1-20 of 30
Mitsuru Ohata
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Constraint Effect on Fracture in Ductile-Brittle Transition Temperature Region (Report 3)

Kiminobu Hojo, Takatoshi Hirota, Yasuto Nagoshi, Takuya Fukahori, Kimihisa Sakima, Mitsuru Ohata, Fumiyoshi Minami
Proc. ASME. PVP2023, Volume 1: Codes & Standards, V001T01A006, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-105965
https://doi.org/10.1115/PVP2023-105965
View Paper titled, Constraint Effect on Fracture in Ductile-Brittle Transition Temperature Region (Report 3)
Open the PDF for Constraint Effect on Fracture in Ductile-Brittle Transition Temperature Region (Report 3) in another window
Topics: Ductile fracture, Ductile-brittle transition, Fracture (Materials), Fracture (Process), Stress, Temperature
Proceedings Papers

Constraint Effect on Fracture in Ductile-Brittle Transition Temperature Region (Report 2)

Kiminobu Hojo, Takatoshi Hirota, Yasuto Nagoshi, Takuya Fukahori, Kimihisa Sakima, Mitsuru Ohata, Fumiyoshi Minami
Proc. ASME. PVP2022, Volume 1: Codes and Standards, V001T01A003, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-84186
https://doi.org/10.1115/PVP2022-84186
View Paper titled, Constraint Effect on Fracture in Ductile-Brittle Transition Temperature Region (Report 2)
Open the PDF for Constraint Effect on Fracture in Ductile-Brittle Transition Temperature Region (Report 2) in another window
Topics: Ductile-brittle transition, Fracture (Materials), Fracture (Process), Stress, Temperature
Proceedings Papers

Constraint Effect on Fracture in Ductile-Brittle Transition Temperature Region

Kiminobu Hojo, Takatoshi Hirota, Yasuto Nagoshi, Takuya Fukahori, Kimihisa Sakima, Mitsuru Ohata, Fumiyoshi Minami
Proc. ASME. PVP2021, Volume 1: Codes and Standards, V001T01A055, July 13–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: PVP2021-61318
https://doi.org/10.1115/PVP2021-61318
View Paper titled, Constraint Effect on Fracture in Ductile-Brittle Transition Temperature Region
Open the PDF for Constraint Effect on Fracture in Ductile-Brittle Transition Temperature Region in another window
Topics: Ductile fracture, Ductile-brittle transition, Fracture (Materials), Temperature
Proceedings Papers

Benchmark Analysis by Beremin Model and GTN Model in CAF Subcommittee

Takatoshi Hirota, Yasuto Nagoshi, Kiminobu Hojo, Hiroshi Okada, Akiyuki Takahashi, Jinya Katsuyama, Takashi Ueda, Takuya Ogawa, Kenji Yashirodai, Mitsuru Ohata, Fumiyoshi Minami
Proc. ASME. PVP2021, Volume 1: Codes and Standards, V001T01A056, July 13–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: PVP2021-61668
https://doi.org/10.1115/PVP2021-61668
View Paper titled, Benchmark Analysis by Beremin Model and GTN Model in CAF Subcommittee
Open the PDF for Benchmark Analysis by Beremin Model and GTN Model in CAF Subcommittee in another window
Topics: Brittleness, Computer simulation, Damage, Deformation, Ductile fracture, Ductile-brittle transition, Evaluation methods, Finite element analysis, Finite element model, Flat plates
Journal Articles

Ductile Damage Model Based on Void Growth Analysis for Application to Ductile Crack Growth Simulation

Takehisa Yamada, Mitsuru Ohata
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. February 2022, 144(1): 011502.
Paper No: PVT-21-1006
https://doi.org/10.1115/1.4050774
Published Online: August 4, 2021
View Article titled, Ductile Damage Model Based on Void Growth Analysis for Application to Ductile Crack Growth Simulation
Open the PDF for Ductile Damage Model Based on Void Growth Analysis for Application to Ductile Crack Growth Simulation in another window
Topics: Damage, Ductile fracture, Simulation, Stress
Proceedings Papers

Proposal of Ductile Damage Model Based on Unit Cell Analysis for Prediction of Ductile Crack Growth Resistance of Cracked Component

