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Proceedings Papers

An Extended Process-Zone Modeling Framework for Overload Crack Initiation in Zr-2.5Nb Pressure Tubes

Steven X. Xu, Douglas A. Scarth, David Cho
Proc. ASME. PVP2022, Volume 1: Codes and Standards, V001T01A034, July 17–22, 2022
Paper No: PVP2022-85158
DOI: https://doi.org/10.1115/PVP2022-85158
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Topics: Fracture (Materials), Modeling, Pressure, Stress, Zirconium
Proceedings Papers

Delayed Hydride Cracking Initiation Evaluation of Interacting Flaws in a CANDU Reactor Zr-Nb Pressure Tube

Douglas Scarth, Preeti Doddihal, Monique Ip
Proc. ASME. PVP2021, Volume 4: Materials and Fabrication, V004T06A019, July 13–15, 2021
Paper No: PVP2021-62822
DOI: https://doi.org/10.1115/PVP2021-62822
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Topics: Cracking (Materials), Fracture (Process), Pressure, Zirconium
Proceedings Papers

Modeling of Plastic Zones and Fracture Paths in Representative Material Elements With Bulk Hydrides in Hydrided Irradiated Zr-2.5Nb Pressure Tube Materials Under Plane Strain Conditions

Shengjia Wu, Jwo Pan, Douglas A. Scarth
Proc. ASME. PVP2021, Volume 4: Materials and Fabrication, V004T06A003, July 13–15, 2021
Paper No: PVP2021-62458
DOI: https://doi.org/10.1115/PVP2021-62458
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Topics: Fracture (Materials), Modeling, Plane strain, Pressure, Zirconium, Stress, Elastic moduli, Finite element analysis, Stress-strain relations, Tension
Proceedings Papers

A Simplified Large Thin Plate Model for Modeling Fracture Behavior of a Hydrided Irradiated Zr-2.5Nb Pressure Tube Specimen With an Axial Crack

Shin-Jang Sung, Jwo Pan, Cheng Liu, Douglas A. Scarth
Proc. ASME. PVP2019, Volume 6A: Materials and Fabrication, V06AT06A015, July 14–19, 2019
Paper No: PVP2019-93762
DOI: https://doi.org/10.1115/PVP2019-93762
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Topics: Fracture (Materials), Modeling, Pressure, Zirconium, Finite element model, Stress
Proceedings Papers

Deformation Behavior and J-Integral of Macroscopic Hydride Platelet Clusters in Hydrided Zr-2.5Nb Pressure Tube Materials Under Plane Strain Conditions

Shengjia Wu, Jwo Pan, Douglas A. Scarth, Sterling St. Lawrence
Proc. ASME. PVP2019, Volume 6A: Materials and Fabrication, V06AT06A016, July 14–19, 2019
Paper No: PVP2019-93763
DOI: https://doi.org/10.1115/PVP2019-93763
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Topics: Deformation, Plane strain, Platelets, Pressure, Zirconium, Fracture (Materials), Mechanical behavior, Stress, Finite element analysis, Fracture toughness
Proceedings Papers

Specimen Curvature and Size Effects on Crack Growth Resistance From Compact Tension Specimens of CANDU Pressure Tubes

Bruce W. Williams, William R. Tyson, C. Hari M. Simha, Bogdan Wasiluk
Proc. ASME. PVP2019, Volume 6A: Materials and Fabrication, V06AT06A011, July 14–19, 2019
Paper No: PVP2019-93318
DOI: https://doi.org/10.1115/PVP2019-93318
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Topics: Fracture (Materials), Pressure, Tension, Fracture toughness, Stress, Tunnel construction, ASTM International, Testing, Zirconium, Damage
Proceedings Papers

Inconel X-750 Spacer Fitness-for-Service

Winnie Lau, Douglas Scarth, Preeti Doddihal
Proc. ASME. PVP2019, Volume 6A: Materials and Fabrication, V06AT06A063, July 14–19, 2019
Paper No: PVP2019-93943
DOI: https://doi.org/10.1115/PVP2019-93943
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Topics: Fitness-for-service, Annulus, Pressure, Fuels, Cooling, Design, Fatigue life, Leakage, Load bearing capacity, Materials degradation
Proceedings Papers

