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Saburo Usami
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Journal Articles

A Review of Fatigue Crack Growth Thresholds for Metals in Fitness-for-Service Codes: On the Uncertainty of Using the Thresholds at Negative Stress Ratios

Kunio Hasegawa, Bohumir Strnadel, Vratislav Mareš, David Dvořák, Saburo Usami
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. February 2022, 144(1): 011201.
Paper No: PVT-21-1001
https://doi.org/10.1115/1.4050773
Published Online: August 4, 2021
View Article titled, A Review of Fatigue Crack Growth Thresholds for Metals in Fitness-for-Service Codes: On the Uncertainty of Using the Thresholds at Negative Stress Ratios
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Topics: Fatigue cracks, Fitness-for-service, Stress, Steel
Proceedings Papers

Consideration on Fatigue Crack Growth Thresholds Under Negative Stress Ratio

Kunio Hasegawa, Saburo Usami, Valery Lacroix
Proc. ASME. PVP2019, Volume 1: Codes and Standards, V001T01A004, July 14–19, 2019
Publisher: American Society of Mechanical Engineers
Paper No: PVP2019-93870
https://doi.org/10.1115/PVP2019-93870
View Paper titled, Consideration on Fatigue Crack Growth Thresholds Under Negative Stress Ratio
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Topics: Fatigue cracks, Stress, Fitness-for-service, ASTM International, Fracture (Materials), Testing
Journal Articles

Fatigue Crack Growth Thresholds at Negative Stress Ratio for Ferritic Steels in ASME Code Section XI

Kunio Hasegawa, Bohumir Strnadel, Saburo Usami, Valery Lacroix
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. June 2019, 141(3): 031101.
Paper No: PVT-19-1001
https://doi.org/10.1115/1.4043081
Published Online: April 4, 2019
View Article titled, Fatigue Crack Growth Thresholds at Negative Stress Ratio for Ferritic Steels in ASME Code Section XI
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Topics: ASME Standards, Fatigue cracks, Fracture (Materials), Steel, Stress
Journal Articles

Development of Fatigue Crack Growth Thresholds for Austenitic Stainless Steels Exposed to Air Environment for ASME Code Section XI

Kunio Hasegawa, Saburo Usami
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Technical Briefs
J. Pressure Vessel Technol. June 2018, 140(3): 034501.
Paper No: PVT-17-1180
https://doi.org/10.1115/1.4039207
Published Online: April 4, 2018
View Article titled, Development of Fatigue Crack Growth Thresholds for Austenitic Stainless Steels Exposed to Air Environment for ASME Code Section XI
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Topics: Fatigue cracks, Stainless steel, ASME Standards, High temperature, Temperature, Fitness-for-service, Fracture (Materials)
Proceedings Papers

Technical Basis of Fatigue Crack Growth Threshold for Stainless Steel in Air Environment for ASME Code Section XI

Kunio Hasegawa, Saburo Usami
Proc. ASME. PVP2017, Volume 1A: Codes and Standards, V01AT01A009, July 16–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: PVP2017-66205
https://doi.org/10.1115/PVP2017-66205
View Paper titled, Technical Basis of Fatigue Crack Growth Threshold for Stainless Steel in Air Environment for ASME Code Section XI
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Topics: ASME Standards, Fatigue cracks, Stainless steel, Fitness-for-service, Fracture (Materials), High temperature, Mechanical engineers, Stress, Structural elements (Construction)
Proceedings Papers

Main Surface Crack Propagation and Crack Initiation and Propagation on Counter Plain Surface Under Cyclic Bending

Jin’ichiro Gotoh, Saburo Usami, Hiroshi Morita
Proc. ASME. PVP2004, Pressure Vessel and Piping Codes and Standards, 373-378, July 25–29, 2004
Publisher: American Society of Mechanical Engineers
Paper No: PVP2004-2715
https://doi.org/10.1115/PVP2004-2715
View Paper titled, Main Surface Crack Propagation and Crack Initiation and Propagation on Counter Plain Surface Under Cyclic Bending
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Topics: Fracture (Materials), Surface cracks, Crack propagation, Stress, Finite element analysis, Numerical analysis, Tension