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Journal Articles

Master Curve Evaluation Using the Fracture Toughness Data at Low Temperature of T  −  T 0  < −50 °C

Masato Yamamoto, Mark Kirk, Tomoki Shinko
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. June 2025, 147(3): 031501.
Paper No: PVT-24-1118
https://doi.org/10.1115/1.4067727
Published Online: February 14, 2025
View Article titled, Master Curve Evaluation Using the Fracture Toughness Data at Low Temperature of T  −  T 0  &lt; −50 °C
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Topics: ASTM International, Fracture toughness, Low temperature, Temperature
Proceedings Papers

Effect of Interrupting Master Curve Fracture Toughness Tests for a Material Exhibiting Ductile Crack Growth at the K Jc Between K Jclimit and the Final K Jc at Test Termination

Masato Yamamoto, Mark Kirk
Proc. ASME. PVP2024, Volume 1: Codes & Standards; Computer Technology & Bolted Joints, V001T01A055, July 28–August 2, 2024
Publisher: American Society of Mechanical Engineers
Paper No: PVP2024-120918
https://doi.org/10.1115/PVP2024-120918
View Paper titled, Effect of Interrupting Master Curve Fracture Toughness Tests for a Material Exhibiting Ductile Crack Growth at the K Jc Between K Jclimit and the Final K Jc at Test Termination
Open the PDF for Effect of Interrupting Master Curve Fracture Toughness Tests for a Material Exhibiting Ductile Crack Growth at the K Jc Between K Jclimit and the Final K Jc at Test Termination in another window
Topics: Ductile fracture, Fracture toughness, Steel
Proceedings Papers

Test Temperature Selection Procedures for Small Specimen Master Curve Tests Considering the Possibility of Inhomogeneous Materials

Masato Yamamoto, Mark Kirk
Proc. ASME. PVP2023, Volume 1: Codes & Standards, V001T01A026, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-101326
https://doi.org/10.1115/PVP2023-101326
View Paper titled, Test Temperature Selection Procedures for Small Specimen Master Curve Tests Considering the Possibility of Inhomogeneous Materials
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Topics: Fracture toughness, Temperature, ASTM International, Deformation, Reactor vessels, Steel, Weibull distribution, Yield stress
Proceedings Papers

Evaluation of Crack Initiation Probability by FERMAT Code in Conformity With the Procedure by a Japanese Industrial PFM Guideline

Satoshi Miyashiro, Takayuki Sakai, Masaki Nagai, Masato Yamamoto
Proc. ASME. PVP2023, Volume 5: Materials & Fabrication, V005T06A090, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-106288
https://doi.org/10.1115/PVP2023-106288
View Paper titled, Evaluation of Crack Initiation Probability by FERMAT Code in Conformity With the Procedure by a Japanese Industrial PFM Guideline
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Topics: Fracture (Materials), Probability
Proceedings Papers

Practical Procedure of Test Temperature Selection for Mini-C(T) Master Curve Evaluation

Masato Yamamoto, Seiji Sakuraya, Yuji Kitsunai, Mark Kirk
Proc. ASME. PVP2022, Volume 1: Codes and Standards, V001T01A025, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-82754
https://doi.org/10.1115/PVP2022-82754
View Paper titled, Practical Procedure of Test Temperature Selection for Mini-C(T) Master Curve Evaluation
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Topics: Reactor vessels, Steel, Temperature, Testing, Low temperature, Plasticity, Surveillance, ASTM International, Fracture toughness, Reliability
Proceedings Papers

Obtaining Low-Cost Estimates of the Master Curve Index Temperature T 0 From Existing Information

Mark Kirk, Naoki Miura, Tomoki Skinko, Masato Yamamoto
Proc. ASME. PVP2022, Volume 1: Codes and Standards, V001T01A044, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-83905
https://doi.org/10.1115/PVP2022-83905
View Paper titled, Obtaining Low-Cost Estimates of the Master Curve Index Temperature T 0 From Existing Information
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Topics: Fracture toughness, Reactor vessels, Temperature, Testing, ASME Standards, Steel, Surveillance, Tension
Proceedings Papers

Master Curve Evaluation Using the Fracture Toughness Data at Low Test Temperature of T - T o <-50 °C

Masato Yamamoto, Mark Kirk, Tomoki Shinko
Proc. ASME. PVP2022, Volume 1: Codes and Standards, V001T01A049, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-85289
https://doi.org/10.1115/PVP2022-85289
View Paper titled, Master Curve Evaluation Using the Fracture Toughness Data at Low Test Temperature of T - T o &lt;-50 °C
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Topics: Fracture toughness, Temperature
Proceedings Papers

