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Proceedings Papers

Prediction of Collapse Load Reduction due to Non-Aligned Multiple Flaws

Fuminori Iwamatsu, Katsumasa Miyazaki, Koichi Saito

Proc. ASME. PVP2020, Volume 1: Codes and Standards, V001T01A055, August 3, 2020

Paper No: PVP2020-21806

DOI: https://doi.org/10.1115/PVP2020-21806

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Topics: Collapse, Stress, Fracture (Materials), Fracture (Process), Finite element analysis, Fitness-for-service, Ductile fracture, Flat plates, ASME Boiler and Pressure Vessel Code, Boilers

Proceedings Papers

Limit Load Solution of Non-Aligned Multiple Flaws

Fuminori Iwamatsu, Katsumasa Miyazaki, Koichi Saito

Proc. ASME. PVP2018, Volume 1A: Codes and Standards, V01AT01A008, July 15–20, 2018

Paper No: PVP2018-84809

DOI: https://doi.org/10.1115/PVP2018-84809

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Topics: Stress, Collapse, Finite element analysis, Fracture (Materials), Fracture (Process), Power stations, Boilers, Evaluation methods, Experimental methods, Fitness-for-service

Journal Articles

Development of Stress Intensity Factors for Subsurface Flaws in Plates Subjected to Polynomial Stress Distributions

Kai Lu, Mano Akihiro, Jinya Katsuyama, Yinsheng Li, Fuminori Iwamatsu

J. Pressure Vessel Technol. June 2018, 140(3): 031201.

Paper No: PVT-17-1095

DOI: https://doi.org/10.1115/1.4039125

Published Online: April 18, 2018

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Topics: Finite element analysis, Polynomials, Stress, Flat plates, Stress concentration

Proceedings Papers

Fracture Tests of Flat Plate and Pipe With Non-Aligned Multiple Flaws

Fuminori Iwamatsu, Katsumasa Miyazaki, Koichi Saito

Proc. ASME. PVP2017, Volume 1A: Codes and Standards, V01AT01A008, July 16–20, 2017

Paper No: PVP2017-66169

DOI: https://doi.org/10.1115/PVP2017-66169

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Topics: Flat plates, Fracture (Materials), Fracture (Process), Pipes, Ductile fracture, Stress, Evaluation methods, Boilers, Collapse, Displacement

Proceedings Papers

Stress Intensity Factor Solutions for Subsurface Flaws in Plates Subjected to Polynomial Stress Distributions

Kai Lu, Jinya Katsuyama, Yinsheng Li, Fuminori Iwamatsu

Proc. ASME. PVP2016, Volume 1A: Codes and Standards, V01AT01A013, July 17–21, 2016

Paper No: PVP2016-63479

DOI: https://doi.org/10.1115/PVP2016-63479

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Topics: Plates (structures), Polynomials, Stress, Engineering systems and industry applications, Finite element analysis, Wall thickness

Proceedings Papers

Applicability of Stress Intensity Factor Solution for Flat Plate to Nozzle Crotch Corner Flaw

Fuminori Iwamatsu, Katsumasa Miyazaki, Minoru Masuda, Fumihito Hirokawa

Proc. ASME. PVP2016, Volume 1B: Codes and Standards, V01BT01A005, July 17–21, 2016

Paper No: PVP2016-63821

DOI: https://doi.org/10.1115/PVP2016-63821

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Topics: Corners (Structural elements), Flat plates, Nozzles, Stress, Finite element methods, Fracture mechanics, Fitness-for-service, ASME Boiler and Pressure Vessel Code, Cylinders, Fatigue

Proceedings Papers

Defect Tolerance Assessment for ABWR Nozzle Crotch Corner

Fumihito Hirokawa, Masaaki Hayashi, Minoru Masuda, Yasuhiro Mabuchi, Yukinori Yamamoto, Fuminori Iwamatsu, Katsumasa Miyazaki, David Johnson

Proc. ASME. PVP2016, Volume 1B: Codes and Standards, V01BT01A006, July 17–21, 2016

Paper No: PVP2016-63823

DOI: https://doi.org/10.1115/PVP2016-63823

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Topics: Corners (Structural elements), Nozzles, Bending (Stress), Stress, Boiling water reactors, Collapse, Fatigue cracks, Finite element analysis, Metalwork, Nuclear industry

Proceedings Papers

Evaluation of Arbitrary 3-D Crack Growth Behavior Under Residual Stress in Butt-Welded Pipe

Fuminori Iwamatsu

Proc. ASME. PVP2015, Volume 6A: Materials and Fabrication, V06AT06A073, July 19–23, 2015

Paper No: PVP2015-45093

DOI: https://doi.org/10.1115/PVP2015-45093

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Topics: Fracture (Materials), Pipes, Stress, Shapes, Finite element analysis, Heat, Stress corrosion cracking, Computer software, Crack propagation, Fitness-for-service

