Faculty Profiles - TADA Naoya

MISC - TADA Naoya

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Analytical Study on Influence of Mechanical Properties of Workpiece upon Formability in Spinning Process

SHIMIZU Ichiro, TADA Naoya, NAGAYAMA Noriyuki, ASO Masashi

The proceedings of the JSME annual meeting 2004 493 - 494 2004

Language：Japanese Publisher：The Japan Society of Mechanical Engineers

Mechanical properties of workpiece materials are important factors affecting the formability and the accuracy of products in metal forming processes. In the present study, an numerical simulations of the simple spinning process of metal plates were performed by using a 3D elasto-plastic finite element method, and the first attempts to clarify the influences of workpiece properties upon the spinning formability were carried out. The stress-strain relation of the workpiece material was found to affect the final dimensions of the workpiece in spinning process. This result is owing to the different strain distribution based on the different mechanical properties of the workpiece. Meanwhile, the initial thickness anisotropy of the material showed minor influences upon the strain distribution of the final shape of the workpiece.

DOI： 10.1299/jsmemecjo.2004.1.0_493

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Continuous observation of tensile deformation of polycrystalline pure titanium by scanning probe microscope

LI Yan, ABE Takeji, TADA Naoya, KANAZAWA Masanori

53 ( 7 ) 295 - 301 2003.7

Type IV Damage Evaluation of Weldments Considering the Microscopic Creep Damage Progress

TOKIYOSHI T., KAWASHIMA F., IGARI T., TOMINAGA K., TADA N.

The Thermal and nuclear power 54 ( 7 ) 758 - 765 2003.7

Study of Non-uniform Deformation during Tension of Polycrystalline Titanium and Orientation Measurement by EBSD Method

KAWAMOTO Masashi, ABE Takeji, KONDOU Ryoji, TADA Naoya, SHIMIZU Ichiro

2003 ( 41 ) 1 - 2 2003.2

Micro-Hardness Change During Tensile Plastic Deformation of Titanium

SATO Taketoshi, ABE Takeji, TADA Naoya, SHIMIZU Ichiro

2003 ( 41 ) 3 - 4 2003.2

Evaluation of Microscopic Creep Damage Progress of Heat Affected Zone of Low-Alloy Steel Welds

KAWASHIMA Fumiko, TOKIYOSHI Takumi, IGARI Toshihide, TOMINAGA Kimihiko, TADA Naoya

Proceedings of the 1992 Annual Meeting of JSME/MMD 2003 425 - 426 2003

Observation of Microscopic Inhomogeneous Behavior of Titanium During Plastic Deformation by Laser Scanning Microscope

KANAZAWA Masanori, ABE Takeji, TADA Naoya, SHIMIZU Ichiro

Proceedings of the 1992 Annual Meeting of JSME/MMD 2003 241 - 242 2003

In-Situ Observation of Thin Plate Specimen of Titanium in Tension by Thermal Stress

Kanamura Keigo, Tada Naoya, Shimizu Ichiro

Proceedings of the 1992 Annual Meeting of JSME/MMD 2003 373 - 374 2003

Language：Japanese Publisher：The Japan Society of Mechanical Engineers

In the present study, a new method of tensile test for small and/or thin specimens was proposed where tensile force was generated in the specimen by the thermal stress between the specimen and the loading plate. The basic mechanism of the method is as follows. Thin notched plate specimen was set on the loading plate and both ends of the specimen were adhered to the loading plate with quick-drying glue. As the loading plate has much higher linear expansion coefficient than the specimen, tensile stress was generated in the specimen with simultaneous heating of the specimen and the loading plate. A strain gauge was also glued on the loading plate in order to evaluate the load acting on the specimen. As all devices can be set on the stage of a microscope, in-situ observation of the plate specimen during tension was realized.

DOI： 10.1299/jsmezairiki.2003.0_373

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Cyclic Tension of Pure Copper Using Small Plate Specimen

Isaki Masaya, Tada Naoya, Abe Takeji

2002 ( 40 ) 47 - 48 2002.2

Non-Destructive Evaluation of a Semi-Elliptical Surface Crack by DC-EPM with Multiple-Type Probe

Okada Masayoshi, Tada Naoya

2002 ( 40 ) 49 - 50 2002.2

Observation of Cyclic Plastic Deformation of Polycrystalline Copper by Laser Scanning Microscope

KANZAKI Norihisa, ABE Takeji, TADA Naoya, SHIMIZU Ichiro

2002 ( 40 ) 127 - 128 2002.2

Observation of Microscopic Deformation Behavior of Polycrystalline Iron During Plastic Deformation

NAKAYAMA Yoshihisa, ABE Takeji, TOMOSADA Satoshi, KONDOU Ryouji, TADA Naoya, SHIMIZU Ichiro

2002 ( 40 ) 101 - 102 2002.2

Change in Surface Profile during Uniaxial Tension of Polycrystalline Aluminum

WANG Xiaoqun, ABE Takeji, TADA Naoya, SHIMIZU Ichiro

2002 ( 40 ) 97 - 98 2002.2

313 プローブ顕微鏡による多結晶チタンの塑性変形の微視的連続観察

李炎, 阿部武治, 多田直哉, 金沢雅典

講演論文集 2002 ( 40 ) 99 - 100 2002.2

Estimation of Plastic Strain of Grains in Tensile Plastic Deformation of Polycrystalline Copper by Image Processing and EBSD method

KONDOU Ryouji, ABE Takeji, TADA Naoya

Proceedings of the 1992 Annual Meeting of JSME/MMD 2002 37 - 38 2002

SPM Observation of Plastic Deformation during Uniaxial Tension of Polycrystalline Titanium

Li Yan, Abe Takeji, Tada Naoya

Proceedings of the 1992 Annual Meeting of JSME/MMD 2002 637 - 638 2002

電位差法による欠陥および材質の非破壊評価

多田直哉

非破壊検査 51 ( 5 ) 258 - 264 2002

Change in Microscopic Surface Profile during Tensile Plastic Deformation of Polycrystalline Aluminum

WANG Xiao qun, ABE Takeji, TADA Naoya, SHIMIZU Ichiro

Proceedings of the 1992 Annual Meeting of JSME/MMD 2002 383 - 384 2002

Non-Destructive Evaluation of Location, Size and Angle of a Semi-Elliptical Surface Crack by DC-PDM with Multiple-Type Probe

TADA Naoya, OKADA Masayoshi

Proceedings of the 1992 Annual Meeting of JSME/MMD 2002 499 - 500 2002

Estimation on Active Slip Plane during Tensile Plastic Deformation of Polycrystalline Copper by EBSD Method

KONDOU Ryouji, ABE Takeji, TADA Naoya, SHIMIZU Ichiro

Proceedings of the 1992 Annual Meeting of JSME/MMD 2002 35 - 36 2002

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