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Yasuhiro Ohtake
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Proceedings Papers

Residual Stress Evaluation of Hydraulically Expanded Tube-to-Tubesheet Joint

Yoshihiro Otani, Yohei Sakakibara, Mitsuyoshi Tsunori, Yasuhiro Ohtake, Nobuyuki Shutto
Proc. ASME. PVP2012, Volume 3: Design and Analysis, 727-735, July 15–19, 2012
Publisher: American Society of Mechanical Engineers
Paper No: PVP2012-78084
https://doi.org/10.1115/PVP2012-78084
View Paper titled, Residual Stress Evaluation of Hydraulically Expanded Tube-to-Tubesheet Joint
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Topics: Stress, Alloys, Boilers, Finite element analysis, Finite element methods, Finite element model, Friction, Heat exchangers, Nickel, Steel
Proceedings Papers

Evaluation Criteria for Alternating Loads Based on Partial Inelastic Analyses

Asao Okamoto, Yasuhiro Ohtake, Norimichi Yamashita
Proc. ASME. PVP2002, Pressure Vessel and Piping Codes and Standards, 57-64, August 5–9, 2002
Publisher: American Society of Mechanical Engineers
Paper No: PVP2002-1222
https://doi.org/10.1115/PVP2002-1222
View Paper titled, Evaluation Criteria for Alternating Loads Based on Partial Inelastic Analyses
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Topics: Inelastic analysis, Stress, Collapse, Finite element analysis, Design, Elastic analysis, Evaluation methods, Stress analysis (Engineering)
Proceedings Papers

Effects of Peak Strain on Collapse Load Assessment

Asao Okamoto, Yasuhiro Ohtake, Isoharu Nishiguchi, Mitsuru Aoki
Proc. ASME. PVP2003, Pressure Vessel and Piping Codes and Standards, 3-10, July 20–24, 2003
Publisher: American Society of Mechanical Engineers
Paper No: PVP2003-1765
https://doi.org/10.1115/PVP2003-1765
View Paper titled, Effects of Peak Strain on Collapse Load Assessment
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Topics: Collapse, Stress, Displacement, Finite element analysis, Disks, Hinges, Modeling, Plastics, Shapes
Journal Articles

Simplified Elastic-Plastic Analysis Method Using K e Factors Obtained for the Real Structural Model

Asao Okamoto, Yasuhiro Ohtake
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Technical Papers
J. Pressure Vessel Technol. February 2003, 125(1): 59–64.
https://doi.org/10.1115/1.1522416
Published Online: January 31, 2003
View Article titled, Simplified Elastic-Plastic Analysis Method Using K e Factors Obtained for the Real Structural Model
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Topics: ASME Standards, Design, Finite element analysis, Nozzles, Stress, Cycles, Yield point, Structural elements (Construction), Thermal stresses, Stress-strain curves