Journal Articles

Estimation of Stress Corrosion Cracking Growth Behavior Under Weld Residual Stress in the Bottom of a Reactor Pressure Vessel by Finite Element Analysis

Fuminori Iwamatsu, Katsumasa Miyazaki, Masahito Mochizuki

J. Pressure Vessel Technol. August 2015, 137(4): 041402.

Paper No: PVT-13-1073

DOI: https://doi.org/10.1115/1.4029256

Published Online: August 1, 2015

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Topics: Finite element analysis, Fracture (Materials), Stress, Shapes, Stress concentration

Journal Articles

Simulation of Stress Corrosion Cracking in In-Core Monitor Housing of Nuclear Power Plant

Yuichi Shintaku, Fuminori Iwamatsu, Kazuhiro Suga, Yoshitaka Wada, Masanori Kikuchi

J. Pressure Vessel Technol. August 2015, 137(4): 041401.

Paper No: PVT-13-1054

DOI: https://doi.org/10.1115/1.4028735

Published Online: August 1, 2015

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Topics: Fracture (Materials), Stress

Proceedings Papers

Simplified Limit Load Analysis for Multiple Circumferential Flaws in a Pipe

Fuminori Iwamatsu, Koichi Saito

Proc. ASME. PVP2014, Volume 1: Codes and Standards, V001T01A059, July 20–24, 2014

Paper No: PVP2014-28568

DOI: https://doi.org/10.1115/PVP2014-28568

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Topics: Pipes, Stress, Bending (Stress), Collapse, ASME Boiler and Pressure Vessel Code, Fitness-for-service, Stress corrosion cracking

Proceedings Papers

Evaluation of Ductile Fracture Behavior Using GTN Model

Hidekazu Takazawa, Fuminori Iwamatsu, Katsumasa Miyazaki

Proc. ASME. PVP2014, Volume 1: Codes and Standards, V001T01A060, July 20–24, 2014

Paper No: PVP2014-28892

DOI: https://doi.org/10.1115/PVP2014-28892

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Topics: Ductile fracture, Stress, Displacement, Materials properties, Finite element analysis, Flat plates, Theorems (Mathematics)

Proceedings Papers

Application of Stress Intensity Factors for Deep Surface Cracks to Crack Growth Evaluation

Fuminori Iwamatsu, Katsumasa Miyazaki, Hajime Miyata, Hideki Yuya

Proc. ASME. PVP2013, Volume 1A: Codes and Standards, V01AT01A003, July 14–18, 2013

Paper No: PVP2013-97465

DOI: https://doi.org/10.1115/PVP2013-97465

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Topics: Fracture (Materials), Stress, Surface cracks, Finite element analysis, JSME Standards, Fitness-for-service, Nuclear power stations, Alloys, ASME Boiler and Pressure Vessel Code, Japan Society of Mechanical Engineers

Proceedings Papers

Evaluation Procedure of Limit Load for Non-Aligned Multiple Flaws

Fuminori Iwamatsu, Katsumasa Miyazaki, Hidekazu Takazawa, Koichi Saito

Proc. ASME. PVP2013, Volume 1A: Codes and Standards, V01AT01A062, July 14–18, 2013

Paper No: PVP2013-97466

DOI: https://doi.org/10.1115/PVP2013-97466

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Topics: Stress, Collapse, Fracture (Materials), Fracture (Process), ASME Boiler and Pressure Vessel Code, Ductile fracture, Fitness-for-service, Flat plates

Proceedings Papers

Estimation of SCC Crack Growth Behavior Under Weld Residual Stress in the Bottom of a Reactor Pressure Vessel by Finite Element Analysis

Fuminori Iwamatsu, Katsumasa Miyazaki, Masahito Mochizuki

Proc. ASME. PVP2012, Volume 6: Materials and Fabrication, Parts A and B, 703-709, July 15–19, 2012

Paper No: PVP2012-78471

DOI: https://doi.org/10.1115/PVP2012-78471

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Topics: Finite element analysis, Fracture (Materials), Reactor vessels, Stress, Shapes, Modeling, Crack propagation, Metals, Stress concentration, Stress corrosion cracking

Proceedings Papers

Simulation of Stress Corrosion Cracking in ICM Housing of Nuclear Power Plant

Masanori Kikuchi, Yoshitaka Wada, Kazuhiro Suga, Fuminori Iwamatsu, Yuichi Shintaku

Proc. ASME. PVP2012, Volume 1: Codes and Standards, 361-368, July 15–19, 2012

Paper No: PVP2012-78264

DOI: https://doi.org/10.1115/PVP2012-78264

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Topics: Nuclear power stations, Simulation, Stress corrosion cracking, Stress, Fracture (Materials), Finite element methods, Finite element model, Surface cracks, Heat, Pressure vessels