A Framework for Estimating Burst Test Fracture Toughness for Zr-2.5Nb Pressure Tubes Using Data From Small Specimen Tests

Steven X. Xu, Kim Wallin, David Cho
Proc. ASME. PVP2019, Volume 1: Codes and Standards, V001T01A038, July 14–19, 2019
Paper No: PVP2019-94064
DOI: https://doi.org/10.1115/PVP2019-94064
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Topics: Fracture toughness, Pressure, Zirconium
Proceedings Papers

Acceptance Criteria for Probabilistic Fracture Protection Evaluations of CANDU Zr-Nb Pressure Tubes

Douglas Scarth, Leonid Gutkin
Proc. ASME. PVP2018, Volume 1B: Codes and Standards, V01BT01A004, July 15–20, 2018
Paper No: PVP2018-85086
DOI: https://doi.org/10.1115/PVP2018-85086
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Topics: Acceptance criteria, Fracture (Materials), Fracture (Process), Pressure, Zirconium, Fracture toughness, Rupture, Probability, Stability, Design
Proceedings Papers

Pilot Study for Uncertainty Analysis in Probabilistic Fitness-for-Service Evaluations of Zr-2.5Nb Pressure Tubes: Identification of Influential Variables

Christopher Manu, Suresh Datla, Leonid Gutkin
Proc. ASME. PVP2018, Volume 1B: Codes and Standards, V01BT01A076, July 15–20, 2018
Paper No: PVP2018-85010
DOI: https://doi.org/10.1115/PVP2018-85010
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Topics: Fitness-for-service, Pressure, Uncertainty analysis, Zirconium, Leak-before-break, Uncertainty, Fracture (Materials), Sensitivity analysis, Computer software, Computers
Proceedings Papers

Pilot Study for Uncertainty Analysis in Probabilistic Fitness-for-Service Evaluations of Zr-2.5Nb Pressure Tubes: Uncertainty Characterization

Leonid Gutkin, Suresh Datla, Christopher Manu
Proc. ASME. PVP2018, Volume 1B: Codes and Standards, V01BT01A077, July 15–20, 2018
Paper No: PVP2018-85011
DOI: https://doi.org/10.1115/PVP2018-85011
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Topics: Fitness-for-service, Pressure, Uncertainty, Uncertainty analysis, Zirconium, Computer software, Leak-before-break, Design, Fracture (Materials), Nuclear power stations
Proceedings Papers

Cycle-Wise Process-Zone Model for Prediction of Delayed Hydride Cracking Initiation Under Flaw-Tip Hydride Ratcheting Conditions

Steven X. Xu, Jun Cui, Douglas A. Scarth, David Cho
Proc. ASME. PVP2018, Volume 1A: Codes and Standards, V01AT01A042, July 15–20, 2018
Paper No: PVP2018-85116
DOI: https://doi.org/10.1115/PVP2018-85116
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Topics: Cracking (Materials), Cycles, Fracture (Process), Heat, Fuels, Pressure, Stress, Bearings, Corrosion, Creep
Proceedings Papers

Multiscale Stress-Diffusion Analysis of Notch-Tip Hydrogen Profiles in Zircaloy-4

Said El Chamaa, Mitesh Patel, Mark R. Wenman, Catrin M. Davies
Proc. ASME. PVP2018, Volume 6B: Materials and Fabrication, V06BT06A013, July 15–20, 2018
Paper No: PVP2018-84555
DOI: https://doi.org/10.1115/PVP2018-84555
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Topics: Diffusion (Physics), Hydrogen, Stress, Anisotropy, Stress analysis (Engineering), Crystals, Dipoles (Electromagnetism), Finite element analysis, Modeling, Nuclear industry
Proceedings Papers

Crack Extensions in Compact Tension Specimens of Hydrided Irradiated Zr-2.5Nb Materials Using Cohesive Zone Model