Ductile Crack Growth Resistance and Rotation Behavior of Miniature C(T) Specimen

Tomoki Shinko, Masato Yamamoto
Proc. ASME. PVP2020, Volume 1: Codes and Standards, V001T01A037, August 3, 2020
Publisher: American Society of Mechanical Engineers
Paper No: PVP2020-21104
https://doi.org/10.1115/PVP2020-21104
View Paper titled, Ductile Crack Growth Resistance and Rotation Behavior of Miniature C(T) Specimen
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Topics: Ductile fracture, Fracture toughness, Rotation, Steel, Fracture (Materials), Size effect, Temperature, Deformation, Ductile-brittle transition, Evaluation methods
Proceedings Papers

Assessment of the Continued Need for Independent Requirements on Transition Temperature and Upper Shelf Charpy Impact Toughness Metrics in Regulations Pertaining to Nuclear Reactor Pressure Vessels

Mark Kirk, Masato Yamamoto, Marjorie Erickson
Proc. ASME. PVP2020, Volume 1: Codes and Standards, V001T01A057, August 3, 2020
Publisher: American Society of Mechanical Engineers
Paper No: PVP2020-21186
https://doi.org/10.1115/PVP2020-21186
View Paper titled, Assessment of the Continued Need for Independent Requirements on Transition Temperature and Upper Shelf Charpy Impact Toughness Metrics in Regulations Pertaining to Nuclear Reactor Pressure Vessels
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Topics: Fracture toughness, Nuclear reactors, Phase transition temperature, Pressure vessels, Regulations, Steel, Nuclear power stations, Pressure
Proceedings Papers

PTS Evaluation Case Study Considering Actual Through-Wall Fracture Toughness Distribution

Masato Yamamoto, Masaki Nagai
Proc. ASME. PVP2019, Volume 1: Codes and Standards, V001T01A037, July 14–19, 2019
Publisher: American Society of Mechanical Engineers
Paper No: PVP2019-93964
https://doi.org/10.1115/PVP2019-93964
View Paper titled, PTS Evaluation Case Study Considering Actual Through-Wall Fracture Toughness Distribution
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Topics: Fracture toughness, Base metals, Fracture (Materials), Belts, Fluence (Radiation measurement), Fracture mechanics, Neutrons, Nuclear research, Probability, Surveillance
Proceedings Papers

Development of New Design Fatigue Curves in Japan: Discussion of Effect of Surface Finish on Fatigue Strength of Nuclear Component Materials

Motoki Nakane, Yun Wang, Hisamitsu Hatoh, Masato Yamamoto, Akihiko Hirano, Kentaro Hayashi
Proc. ASME. PVP2019, Volume 3: Design and Analysis, V003T03A044, July 14–19, 2019
Publisher: American Society of Mechanical Engineers
Paper No: PVP2019-93167
https://doi.org/10.1115/PVP2019-93167
View Paper titled, Development of New Design Fatigue Curves in Japan: Discussion of Effect of Surface Finish on Fatigue Strength of Nuclear Component Materials
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Topics: Design, Fatigue, Fatigue strength, Finishes, Fatigue testing, Surface roughness, Evaluation methods, Carbon steel, Databases, Machining
Proceedings Papers

Evaluation of Through Wall Fracture Toughness Distribution of IAEA Reference Material JRQ by Mini-C(T) Specimens and the Master Curve Method

Masato Yamamoto, Tomohiro Kobayashi
Proc. ASME. PVP2018, Volume 1A: Codes and Standards, V01AT01A071, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84889
https://doi.org/10.1115/PVP2018-84889
View Paper titled, Evaluation of Through Wall Fracture Toughness Distribution of IAEA Reference Material JRQ by Mini-C(T) Specimens and the Master Curve Method
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Topics: Fracture toughness, Temperature, Fluence (Radiation measurement), Fracture (Materials), Reactor vessels, Regulations, Stress, Thermal shock, Wall thickness
Proceedings Papers

Trial Study of the Master Curve Fracture Toughness Evaluation by Mini-C(T) Specimens for Low Upper Shelf Weld Metal Linde-80

Masato Yamamoto
Proc. ASME. PVP2018, Volume 1A: Codes and Standards, V01AT01A072, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84906
https://doi.org/10.1115/PVP2018-84906
View Paper titled, Trial Study of the Master Curve Fracture Toughness Evaluation by Mini-C(T) Specimens for Low Upper Shelf Weld Metal Linde-80
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Topics: Fracture toughness, Metals, Temperature, Ductile fracture, Electromagnetic scattering, Forging, Irradiation (Radiation exposure), Manufacturing, Reactor vessels, Steel
Proceedings Papers

