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Journal Articles

Integrity Evaluation of Boundary Function of Main Components in Nuclear Plants during Severe Accidents

Accepted Manuscript
Kazuyuki Tsukimori, Hiroki Yada
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol.
Paper No: PVT-24-1125
https://doi.org/10.1115/1.4067760
Published Online: January 28, 2025
View Articletitled, Integrity Evaluation of Boundary Function of Main Components in Nuclear Plants during Severe Accidents
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Topics: Accidents, Nuclear power stations, Bellows (Equipment), Buckling, Design, Failure, Plates (structures), Pressure, Radioactive substances, Safety
Proceedings Papers

Stress Intensity Factor Solutions for Circumferential Through-Wall Cracks Applicable to Pool Type Sodium Cooled Fast Reactors

Hiroki Yada, Shigeru Takaya, Hideo Machida
Proc. ASME. ICONE31, Volume 1: Nuclear Plant Operation and Maintenance, Engineering and Modification, Operation Life Extension (OLE), and Life Cycle, V001T01A010, August 4–8, 2024
Publisher: American Society of Mechanical Engineers
Paper No: ICONE31-134552
https://doi.org/10.1115/ICONE31-134552
View Paper titled, Stress Intensity Factor Solutions for Circumferential Through-Wall Cracks Applicable to Pool Type Sodium Cooled Fast Reactors
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Topics: Cylinders, Fast neutron reactors, Finite element analysis, Fracture (Materials), Sodium, Stress
Proceedings Papers

Comparison Between Fracture Mechanics Evaluation Methods in ASME Boiler & Pressure Vessel Code, Section XI and Those in JSME Leak-Before-Break Evaluation Guidelines for Sodium-Cooled Fast Reactors

Hiroki Yada, Shigeru Takaya, Hideo Machida
Proc. ASME. PVP2023, Volume 1: Codes & Standards, V001T01A003, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-106562
https://doi.org/10.1115/PVP2023-106562
View Paper titled, Comparison Between Fracture Mechanics Evaluation Methods in ASME Boiler & Pressure Vessel Code, Section XI and Those in JSME Leak-Before-Break Evaluation Guidelines for Sodium-Cooled Fast Reactors
Open the PDF for Comparison Between Fracture Mechanics Evaluation Methods in ASME Boiler & Pressure Vessel Code, Section XI and Those in JSME Leak-Before-Break Evaluation Guidelines for Sodium-Cooled Fast Reactors in another window
Topics: Boilers, Evaluation methods, Fracture (Materials), Fracture (Process), Fracture mechanics, Japan Society of Mechanical Engineers, Leak-before-break, Pressure vessels, Sodium fast reactors
Proceedings Papers

Proposal of Detailed Procedures of Determining Rational In-Service Inspection Requirements Based on System Based Code Concept

Hiroki Yada, Shigeru Takaya, Kyoichi Morohoshi, Shinobu Yokoi
Proc. ASME. ICONE29, Volume 1: Nuclear Plant Operation and Maintenance, Engineering and Modification, Operation Life Extension (OLE), and Life Cycle, V001T01A013, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-90542
https://doi.org/10.1115/ICONE29-90542
View Paper titled, Proposal of Detailed Procedures of Determining Rational In-Service Inspection Requirements Based on System Based Code Concept
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Topics: In-service inspection, Inspection, Sodium fast reactors
Proceedings Papers

Development of Leak Before Break Assessment Guidelines for Sodium Cooled Fast Reactors in Japan

Hiroki Yada, Takashi Wakai, Takayuki Miyagawa, Hideo Machida
Proc. ASME. PVP2021, Volume 1: Codes and Standards, V001T01A060, July 13–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: PVP2021-61942
https://doi.org/10.1115/PVP2021-61942
View Paper titled, Development of Leak Before Break Assessment Guidelines for Sodium Cooled Fast Reactors in Japan
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Topics: Fast neutron reactors, Fracture (Materials), In-service inspection, Leakage, Leak-before-break, Sodium, Sodium fast reactors
Journal Articles

Development of In-Service Inspection Rules for Liquid-Metal Cooled Reactors Using the System Based Code Concept

Shigeru Takaya, Tai Asayama, Hiroki Yada, A. Thomas Roberts, Frank J. Schaaf, Jr.
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. April 2020, 142(2): 021204.
Paper No: PVT-19-1071
https://doi.org/10.1115/1.4044344
Published Online: November 27, 2019
View Articletitled, Development of In-Service Inspection Rules for Liquid-Metal Cooled Reactors Using the System Based Code Concept
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Topics: In-service inspection, Liquid metals, Sodium, Pipes, Heat, Breeder reactors, Fracture (Materials), Welded joints, Reliability, Engineering prototypes
Proceedings Papers