Shengjia Wu, Shin-Jang Sung, Jwo Pan, Poh-Sang Lam, Douglas A. Scarth
Proc. ASME. PVP2017, Volume 6A: Materials and Fabrication, V06AT06A025, July 16–20, 2017
Paper No: PVP2017-65022
DOI: https://doi.org/10.1115/PVP2017-65022
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Topics: Fracture (Materials), Tension, Zirconium, Finite element analysis, Stress, Displacement, Fittings, Calibration, Separation (Technology), Stress-strain curves
Proceedings Papers

Engineering Process-Zone Model for Evaluation of Structural Strength of Fuel Channel Annulus Spacers in CANDU Nuclear Reactors

Douglas Scarth, Steven Xu, Cheng Liu
Proc. ASME. PVP2017, Volume 6A: Materials and Fabrication, V06AT06A041, July 16–20, 2017
Paper No: PVP2017-66194
DOI: https://doi.org/10.1115/PVP2017-66194
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Topics: Annulus, Fuels, Nuclear reactors, Pressure, Design, Load bearing capacity, Stress, Alloys, Damage, Engineering models
Proceedings Papers

Expanding Plug Wedge Test for Evaluating Hoop Tensile Properties of Fuel Cladding

Hao Jiang, Jy-An John Wang
Proc. ASME. PVP2017, Volume 6A: Materials and Fabrication, V06AT06A027, July 16–20, 2017
Paper No: PVP2017-65185
DOI: https://doi.org/10.1115/PVP2017-65185
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Topics: Cladding systems (Building), Fuels, Tensile strength, Wedges, Design, Finite element analysis, Stress, Deformation, Friction, Gages
Proceedings Papers

A Numerical Study on Fracture Toughness of CANDU Pressure Tube

Elisabeth Keim, Tomas Nicak, Bogdan Wasiluk
Proc. ASME. PVP2017, Volume 6A: Materials and Fabrication, V06AT06A076, July 16–20, 2017
Paper No: PVP2017-65757
DOI: https://doi.org/10.1115/PVP2017-65757
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Topics: Fracture toughness, Pressure, Fracture (Materials), Hydrogen, Stress, Zirconium, Alloys, Brittleness, Deformation, Displacement
Proceedings Papers

Fracture Initiation in Compact Tension Specimens of Hydrided Irradiated Zr-2.5Nb Materials With Split Circumferential Hydrides

Shin-Jang Sung, Jwo Pan, Poh-Sang Lam, Douglas A. Scarth
Proc. ASME. PVP2017, Volume 6A: Materials and Fabrication, V06AT06A036, July 16–20, 2017
Paper No: PVP2017-66051
DOI: https://doi.org/10.1115/PVP2017-66051
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Topics: Fracture (Materials), Tension, Zirconium, Fracture (Process), Stress, Failure, Finite element analysis, Fracture toughness, Stress-strain relations, Temperature
Proceedings Papers

Fracture Initiation in Pressure Tube Specimens of Hydrided Irradiated Zr-2.5Nb Materials With Split Circumferential Hydrides

Shin-Jang Sung, Jwo Pan, Poh-Sang Lam, Douglas A. Scarth
Proc. ASME. PVP2017, Volume 6A: Materials and Fabrication, V06AT06A037, July 16–20, 2017
Paper No: PVP2017-66052
DOI: https://doi.org/10.1115/PVP2017-66052
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Topics: Fracture (Materials), Pressure, Zirconium, Fracture (Process), Temperature, Finite element analysis, Fracture toughness, Stress
Proceedings Papers

Improved Engineering Process-Zone Model for Evaluation of Structural Strength of Annulus Spacers in CANDU Nuclear Reactors

Cheng Liu, Leonid Gutkin, Douglas Scarth
Proc. ASME. PVP2017, Volume 6A: Materials and Fabrication, V06AT06A040, July 16–20, 2017
Paper No: PVP2017-66193
DOI: https://doi.org/10.1115/PVP2017-66193
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Topics: Annulus, Nuclear reactors, Pressure, Stress, Design, Fuels, Separation (Technology), Traction, Damage, Displacement