Inter-Laboratory Results and Analyses of Mini-C(T) Specimen Testing of an Irradiated Linde 80 Weld Metal

William Server, Mikhail Sokolov, Masato Yamamoto, Robert Carter
Proc. ASME. PVP2018, Volume 1A: Codes and Standards, V01AT01A073, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84950
https://doi.org/10.1115/PVP2018-84950
View Paper titled, Inter-Laboratory Results and Analyses of Mini-C(T) Specimen Testing of an Irradiated Linde 80 Weld Metal
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Topics: Metals, Testing, Fracture toughness, ASTM International, Ductile fracture, Fracture (Materials), Fracture (Process), Low temperature, Reactor vessels, Temperature
Proceedings Papers

Development of New Design Fatigue Curves in Japan: Discussion of Best-Fit Curves Based on Fatigue Test Data With Small-Scale Test Specimen

Yun Wang, Hisamitsu Hatoh, Masato Yamamoto, Motoki Nakane, Akihiko Hirano, Kentaro Hayashi
Proc. ASME. PVP2018, Volume 3B: Design and Analysis, V03BT03A001, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84052
https://doi.org/10.1115/PVP2018-84052
View Paper titled, Development of New Design Fatigue Curves in Japan: Discussion of Best-Fit Curves Based on Fatigue Test Data With Small-Scale Test Specimen
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Topics: Design, Fatigue, Fatigue testing, Stress, Tensile strength, Alloys, Carbon steel, Fatigue life, Mechanical properties, Nuclear power stations
eBook Chapter

Fatigue Resistance of Rim Seals in Multi-Pane Glazing Systems from a Moisture Resistance Perspective: Solutions for Improving Moisture Barrier Performance

Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2018
https://doi.org/10.1520/STP160420170110
ISBN: 978-0-8031-7653-9
Open the PDF for Fatigue Resistance of Rim Seals in Multi-Pane Glazing Systems from a Moisture Resistance Perspective: Solutions for Improving Moisture Barrier Performance in another window
eBook Chapter

Fatigue Resistance of Rim Seals in Multi-Pane Glazing Systems from a Moisture Resistance Perspective: A Fundamental Test of Moisture Permeance Change Due to Fatigue Driven by Wind Pressure

Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2018
https://doi.org/10.1520/STP160420170112
ISBN: 978-0-8031-7653-9
Open the PDF for Fatigue Resistance of Rim Seals in Multi-Pane Glazing Systems from a Moisture Resistance Perspective: A Fundamental Test of Moisture Permeance Change Due to Fatigue Driven by Wind Pressure in another window
Proceedings Papers

The Master Curve Fracture Toughness Evaluation of Irradiated Plate Material JRQ Using Miniature-C(T) Specimens

Masato Yamamoto
Proc. ASME. PVP2017, Volume 1A: Codes and Standards, V01AT01A071, July 16–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: PVP2017-66085
https://doi.org/10.1115/PVP2017-66085
View Paper titled, The Master Curve Fracture Toughness Evaluation of Irradiated Plate Material JRQ Using Miniature-C(T) Specimens
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Topics: Fracture toughness, Steel, Base metals, Cracking (Materials), Dimensions, Fluence (Radiation measurement), Fracture (Process), Machining, Neutrons, Reactor vessels
Proceedings Papers

Location of Initiation Sites in Fracture Toughness Testing Specimens: The Effect of Size and Side Grooves

Kim Wallin, Masato Yamamoto, Ulla Ehrnstén
Proc. ASME. PVP2016, Volume 1B: Codes and Standards, V01BT01A011, July 17–21, 2016
Publisher: American Society of Mechanical Engineers
Paper No: PVP2016-63078
https://doi.org/10.1115/PVP2016-63078
View Paper titled, Location of Initiation Sites in Fracture Toughness Testing Specimens: The Effect of Size and Side Grooves
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Topics: Fracture toughness, Testing, Fracture (Materials), Stress, Fatigue cracks, Finite element analysis, Geometry
Proceedings Papers

Applicability of Miniature-C(T) Specimen for the Master Curve Evaluation of RPV Weld Metal and Heat Affected Zone

Masato Yamamoto, Naoki Miura
Proc. ASME. PVP2016, Volume 1B: Codes and Standards, V01BT01A016, July 17–21, 2016
Publisher: American Society of Mechanical Engineers
Paper No: PVP2016-63762
https://doi.org/10.1115/PVP2016-63762
View Paper titled, Applicability of Miniature-C(T) Specimen for the Master Curve Evaluation of RPV Weld Metal and Heat Affected Zone
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Topics: Heat, Metals, Fracture toughness, Base metals, Steel, Fracture (Materials), Surveillance, Dimensions, Size effect, Statistics