Proceedings Papers

Fracture Assessment of Pipes Having Multiple Flaws Based on Ramberg–Osgood-Type Stress–Strain Relationships

Hideo Machida, Tetsuya Hamanaka, Yoshiaki Takahashi, Katsumasa Miyazaki, Fuminori Iwamatsu, Koichi Saito, Masao Itatani, Chihiro Narazaki, Kiminobu Hojo

Proc. ASME. PVP2011, Volume 1: Codes and Standards, 487-493, July 17–21, 2011

Paper No: PVP2011-57859

DOI: https://doi.org/10.1115/PVP2011-57859

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Topics: Fracture (Materials), Pipes, Stress-strain relations, Fracture toughness, Stress, Stress concentration, Fitness-for-service, Flow (Dynamics), Stress-strain curves, Ductility

Proceedings Papers

Experimental Study on the Flaw Characterization of Multiple Flaws for Ductile Fracture

Fuminori Iwamatsu, Katsumasa Miyazaki, Koichi Saito, Tetsuya Hamanaka, Yoshiaki Takahashi

Proc. ASME. PVP2011, Volume 1: Codes and Standards, 495-501, July 17–21, 2011

Paper No: PVP2011-57875

DOI: https://doi.org/10.1115/PVP2011-57875

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Topics: Ductile fracture, Flat plates, Fitness-for-service, Fracture (Materials), Fracture (Process), Machinery, Collapse, Electric discharge, Stainless steel, Stress

Proceedings Papers

Estimation of Maximum Load for Pipes With Multiple Circumferential Flaws by Limit Load Analysis

Fuminori Iwamatsu, Katsumasa Miyazaki, Koichi Saito, Tetsuya Hamanaka, Yoshiaki Takahashi

Proc. ASME. PVP2011, Volume 1: Codes and Standards, 503-510, July 17–21, 2011

Paper No: PVP2011-57876

DOI: https://doi.org/10.1115/PVP2011-57876

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Topics: Pipes, Stress, Flow (Dynamics), Japan Society of Mechanical Engineers, ASME Standards, Failure, Stainless steel, Stress corrosion cracking

Proceedings Papers

SCC Test Verification of Effect of Moving Heat Source on FEM Evaluation for Weld Residual Stress of Butt-Weld Pipe

Fuminori Iwamatsu, Satoru Aoike, Yuka Fukuda, Osamu Saitou

Proc. ASME. PVP2009, Volume 6: Materials and Fabrication, Parts A and B, 1141-1147, July 26–30, 2009

Paper No: PVP2009-77897

DOI: https://doi.org/10.1115/PVP2009-77897

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Topics: Finite element methods, Heat, Pipes, Stress, Welding, Boiling water reactors, Boiling, Carbon, Computation, Magnesium (Metal)

Journal citation

NARROW

Prediction of Collapse Load Reduction due to Non-Aligned Multiple Flaws

Limit Load Solution of Non-Aligned Multiple Flaws

Development of Stress Intensity Factors for Subsurface Flaws in Plates Subjected to Polynomial Stress Distributions

Fracture Tests of Flat Plate and Pipe With Non-Aligned Multiple Flaws

Stress Intensity Factor Solutions for Subsurface Flaws in Plates Subjected to Polynomial Stress Distributions

Applicability of Stress Intensity Factor Solution for Flat Plate to Nozzle Crotch Corner Flaw

Defect Tolerance Assessment for ABWR Nozzle Crotch Corner

Evaluation of Arbitrary 3-D Crack Growth Behavior Under Residual Stress in Butt-Welded Pipe

Estimation of Stress Corrosion Cracking Growth Behavior Under Weld Residual Stress in the Bottom of a Reactor Pressure Vessel by Finite Element Analysis

Simulation of Stress Corrosion Cracking in In-Core Monitor Housing of Nuclear Power Plant

Simplified Limit Load Analysis for Multiple Circumferential Flaws in a Pipe

Evaluation of Ductile Fracture Behavior Using GTN Model

Application of Stress Intensity Factors for Deep Surface Cracks to Crack Growth Evaluation

Evaluation Procedure of Limit Load for Non-Aligned Multiple Flaws

Estimation of SCC Crack Growth Behavior Under Weld Residual Stress in the Bottom of a Reactor Pressure Vessel by Finite Element Analysis

Simulation of Stress Corrosion Cracking in ICM Housing of Nuclear Power Plant

Fracture Assessment of Pipes Having Multiple Flaws Based on Ramberg–Osgood-Type Stress–Strain Relationships

Experimental Study on the Flaw Characterization of Multiple Flaws for Ductile Fracture

Estimation of Maximum Load for Pipes With Multiple Circumferential Flaws by Limit Load Analysis

SCC Test Verification of Effect of Moving Heat Source on FEM Evaluation for Weld Residual Stress of Butt-Weld Pipe

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