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Journal Articles

Stability of Allowable Flaw Angles for High Toughness Ductile Pipes Subjected to Bending Stress in the ASME Code Section XI

Kunio Hasegawa, Bohumír Strnadel, Yinsheng Li, Valéry Lacroix
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. December 2022, 144(6): 061202.
Paper No: PVT-22-1001
https://doi.org/10.1115/1.4054620
Published Online: June 10, 2022
View Article titled, Stability of Allowable Flaw Angles for High Toughness Ductile Pipes Subjected to Bending Stress in the ASME Code Section XI
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Topics: ASME Standards, Bending (Stress), Collapse, Pipes, Stability, Stress, Fracture toughness
Journal Articles

Allowable Cracks Related to Penetration for Part-Through Cracks in Pipes Subjected to Bending Stresses

Kunio Hasegawa, Yinsheng Li, Bohumír Strnadel, Anees Udyawar
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. October 2022, 144(5): 051305.
Paper No: PVT-21-1175
https://doi.org/10.1115/1.4053482
Published Online: February 14, 2022
View Article titled, Allowable Cracks Related to Penetration for Part-Through Cracks in Pipes Subjected to Bending Stresses
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Topics: Fracture (Materials), Pipes, Stress, Collapse
Journal Articles

Fully Plastic Failure Stresses and Allowable Crack Sizes for Circumferentially Surface-Cracked Pipes Subjected to Tensile Loading

Kunio Hasegawa, David Dvořák, Vratislav Mareš, Bohumir Strnadel, Yinsheng Li
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. February 2022, 144(1): 011303.
Paper No: PVT-20-1284
https://doi.org/10.1115/1.4050321
Published Online: August 4, 2021
View Article titled, Fully Plastic Failure Stresses and Allowable Crack Sizes for Circumferentially Surface-Cracked Pipes Subjected to Tensile Loading
Open the PDF for Fully Plastic Failure Stresses and Allowable Crack Sizes for Circumferentially Surface-Cracked Pipes Subjected to Tensile Loading in another window
Topics: Failure, Fracture (Materials), Pipes, Stress, Tension
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
Open the PDF for 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 in another window
Topics: Fatigue cracks, Fitness-for-service, Stress, Steel
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

Plastic Collapse Stresses Based on Flaw Combination Rules for Pipes Containing Two Circumferential Similar Flaws

Kunio Hasegawa, Yinsheng Li, Yun-Jae Kim, Valery Lacroix, Bohumir Strnadel
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. June 2019, 141(3): 031201.
Paper No: PVT-18-1145
https://doi.org/10.1115/1.4042991
Published Online: March 21, 2019
View Article titled, Plastic Collapse Stresses Based on Flaw Combination Rules for Pipes Containing Two Circumferential Similar Flaws
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Topics: Collapse, Pipes, Stress
Proceedings Papers

Definition of Fatigue Crack Growth Thresholds for Ferritic Steels in Fitness-for-Service Codes

Kunio Hasegawa, Bohumir Strnadel
Proc. ASME. PVP2018, Volume 1A: Codes and Standards, V01AT01A009, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84940
https://doi.org/10.1115/PVP2018-84940
View Paper titled, Definition of Fatigue Crack Growth Thresholds for Ferritic Steels in Fitness-for-Service Codes
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Topics: Fatigue cracks, Fitness-for-service, Steel, Stress, ASME Standards, Fatigue testing, Fracture (Materials), Structural elements (Construction)
Proceedings Papers

Alternative Characterization Rules for Multiple Surface Planar Flaws

Pierre Dulieu, Valéry Lacroix, Kunio Hasegawa, Yinsheng Li, Bohumir Strnadel
Proc. ASME. PVP2018, Volume 1A: Codes and Standards, V01AT01A053, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84960
https://doi.org/10.1115/PVP2018-84960
View Paper titled, Alternative Characterization Rules for Multiple Surface Planar Flaws
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Topics: Engineering simulation, Fitness-for-service, Pressure, Simulation
Proceedings Papers

Plastic Collapse Stresses for Pipes With Circumferential Twin Flaws Using Combination Rules

