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Kazuya Osakabe
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Journal Articles

Guideline on Probabilistic Fracture Mechanics Analysis for Japanese Reactor Pressure Vessels

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Jinya Katsuyama, Kazuya Osakabe, Shumpei Uno, Yinsheng Li, Shinobu Yoshimura
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. April 2020, 142(2): 021205.
Paper No: PVT-19-1082
https://doi.org/10.1115/1.4045874
Published Online: February 24, 2020
View Articletitled, Guideline on Probabilistic Fracture Mechanics Analysis for Japanese Reactor Pressure Vessels
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Topics: Failure, Fracture (Materials), Fracture toughness, Neutrons, Reactor vessels, Transients (Dynamics), Fracture mechanics, Fracture (Process), Embrittlement, Irradiation (Radiation exposure)
Proceedings Papers

Guideline on Probabilistic Fracture Mechanics Analysis for Japanese Reactor Pressure Vessels

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Jinya Katsuyama, Kazuya Osakabe, Shumpei Uno, Yinsheng Li, Shinobu Yoshimura
Proc. ASME. PVP2017, Volume 1B: Codes and Standards, V01BT01A004, July 16–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: PVP2017-65921
https://doi.org/10.1115/PVP2017-65921
View Paper titled, Guideline on Probabilistic Fracture Mechanics Analysis for Japanese Reactor Pressure Vessels
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Topics: Fracture mechanics, Reactor vessels, Embrittlement, Irradiation (Radiation exposure), Neutrons, Failure, Fracture (Process), Databases, Engineers, Nuclear power
Proceedings Papers

Verification Methodology and Results of Probabilistic Fracture Mechanics Code PASCAL

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Koichi Masaki, Yuhei Miyamoto, Kazuya Osakabe, Shumpei Uno, Jinya Katsuyama, Yinsheng Li
Proc. ASME. PVP2017, Volume 1B: Codes and Standards, V01BT01A005, July 16–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: PVP2017-65950
https://doi.org/10.1115/PVP2017-65950
View Paper titled, Verification Methodology and Results of Probabilistic Fracture Mechanics Code PASCAL
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Topics: Fracture mechanics, Failure, Nuclear power, Reactor vessels, Thermal shock
Proceedings Papers

Crack Growth Simulation Under Complicated Stress Field Using S-Version FEM

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Koichi Masaki, Kazuya Osakabe, Akiyuki Takahashi, Yoshitaka Wada, Masanori Kikuchi
Proc. ASME. PVP2016, Volume 6A: Materials and Fabrication, V06AT06A010, July 17–21, 2016
Publisher: American Society of Mechanical Engineers
Paper No: PVP2016-63698
https://doi.org/10.1115/PVP2016-63698
View Paper titled, Crack Growth Simulation Under Complicated Stress Field Using S-Version FEM
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Topics: Finite element methods, Finite element model, Fracture (Materials), Simulation, Stress, Finite element analysis, Thermal stresses, Welding
Proceedings Papers

Study on Application of PFM Analysis Method to Japanese Code for RPV Integrity Assessment Under PTS Events

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Kazuya Osakabe, Koichi Masaki, Jinya Katsuyama, Genshichiro Katsumata, Kunio Onizawa, Shinobu Yoshimura
Proc. ASME. PVP2015, Volume 1B: Codes and Standards, V01BT01A055, July 19–23, 2015
Publisher: American Society of Mechanical Engineers
Paper No: PVP2015-45497
https://doi.org/10.1115/PVP2015-45497
View Paper titled, Study on Application of PFM Analysis Method to Japanese Code for RPV Integrity Assessment Under PTS Events
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Topics: Cracking (Materials), Fracture (Process), Fracture mechanics, Fracture toughness, Pressure, Reactor vessels, Uncertainty
Proceedings Papers

Development of Probabilistic Evaluation Models of Fracture Toughness K Ic and K Ia for Japanese RPV Steels

