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Yasuhito Imai
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Proceedings Papers

Development of Earthquake-Resistance Evaluation Method for Composite-Repaired Pipelines Considering Interface Delamination

Hikaru Yamaguchi, Masaki Mitsuya, Yasuhito Imai, Mitsuru Ohata
Proc. ASME. IPC2024, Volume 2A: Pipeline and Facilities Integrity, V02AT03A019, September 23–27, 2024
Publisher: American Society of Mechanical Engineers
Paper No: IPC2024-132803
https://doi.org/10.1115/IPC2024-132803
View Paper titled, Development of Earthquake-Resistance Evaluation Method for Composite-Repaired Pipelines Considering Interface Delamination
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Topics: Composite materials, Delamination, Earthquake resistant design, Evaluation methods, Maintenance, Pipelines
Proceedings Papers

Critical Strain in Carbon Steel Pipes With Local Wall Thinning Subjected to Large Bending in Soil Liquefaction-Induced Lateral Spreading

Tomoka Homma, Shoma Onuki, Yasuhito Imai, Masaki Mitsuya
Proc. ASME. PVP2024, Volume 5: Operations, Applications, & Components; Seismic Engineering; ASME Nondestructive Evaluation, Diagnosis and Prognosis (NDPD) Division, V005T07A028, July 28–August 2, 2024
Publisher: American Society of Mechanical Engineers
Paper No: PVP2024-123580
https://doi.org/10.1115/PVP2024-123580
View Paper titled, Critical Strain in Carbon Steel Pipes With Local Wall Thinning Subjected to Large Bending in Soil Liquefaction-Induced Lateral Spreading
Open the PDF for Critical Strain in Carbon Steel Pipes With Local Wall Thinning Subjected to Large Bending in Soil Liquefaction-Induced Lateral Spreading in another window
Topics: Carbon steel, Liquefaction, Pipelines, Pipes, Soil, Soil liquefaction, Buckling, Rupture, Failure, Failure mechanisms
Proceedings Papers

Verification of Applicability of Battelle Two-Curve Method to Ultrahigh-Pressure Rich-Gas Pipelines Based on a Full-Scale Burst Test

Yasuhito Imai, Masaki Mitsuya, Masao Toyoda
Proc. ASME. IPC2018, Volume 3: Operations, Monitoring, and Maintenance; Materials and Joining, V003T05A006, September 24–28, 2018
Publisher: American Society of Mechanical Engineers
Paper No: IPC2018-78447
https://doi.org/10.1115/IPC2018-78447
View Paper titled, Verification of Applicability of Battelle Two-Curve Method to Ultrahigh-Pressure Rich-Gas Pipelines Based on a Full-Scale Burst Test
Open the PDF for Verification of Applicability of Battelle Two-Curve Method to Ultrahigh-Pressure Rich-Gas Pipelines Based on a Full-Scale Burst Test in another window
Topics: Pipelines, Pressure, Ductile fracture, Pipes, Fracture (Materials), Fracture toughness, Temperature, American Petroleum Institute, Computer simulation, Explosives
Journal Articles

Application of Weibull Stress Criterion to Brittle Fracture Assessment of Heat-Affected Zone-Notched Welds With Residual Stress

Yusuke Seko, Yasuhito Imai, Masaki Mitsuya, Noritake Oguchi, Fumiyoshi Minami
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. April 2016, 138(2): 021404.
Paper No: PVT-15-1058
https://doi.org/10.1115/1.4031662
Published Online: October 15, 2015
View Articletitled, Application of Weibull Stress Criterion to Brittle Fracture Assessment of Heat-Affected Zone-Notched Welds With Residual Stress
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Topics: Fracture (Materials), Stress, Welded joints, Fracture (Process), Shapes, Finite element analysis, Welding, Geometry, Brittle fracture
Proceedings Papers

Application of Weibull Stress Criterion to Brittle Fracture Assessment of HAZ-Notched Welds With Residual Stress

Yusuke Seko, Yasuhito Imai, Masaki Mitsuya, Noritake Oguchi, Fumiyoshi Minami
Proc. ASME. IPC2014, Volume 3: Materials and Joining; Risk and Reliability, V003T07A058, September 29–October 3, 2014
Publisher: American Society of Mechanical Engineers
Paper No: IPC2014-33731
https://doi.org/10.1115/IPC2014-33731
View Paper titled, Application of Weibull Stress Criterion to Brittle Fracture Assessment of HAZ-Notched Welds With Residual Stress
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Topics: Brittle fracture, Stress, Welded joints, Fracture (Materials), Fracture (Process), Geometry, Finite element analysis, Shapes, Structural elements (Construction), Displacement
Proceedings Papers

Evaluation on Dependence of Ductile Crack Propagation Resistance on Crack Velocity

Shuji Aihara, Kazuki Shibanuma, Yasuhito Imai, Taishi Fujishiro, Takuya Hara
Proc. ASME. IPC2012, Volume 3: Materials and Joining, 575-584, September 24–28, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IPC2012-90637
https://doi.org/10.1115/IPC2012-90637
View Paper titled, Evaluation on Dependence of Ductile Crack Propagation Resistance on Crack Velocity
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Topics: Ductile fracture, Fracture (Materials), Pipes, Crack propagation, Displacement, Finite element analysis, Stress, Weight (Mass)
Proceedings Papers

A New Model for Dynamic Crack Propagation and Arrest in Gas Pipelines

Kei Misawa, Yasuhito Imai, Shuji Aihara
Proc. ASME. IPC2010, 2010 8th International Pipeline Conference, Volume 2, 685-694, September 27–October 1, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IPC2010-31475
https://doi.org/10.1115/IPC2010-31475
View Paper titled, A New Model for Dynamic Crack Propagation and Arrest in Gas Pipelines
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Topics: Crack propagation, Pipelines, Fracture (Materials), Pipes, Deformation, Differential equations, Ductile fracture, Gases, Pipe sizes, Pressure
Proceedings Papers

Full-Scale Burst Test of Hydrogen Gas X65 Pipeline

Shuji Aihara, Hans I. Lange, Kei Misawa, Yasuhito Imai, Yu Sedei, Erling O̸stby, Christian Thaulow
Proc. ASME. IPC2010, 2010 8th International Pipeline Conference, Volume 2, 415-422, September 27–October 1, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IPC2010-31235
https://doi.org/10.1115/IPC2010-31235
View Paper titled, Full-Scale Burst Test of Hydrogen Gas X65 Pipeline
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Topics: Hydrogen, Pipelines, Fracture (Materials), Steel, Computer simulation, Crack propagation, Explosives, Fracture toughness, Methane, Pipes
Proceedings Papers

Burst Tests for High-Pressure Hydrogen Gas Line Pipes

Shuji Aihara, Erling O̸stby, Hans I. Lange, Kei Misawa, Yasuhito Imai, Christian Thaulow
Proc. ASME. IPC2008, 2008 7th International Pipeline Conference, Volume 3, 117-125, September 29–October 3, 2008
Publisher: American Society of Mechanical Engineers
Paper No: IPC2008-64166
https://doi.org/10.1115/IPC2008-64166
View Paper titled, Burst Tests for High-Pressure Hydrogen Gas Line Pipes
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Topics: High pressure (Physics), Hydrogen, Pipes, Fracture (Materials), Methane, Numerical analysis, Pressure measurement, Shear (Mechanics), Wall thickness, Waves