Effect of 3-D Initial Imperfections on the Deformation Behaviors of Head Plates Subjected to Convex Side Pressure

Hiroki Yada, Masanori Ando, Kazuyuki Tsukimori, Masakazu Ichimiya, Yoshinari Anoda
Proc. ASME. PVP2018, Volume 3A: Design and Analysis, V03AT03A049, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84533
https://doi.org/10.1115/PVP2018-84533
View Paper titled, Effect of 3-D Initial Imperfections on the Deformation Behaviors of Head Plates Subjected to Convex Side Pressure
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Topics: Deformation, Plates (structures), Pressure, Finite element analysis, Buckling, Containment vessels, Design, Dimensions, Evaluation methods, External pressure
Proceedings Papers

Experimental Demonstration of Failure Modes on Bellows Structures Subject to Internal Pressure

Masanori Ando, Hiroki Yada, Kazuyuki Tsukimori, Masakazu Ichimiya, Yoshinari Anoda
Proc. ASME. PVP2017, Volume 3B: Design and Analysis, V03BT03A001, July 16–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: PVP2017-65226
https://doi.org/10.1115/PVP2017-65226
View Paper titled, Experimental Demonstration of Failure Modes on Bellows Structures Subject to Internal Pressure
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Topics: Bellows (Equipment), Failure mechanisms, Pressure, Finite element analysis, Fracture toughness, Deformation, Design, Buckling, Evaluation methods, Failure
Proceedings Papers

Failure Mode of ED and AD Type Head Plates Subject to Convex Side Pressure

Hiroki Yada, Masanori Ando, Kazuyuki Tsukimori, Masakazu Ichimiya, Yoshinari Anoda
Proc. ASME. PVP2017, Volume 3B: Design and Analysis, V03BT03A002, July 16–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: PVP2017-65227
https://doi.org/10.1115/PVP2017-65227
View Paper titled, Failure Mode of ED and AD Type Head Plates Subject to Convex Side Pressure
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Topics: Failure mechanisms, Plates (structures), Pressure, Fracture (Materials), Containment vessels, Failure, Deformation, Design, Fracture toughness, Leakage
Journal Articles

Experimental Study on the Deformation and Failure of the Bellows Structure Beyond the Designed Internal Pressure

Masanori Ando, Hiroki Yada, Kazuyuki Tsukimori, Masakazu Ichimiya, Yoshinari Anoda
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. December 2017, 139(6): 061201.
Paper No: PVT-17-1100
https://doi.org/10.1115/1.4037564
Published Online: August 25, 2017
View Articletitled, Experimental Study on the Deformation and Failure of the Bellows Structure Beyond the Designed Internal Pressure
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Topics: Bellows (Equipment), Deformation, Failure, Finite element analysis, Pressure, Shapes, Pipes, Buckling, Failure mechanisms
Proceedings Papers

Experimental Study on Ultimate Strength of Single and Double Type Bellows Under Internal Pressure

Masanori Ando, Hiroki Yada, Kazuyuki Tsukimori, Masakazu Ichimiya, Yoshinari Anoda
Proc. ASME. PVP2016, Volume 3: Design and Analysis, V003T03A082, July 17–21, 2016
Publisher: American Society of Mechanical Engineers
Paper No: PVP2016-63146
https://doi.org/10.1115/PVP2016-63146
View Paper titled, Experimental Study on Ultimate Strength of Single and Double Type Bellows Under Internal Pressure
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Topics: Bellows (Equipment), Pressure, Tensile strength, Containment vessels, Fracture toughness, Design, Coolants, Fast neutron reactors, Safety, Countermeasures
Proceedings Papers

Experimental Study on Ultimate Strength of a Ellipsoidal Dished Head Plate Under Pressure on Convex Surface

Hiroki Yada, Masanori Ando, Kazuyuki Tsukimori, Masakazu Ichimiya, Yoshinari Anoda
Proc. ASME. PVP2016, Volume 3: Design and Analysis, V003T03A083, July 17–21, 2016
Publisher: American Society of Mechanical Engineers
Paper No: PVP2016-63147
https://doi.org/10.1115/PVP2016-63147
View Paper titled, Experimental Study on Ultimate Strength of a Ellipsoidal Dished Head Plate Under Pressure on Convex Surface
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Topics: Pressure, Tensile strength, Containment vessels, Design, Fracture toughness, Safety, Coolants, Countermeasures, Evaluation methods, External pressure