Takehisa Yamada, Mitsuru Ohata
Proc. ASME. PVP2019, Volume 3: Design and Analysis, V003T03A067, July 14–19, 2019
Publisher: American Society of Mechanical Engineers
Paper No: PVP2019-93098
https://doi.org/10.1115/PVP2019-93098
View Paper titled, Proposal of Ductile Damage Model Based on Unit Cell Analysis for Prediction of Ductile Crack Growth Resistance of Cracked Component
Open the PDF for Proposal of Ductile Damage Model Based on Unit Cell Analysis for Prediction of Ductile Crack Growth Resistance of Cracked Component in another window
Topics: Damage, Ductile fracture, Fracture (Materials)
Proceedings Papers

Ductile Crack Extension Analysis for X80 Bending Deformation Using Damage-Based Model

Satoshi Igi, Mitsuru Ohata, Takahiro Sakimoto, Kenji Oi, Joe Kondo
Proc. ASME. IPC2014, Volume 4: Production Pipelines and Flowlines; Project Management; Facilities Integrity Management; Operations and Maintenance; Pipelining in Northern and Offshore Environments; Strain-Based Design; Standards and Regulations, V004T11A010, September 29–October 3, 2014
Publisher: American Society of Mechanical Engineers
Paper No: IPC2014-33432
https://doi.org/10.1115/IPC2014-33432
View Paper titled, Ductile Crack Extension Analysis for X80 Bending Deformation Using Damage-Based Model
Open the PDF for Ductile Crack Extension Analysis for X80 Bending Deformation Using Damage-Based Model in another window
Topics: Damage, Deformation, Ductile fracture, Simulation models, Buckling, Finite element analysis, Fracture (Materials), Pipes, Pressure, Shapes
Journal Articles

Investigation of Bulging Behavior of Coke Drum—A Practical Analysis of Bulging Under Complex Quench Conditions

Toshiya Yamamoto, Kazuaki Arii, Shinta Niimoto, Mitsuru Ohata, Tetsuya Tagawa, Fumiyoshi Minami
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. December 2014, 136(6): 061401.
Paper No: PVT-12-1010
https://doi.org/10.1115/1.4027591
Published Online: September 4, 2014
View Article titled, Investigation of Bulging Behavior of Coke Drum—A Practical Analysis of Bulging Under Complex Quench Conditions
Open the PDF for Investigation of Bulging Behavior of Coke Drum—A Practical Analysis of Bulging Under Complex Quench Conditions in another window
Topics: Coke, Finite element analysis, Heat transfer, Quenching (Metalworking), Shells, Temperature, Water, Boiling, Durability, Cycles
Journal Articles

Investigation of Bulging Behavior of Coke Drum: Feasible Study on Causes of Bulging

Mitsuru Ohata, Nana Kawai, Tetsuya Tagawa, Fumiyoshi Minami, Toshiya Yamamoto, Kazuaki Arii, Shinta Niimoto
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. June 2014, 136(3): 031205.
Paper No: PVT-11-1229
https://doi.org/10.1115/1.4026046
Published Online: April 4, 2014
View Article titled, Investigation of Bulging Behavior of Coke Drum: Feasible Study on Causes of Bulging
Open the PDF for Investigation of Bulging Behavior of Coke Drum: Feasible Study on Causes of Bulging in another window
Topics: Coke, Cycles, Quenching (Metalworking), Shells, Welded joints, Cooling, Temperature
Proceedings Papers

Buckling and Tensile Strain Capacity of Girth Welded 48″ X80 Pipeline

Satoshi Igi, Mitsuru Ohata, Takahiro Sakimoto, Junji Shimamura, Kenji Oi
Proc. ASME. OMAE2013, Volume 3: Materials Technology; Ocean Space Utilization, V003T03A039, June 9–14, 2013
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2013-10994
https://doi.org/10.1115/OMAE2013-10994
View Paper titled, Buckling and Tensile Strain Capacity of Girth Welded 48″ X80 Pipeline
Open the PDF for Buckling and Tensile Strain Capacity of Girth Welded 48″ X80 Pipeline in another window
Topics: Buckling, Pipelines, Ductile fracture, Pipes, Fracture (Materials), Fracture (Process), Damage, Finite element analysis, High pressure (Physics), Necking
Journal Articles