Kunio Hasegawa, Yinsheng Li, Yun-Jae Kim, Valery Lacroix, Bohumir Strnadel
Proc. ASME. PVP2018, Volume 1A: Codes and Standards, V01AT01A047, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84019
https://doi.org/10.1115/PVP2018-84019
View Paper titled, Plastic Collapse Stresses for Pipes With Circumferential Twin Flaws Using Combination Rules
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Topics: Collapse, Pipes, Stress, Fitness-for-service, Bending (Stress), Japan Society of Mechanical Engineers, Stainless steel
Journal Articles

Stress Intensity Factors for Transformed Surface Flaws and Remaining Fatigue Lives Based on Flaw-to-Surface Proximity Rules

Kunio Hasegawa, Bohumir Strnadel, Yinsheng Li, Valery Lacroix
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. October 2018, 140(5): 051204.
Paper No: PVT-18-1016
https://doi.org/10.1115/1.4040640
Published Online: August 2, 2018
View Article titled, Stress Intensity Factors for Transformed Surface Flaws and Remaining Fatigue Lives Based on Flaw-to-Surface Proximity Rules
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Topics: Fatigue, Stress, Fitness-for-service, Fatigue cracks
Journal Articles

Recharacterization of Subsurface Flaw to Surface Flaw Based on Equivalent Fatigue Crack Growth Rate

Valery Lacroix, Yinsheng Li, Bohumir Strnadel, Kunio Hasegawa
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Expert View
J. Pressure Vessel Technol. April 2016, 138(2): 024701.
Paper No: PVT-15-1073
https://doi.org/10.1115/1.4031723
Published Online: November 19, 2015
View Article titled, Recharacterization of Subsurface Flaw to Surface Flaw Based on Equivalent Fatigue Crack Growth Rate
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Topics: Fatigue cracks, Stress, Fitness-for-service, Fracture (Materials)
Proceedings Papers

Re-Characterization of Subsurface Flaw to Surface Flaw Based on Equivalent Fatigue Crack Growth Rate

Kunio Hasegawa, Yinsheng Li, Valery Lacroix, Bohumir Strnadel
Proc. ASME. PVP2015, Volume 1B: Codes and Standards, V01BT01A022, July 19–23, 2015
Publisher: American Society of Mechanical Engineers
Paper No: PVP2015-45946
https://doi.org/10.1115/PVP2015-45946
View Paper titled, Re-Characterization of Subsurface Flaw to Surface Flaw Based on Equivalent Fatigue Crack Growth Rate
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Topics: Fatigue cracks, Fitness-for-service, Stress
Proceedings Papers

The Size Effect in Tensile Test of Steels

Bohumír Strnadel, Jan Brumek
Proc. ASME. PVP2013, Volume 6B: Materials and Fabrication, V06BT06A058, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-98162
https://doi.org/10.1115/PVP2013-98162
View Paper titled, The Size Effect in Tensile Test of Steels
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Topics: Size effect, Steel, Elongation, Damage, Ductility, Failure, Nucleation (Physics), Tensile strength, Computation, Gages
Proceedings Papers

The Model of Fatigue Crack Growth in High Pressure Cylinder Wall

Jan Brumek, Bohumir Strnadel, Ivo Dlouhy´
Proc. ASME. PVP2010, ASME 2010 Pressure Vessels and Piping Conference: Volume 5, 635-639, July 18–22, 2010
Publisher: American Society of Mechanical Engineers
Paper No: PVP2010-26010
https://doi.org/10.1115/PVP2010-26010
View Paper titled, The Model of Fatigue Crack Growth in High Pressure Cylinder Wall
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Topics: Fatigue cracks, Gas cylinders, Fracture (Materials), Stress, Finite element model, Fatigue, Fatigue testing, Fracture mechanics, High strength steel, Pressure
Proceedings Papers

Modification of Leak Before Break Criterion With Focus on the Residual Stress

Katerina Macurova, Richard Tichy, Bohumir Strnadel
Proc. ASME. PVP2010, ASME 2010 Pressure Vessels and Piping Conference: Volume 5, 647-652, July 18–22, 2010
Publisher: American Society of Mechanical Engineers
Paper No: PVP2010-26020
https://doi.org/10.1115/PVP2010-26020
View Paper titled, Modification of Leak Before Break Criterion With Focus on the Residual Stress
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Topics: Leak-before-break, Stress, Vessels, Drilling, Computer simulation, Computer software, Design, Extruding, Fracture (Materials), Hoop stress