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Jinya Katsuyama, Genshichiro Katsumata, Kunio Onizawa, Kazuya Osakabe, Kentaro Yoshimoto
Proc. ASME. PVP2015, Volume 1B: Codes and Standards, V01BT01A017, July 19–23, 2015
Publisher: American Society of Mechanical Engineers
Paper No: PVP2015-45915
https://doi.org/10.1115/PVP2015-45915
View Paper titled, Development of Probabilistic Evaluation Models of Fracture Toughness K Ic and K Ia for Japanese RPV Steels
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Topics: Fracture toughness, Steel, Databases, Electromagnetic scattering, Fracture (Materials), Fracture (Process), Fracture mechanics, Log normal distribution, Probability, Reactor vessels
Journal Articles

Development of Stress Intensity Factors for Surface Cracks With Large Aspect Ratio in Plates

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Yinsheng Li, Kunio Hasegawa, Genshichiro Katsumata, Kazuya Osakabe, Hiroshi Okada
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. October 2015, 137(5): 051207.
Paper No: PVT-14-1180
https://doi.org/10.1115/1.4030026
Published Online: October 1, 2015
View Articletitled, Development of Stress Intensity Factors for Surface Cracks With Large Aspect Ratio in Plates
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Topics: Fracture (Materials), Surface cracks, Finite element analysis, Stress, Plates (structures)
Proceedings Papers

Benchmark Analysis on Probabilistic Fracture Mechanics Analysis Codes Considering Multiple Cracks and Crack Initiation in Aged Piping of Nuclear Power Plants

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Yinsheng Li, Kazuya Osakabe, Genshichiro Katsumata, Jinya Katsuyama, Kunio Onizawa, Shinobu Yoshimura
Proc. ASME. PVP2014, Volume 1: Codes and Standards, V001T01A058, July 20–24, 2014
Publisher: American Society of Mechanical Engineers
Paper No: PVP2014-28513
https://doi.org/10.1115/PVP2014-28513
View Paper titled, Benchmark Analysis on Probabilistic Fracture Mechanics Analysis Codes Considering Multiple Cracks and Crack Initiation in Aged Piping of Nuclear Power Plants
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Topics: Fracture (Materials), Fracture mechanics, Nuclear power stations, Pipes, Risk assessment, Probability, Crack detection, Failure, In-service inspection, Piping systems
Proceedings Papers

Estimation of Through-Wall Cracking Frequency of RPV Under PTS Events Using PFM Analysis Method for Identifying Conservatism Included in Current Japanese Code

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Kazuya Osakabe, Koichi Masaki, Jinya Katsuyama, Genshichiro Katsumata, Kunio Onizawa
Proc. ASME. PVP2014, Volume 1: Codes and Standards, V001T01A096, July 20–24, 2014
Publisher: American Society of Mechanical Engineers
Paper No: PVP2014-28621
https://doi.org/10.1115/PVP2014-28621
View Paper titled, Estimation of Through-Wall Cracking Frequency of RPV Under PTS Events Using PFM Analysis Method for Identifying Conservatism Included in Current Japanese Code
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Topics: Cracking (Materials), Fracture (Process), Fracture (Materials), Fracture mechanics, Fracture toughness, Pressure, Reactor vessels, Reliability, Stress, Thermal shock
Proceedings Papers

Stress Intensity Factors for Cracks With Large Aspect Ratio in Cylinder

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Yinsheng Li, Hiroaki Doi, Kunio Hasegawa, Kazuya Osakabe, Hiroshi Okada
Proc. ASME. PVP2013, Volume 1B: Codes and Standards, V01BT01A037, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97665
https://doi.org/10.1115/PVP2013-97665
View Paper titled, Stress Intensity Factors for Cracks With Large Aspect Ratio in Cylinder
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Topics: Cylinders, Fracture (Materials), Stress, Surface cracks, Nuclear power stations, Wall thickness, ASME Boiler and Pressure Vessel Code, Dimensions, Fitness-for-service, Flat plates
Proceedings Papers