Damage Caused by Dynamic/Cyclic Loading of a Detonation Chamber

Yasuhito Takashima, Mitsuru Ohata, Tetsuya Tagawa, Fumiyoshi Minami, Bart Simoens, Michel H. Lefebvre, Robert E. Nickell, Kenji Koide, Ryusuke Kitamura, Koichi Hayashi, Joseph K. Asahina
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. August 2013, 135(4): 041404.
Paper No: PVT-12-1167
https://doi.org/10.1115/1.4023733
Published Online: June 11, 2013
View Article titled, Damage Caused by Dynamic/Cyclic Loading of a Detonation Chamber
Open the PDF for Damage Caused by Dynamic/Cyclic Loading of a Detonation Chamber in another window
Topics: Explosions, Fracture (Materials), Damage, Fracture toughness
Journal Articles

Equivalent CTOD Ratio β for Engineering Assessment of CTOD Correction for Constraint Loss

Mitsuru Ohata, Fumiyoshi Minami
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Materials And Fabrication
J. Pressure Vessel Technol. October 2012, 134(5): 051403.
https://doi.org/10.1115/1.4006346
Published Online: September 10, 2012
View Article titled, Equivalent CTOD Ratio β for Engineering Assessment of CTOD Correction for Constraint Loss
Open the PDF for Equivalent CTOD Ratio β for Engineering Assessment of CTOD Correction for Constraint Loss in another window
Topics: Fracture (Materials), Fracture toughness, Stress, Structural elements (Construction), Steel
Proceedings Papers

Damage Caused by Dynamic/Cyclic Loading of Detonation Chamber

Yasuhito Takashima, Mitsuru Ohata, Tetsuya Tagawa, Bart Simoens, Michel H. Lefebvre, Robert E. Nickell, Kenji Koide, Ryusuke Kitamura, Koichi Hayashi, Joseph K. Asahina, Fumiyoshi Minami
Proc. ASME. PVP2011, Volume 5: High-Pressure Technology; Nondestructive Evaluation; Nuclear Engineering, 105-112, July 17–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: PVP2011-57313
https://doi.org/10.1115/PVP2011-57313
View Paper titled, Damage Caused by Dynamic/Cyclic Loading of Detonation Chamber
Open the PDF for Damage Caused by Dynamic/Cyclic Loading of Detonation Chamber in another window
Topics: Damage, Explosions, Ductility, Fracture toughness, Steel, Design, Dynamic testing (Materials), Explosives, Fatigue cracks, Temperature
Proceedings Papers

Investigation of Bulging Behavior of Coke Drum: A Practical Analysis of Bulging Under Complex Quench Conditions

Toshiya Yamamoto, Kazuaki Arii, Huhetaoli, Shinta Niimoto, Mitsuru Ohata, Tetsuya Tagawa, Fumiyoshi Minami
Proc. ASME. PVP2011, Volume 4: Fluid-Structure Interaction, 563-572, July 17–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: PVP2011-57428
https://doi.org/10.1115/PVP2011-57428
View Paper titled, Investigation of Bulging Behavior of Coke Drum: A Practical Analysis of Bulging Under Complex Quench Conditions
Open the PDF for Investigation of Bulging Behavior of Coke Drum: A Practical Analysis of Bulging Under Complex Quench Conditions in another window
Topics: Coke, Temperature, Quenching (Metalworking), Shells, Finite element analysis, Temperature profiles, Boiling, Cooling, Cracking (Materials), Cycles
Proceedings Papers

Investigation of Bulging Behavior of Coke Drum: Feasible Study on Causes of Bulging

Mitsuru Ohata, Nana Kawai, Tetsuya Tagawa, Fumiyoshi Minami, Toshiya Yamamoto, Kazuaki Arii, Shinta Niimoto
Proc. ASME. PVP2011, Volume 4: Fluid-Structure Interaction, 509-518, July 17–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: PVP2011-57276
https://doi.org/10.1115/PVP2011-57276
View Paper titled, Investigation of Bulging Behavior of Coke Drum: Feasible Study on Causes of Bulging
Open the PDF for Investigation of Bulging Behavior of Coke Drum: Feasible Study on Causes of Bulging in another window
Topics: Coke, Quenching (Metalworking), Temperature, Shells, Cooling, Cracking (Materials), Cycles, Damage, Finite element analysis, Fracture (Process)
Journal Articles

