） 1st and 2nd semester  - 木5～8

  • Basic Mechanical System Drawing （2022academic year） 1st and 2nd semester  - 木5～8

  • Basic Mechanical System Drawing （2022academic year） 1st and 2nd semester  - 木5～8

  • Engineering Plasticity （2022academic year） Fourth semester  - 月1～2

  • Seminar in Applied Solid Mechanics （2022academic year） Year-round  - その他

  • Numerical Analysis （2022academic year） Fourth semester  - 月5～7

  • Numerical Analysis （2022academic year） Fourth semester  - 月5～7

  • Mechanics of Materials I （2022academic year） 1st semester  - 月1～2,水1～2

  • Mechanics of Materials II （2022academic year） Third semester  - 月1～2,水1～2

  • Mechanics of Materials II （2022academic year） Third semester  - 月1～2,水1～2

  • Mechanics of Materials II （2022academic year） Third semester  - 月1～2,水1～2

  • Mechanics of Materials I （2022academic year） 1st semester  - 月1～2,水1～2

  • Material Design and Applications （2022academic year） Late  - 金1,金2

  • Materials Design （2022academic year） Prophase  - その他

  • Introduction to Mechanical and Systems Engineering （2022academic year） Prophase  - 金1,金2

  • Research Works for Mechanical and Systems Engineering 1 （2022academic year） Prophase  - その他

  • Research Works for Mechanical and Systems Engineering 2 （2022academic year） Late  - その他

  • CAD （2022academic year） 1st and 2nd semester  - 金5～6

  • CAD （2022academic year） 1st and 2nd semester  - 金5～6

  • Basic Mechanical System Drawing （2021academic year） 1st and 2nd semester  - 木5,木6,木7,木8

  • Basic Mechanical System Drawing （2021academic year） 1st and 2nd semester  - 木5,木6,木7,木8

  • Engineering Plasticity （2021academic year） Fourth semester  - 月1,月2

  • Engineering Plasticity （2021academic year） Fourth semester  - 月1,月2

  • Seminar in Applied Solid Mechanics （2021academic year） Year-round  - その他

  • Numerical Analysis （2021academic year） Fourth semester  - 月5,月6,月7

  • Numerical Analysis （2021academic year） Fourth semester  - 月5,月6,月7

  • Mechanics of Materials II （2021academic year） Third semester  - 月1,月2,水1,水2

  • Mechanics of Materials II （2021academic year） Third semester  - 月1,月2,水1,水2

  • Material Design and Applications （2021academic year） Late  - 金1,金2

  • Materials Design （2021academic year） Prophase  - その他

  • Research Works for Mechanical and Systems Engineering 1 （2021academic year） Prophase  - その他

  • Research Works for Mechanical and Systems Engineering 2 （2021academic year） Late  - その他

  • CAD （2021academic year） 1st and 2nd semester  - 金5,金6

  • CAD （2021academic year） 1st and 2nd semester  - 金5,金6

  • Basic Mechanical System Drawing （2020academic year） 1st and 2nd semester  - 木5,木6,木7,木8

  • Basic Mechanical System Drawing （2020academic year） 1st and 2nd semester  - 木5,木6,木7,木8

  • Engineering Plasticity （2020academic year） Fourth semester  - 月1,月2

  • Engineering Plasticity （2020academic year） Fourth semester  - 月1,月2

  • Seminar in Applied Solid Mechanics （2020academic year） Year-round  - その他

  • Numerical Analysis （2020academic year） Fourth semester  - 月5,月6,月7

  • Numerical Analysis （2020academic year） Fourth semester  - 月5,月6,月7

  • Mechanics of Materials II （2020academic year） Third semester  - 月1,月2,水1,水2

  • Mechanics of Materials II （2020academic year） Third semester  - 月1,月2,水1,水2

  • Material Design and Applications （2020academic year） Late  - 金1,金2

  • Materials Design （2020academic year） Prophase  - その他

  • Seminar for Mechanical Engineers II （2020academic year） Third semester  - 水5,水6,水7,水8

  • Seminar for Mechanical and Systems Engineers II （2020academic year） Third semester  - 水5,水6,水7,水8

  • Seminar for Mechanical and Systems Engineers II （2020academic year） Third semester  - 水5,水6,水7,水8

  • Seminar for Mechanical Engineers II （2020academic year） Third semester  - 水5,水6,水7,水8

  • Seminar for Mechanical Engineers I （2020academic year） 1st semester  - 水5,水6,水7,水8

  • Seminar for Mechanical and Systems Engineers I （2020academic year） 1st semester  - 水5,水6,水7,水8

  • Seminar for Mechanical and Systems Engineers I （2020academic year） 1st semester  - 水5,水6,水7,水8

  • Seminar for Mechanical Engineers I （2020academic year） 1st semester  - 水5,水6,水7,水8

  • Introduction to Mechanical and Systems Engineering （2020academic year） Prophase  - 金1,金2

  • Research Works for Mechanical and Systems Engineering 1 （2020academic year） Prophase  - その他

  • Research Works for Mechanical and Systems Engineering 2 （2020academic year） Late  - その他

  • CAD （2020academic year） 1st and 2nd semester  - 金5,金6

  • CAD （2020academic year） 1st and 2nd semester  - 金5,金6

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