Structural Integrity Evaluation of Reactor Pressure Vessels During PTS Events Using Deterministic and Probabilistic Fracture Mechanics Analysis

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Kazuya Osakabe, Hiroyuki Nishikawa, Koichi Masaki, Jinya Katsuyama, Kunio Onizawa
Proc. ASME. PVP2013, Volume 1B: Codes and Standards, V01BT01A044, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97923
https://doi.org/10.1115/PVP2013-97923
View Paper titled, Structural Integrity Evaluation of Reactor Pressure Vessels During PTS Events Using Deterministic and Probabilistic Fracture Mechanics Analysis
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Topics: Fracture mechanics, Reactor vessels, Design for Manufacturing, Fracture (Materials), Accidents, Coolants, Fracture toughness, Probability, Reliability, Steam
Proceedings Papers

Fully Automated SCC and Fatigue Crack Propagation Analyses on Deep Semi-Elliptical Flaws

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Kota Sugawara, Hirohito Koya, Hiroshi Okada, Yinsheng Li, Kazuya Osakabe, Hiroshi Kawai
Proc. ASME. PVP2013, Volume 1B: Codes and Standards, V01BT01A038, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97678
https://doi.org/10.1115/PVP2013-97678
View Paper titled, Fully Automated SCC and Fatigue Crack Propagation Analyses on Deep Semi-Elliptical Flaws
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Topics: Fatigue cracks, Crack propagation, Fracture (Materials), Stress, Finite element analysis, Shapes, Anisotropy, Computation, Computer software, Finite element model
Proceedings Papers

Development of Stress Intensity Factors for Deep Surface Cracks in Plates and Cylinders

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Yinsheng Li, Hiroto Itoh, Kunio Hasegawa, Kazuya Osakabe, Hiroshi Okada
Proc. ASME. PVP2012, Volume 1: Codes and Standards, 637-649, July 15–19, 2012
Publisher: American Society of Mechanical Engineers
Paper No: PVP2012-78109
https://doi.org/10.1115/PVP2012-78109
View Paper titled, Development of Stress Intensity Factors for Deep Surface Cracks in Plates and Cylinders
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Topics: Cylinders, Plates (structures), Stress, Surface cracks, Fracture (Materials), Finite element analysis, Nuclear power stations, ASME Boiler and Pressure Vessel Code, Dimensions, Engineering systems and industry applications
Proceedings Papers

Effect of Stress Intensity Factor Estimation Scheme on the Failure Probability of RPV During Pressurized Thermal Shock

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Kunio Onizawa, Kazuya Osakabe
Proc. ASME. PVP2007, Volume 3: Design and Analysis, 335-341, July 22–26, 2007
Publisher: American Society of Mechanical Engineers
Paper No: PVP2007-26549
https://doi.org/10.1115/PVP2007-26549
View Paper titled, Effect of Stress Intensity Factor Estimation Scheme on the Failure Probability of RPV During Pressurized Thermal Shock
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Topics: Cladding systems (Building), Failure, Fracture (Materials), Probability, Reactor vessels, Stress, Thermal shock
Proceedings Papers

Improvements to PFM Analysis Code PASCAL and Some Case Studies on RPV Integrity During Pressurized Thermal Shock

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Kunio Onizawa, Katsuyuki Shibata, Kazuya Osakabe, Kazuhisa Tanaka
Proc. ASME. PVP2006-ICPVT-11, Volume 3: Design and Analysis, 825-832, July 23–27, 2006
Publisher: American Society of Mechanical Engineers
Paper No: PVP2006-ICPVT-11-93368
https://doi.org/10.1115/PVP2006-ICPVT-11-93368
View Paper titled, Improvements to PFM Analysis Code PASCAL and Some Case Studies on RPV Integrity During Pressurized Thermal Shock
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Topics: Fracture mechanics, Reactor vessels, Thermal shock