Evaluation of Fracture Toughness Test Data for Multilayer Dissimilar Joint Welds Using a Weibull Stress Model

Yasuhito Takashima, Mitsuru Ohata, Masaru Seto, Yoshitomi Okazaki, Fumiyoshi Minami
Journal: Journal of ASTM International
Publisher: ASTM International
Article Type: Research-Article
J. ASTM Int.. March 2012, 9(3): 1–15.
https://doi.org/10.1520/JAI103979
Published Online: March 16, 2012
View Article titled, Evaluation of Fracture Toughness Test Data for Multilayer Dissimilar Joint Welds Using a Weibull Stress Model
Open the PDF for Evaluation of Fracture Toughness Test Data for Multilayer Dissimilar Joint Welds Using a Weibull Stress Model in another window
Journal Articles

Application of Equivalent CTOD Ratio to Fracture Assessment of Structural Components

Satoshi Igi, Mitsuru Ohata, Fumiyoshi Minami
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. August 2010, 132(4): 041402.
https://doi.org/10.1115/1.4001197
Published Online: July 23, 2010
View Article titled, Application of Equivalent CTOD Ratio to Fracture Assessment of Structural Components
Open the PDF for Application of Equivalent CTOD Ratio to Fracture Assessment of Structural Components in another window
Topics: Fracture (Materials), Fracture toughness, Structural elements (Construction), Steel, Stress, Fracture (Process)
Proceedings Papers

Fracture Performance Evaluation of Laser Beam Welded Joints Based on the Weibull Stress Criterion

Yasuhito Takashima, Mitsuru Ohata, Fumiyoshi Minami
Proc. ASME. PVP2009, Volume 3: Design and Analysis, 551-556, July 26–30, 2009
Publisher: American Society of Mechanical Engineers
Paper No: PVP2009-77956
https://doi.org/10.1115/PVP2009-77956
View Paper titled, Fracture Performance Evaluation of Laser Beam Welded Joints Based on the Weibull Stress Criterion
Open the PDF for Fracture Performance Evaluation of Laser Beam Welded Joints Based on the Weibull Stress Criterion in another window
Topics: Fracture (Materials), Laser beams, Performance evaluation, Stress, Welded joints, Fracture toughness, Metals, Brittle fracture, Tension, Design
Journal Articles

Crack Geometry Effect on Stress-Strain Fields for Crack Under Biaxial Loading

Fumiyoshi Minami, Mitsuru Ohata, Daisuke Watanabe, Satoshi Igi, Takahiro Kubo, Nobuhisa Suzuki
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. February 2010, 132(1): 011404.
https://doi.org/10.1115/1.4000348
Published Online: December 23, 2009
View Article titled, Crack Geometry Effect on Stress-Strain Fields for Crack Under Biaxial Loading
Open the PDF for Crack Geometry Effect on Stress-Strain Fields for Crack Under Biaxial Loading in another window
Topics: Fracture (Materials), Stress, Brittle fracture
Proceedings Papers

Equivalent CTOD Ratio β for Engineering Assessment of CTOD Correction for Constraint Loss

Mitsuru Ohata, Fumiyoshi Minami
Proc. ASME. PVP2008, Volume 1: Codes and Standards, 855-863, July 27–31, 2008
Publisher: American Society of Mechanical Engineers
Paper No: PVP2008-61142
https://doi.org/10.1115/PVP2008-61142
View Paper titled, Equivalent CTOD Ratio β for Engineering Assessment of CTOD Correction for Constraint Loss
Open the PDF for Equivalent CTOD Ratio β for Engineering Assessment of CTOD Correction for Constraint Loss in another window
Topics: Brittle fracture, Fracture (Materials), Fracture toughness, Plates (structures), Shapes, Size effect, Steel, Stress, Structural elements (Construction), Work hardening