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Proceedings Papers

Delayed Hydride Cracking Initiation Evaluation of a Fretting Flaw in a CANDU Reactor Zr-Nb Pressure Tube With Consideration of Finite Length of the Flaw and Flaw Shielding Effect

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Douglas Scarth, Steven Xu, Preeti Doddihal, Dennis Kawa, Monique Ip
Proc. ASME. PVP2024, Volume 4: Materials & Fabrication, V004T06A003, July 28–August 2, 2024
Publisher: American Society of Mechanical Engineers
Paper No: PVP2024-123315
https://doi.org/10.1115/PVP2024-123315
View Paper titled, Delayed Hydride Cracking Initiation Evaluation of a Fretting Flaw in a CANDU Reactor Zr-Nb Pressure Tube With Consideration of Finite Length of the Flaw and Flaw Shielding Effect
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Topics: Candu reactors, Cracking (Materials), Fracture (Process), Pressure, Zirconium
Journal Articles

Closed-Form Stress Intensity Factor Solutions for Surface Cracks With Large Aspect Ratios in Plates

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Kisaburo Azuma, Yinsheng Li, Steven Xu
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. April 2020, 142(2): 021207.
Paper No: PVT-19-1109
https://doi.org/10.1115/1.4045029
Published Online: November 28, 2019
View Articletitled, Closed-Form Stress Intensity Factor Solutions for Surface Cracks With Large Aspect Ratios in Plates
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Topics: Finite element analysis, Fracture (Materials), Plates (structures), Stress, Surface cracks, Curve fitting, Polynomials, Stress concentration
Proceedings Papers

Load Normalization Method Accounting for Elastic and Elastic-Plastic Crack Growth

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Kim Wallin, Steven Xu
Proc. ASME. PVP2019, Volume 6B: Materials and Fabrication, V06BT06A049, July 14–19, 2019
Publisher: American Society of Mechanical Engineers
Paper No: PVP2019-93226
https://doi.org/10.1115/PVP2019-93226
View Paper titled, Load Normalization Method Accounting for Elastic and Elastic-Plastic Crack Growth
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Topics: Accounting, Fracture (Materials), Stress
Proceedings Papers

Revision to Stress Intensity Factor Equations for ASME Section XI Appendix C-4000: Determination of Failure Mode

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Kiminobu Hojo, Steven Xu
Proc. ASME. PVP2018, Volume 1A: Codes and Standards, V01AT01A011, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-85051
https://doi.org/10.1115/PVP2018-85051
View Paper titled, Revision to Stress Intensity Factor Equations for ASME Section XI Appendix C-4000: Determination of Failure Mode
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Topics: Failure mechanisms, Stress, Pipes, Bending (Stress), Dimensions, Materials properties, Membranes, Shapes, Temperature
Proceedings Papers

Solution of a Sample Problem Related to Revision 1 of Code Case N-830

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Mark Kirk, Steven Xu, Cheng Lui, Marjorie Erickson, Yil Kim, Darrell Lee, Do Jun Shim, Gary Stevens
Proc. ASME. PVP2017, Volume 1A: Codes and Standards, V01AT01A007, July 16–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: PVP2017-66150
https://doi.org/10.1115/PVP2017-66150
View Paper titled, Solution of a Sample Problem Related to Revision 1 of Code Case N-830
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Topics: ASME Standards, Electromagnetic scattering, Engineers, Fracture (Materials), Fracture (Process), Fracture toughness, Mechanical engineers, Nuclear reactors, Phase transition temperature, Pipes
Proceedings Papers

Closed-Form Stress Intensity Factor Solutions for Deep Surface Cracks in Plates

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Kisaburo Azuma, Yinsheng Li, Kunio Hasegawa, Steven Xu
Proc. ASME. PVP2017, Volume 1B: Codes and Standards, V01BT01A053, July 16–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: PVP2017-66092
https://doi.org/10.1115/PVP2017-66092
View Paper titled, Closed-Form Stress Intensity Factor Solutions for Deep Surface Cracks in Plates
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Topics: Plates (structures), Stress, Surface cracks, Fracture (Materials), Stress corrosion cracking, Alloys, ASME Boiler and Pressure Vessel Code, Crack propagation, Curve fitting, Failure
Proceedings Papers

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

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Douglas Scarth, Steven Xu, Cheng Liu
Proc. ASME. PVP2017, Volume 6A: Materials and Fabrication, V06AT06A041, July 16–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: PVP2017-66194
https://doi.org/10.1115/PVP2017-66194
View Paper titled, Engineering Process-Zone Model for Evaluation of Structural Strength of Fuel Channel Annulus Spacers in CANDU Nuclear Reactors
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Topics: Annulus, Fuels, Nuclear reactors, Pressure, Design, Load bearing capacity, Stress, Alloys, Damage, Engineering models
Proceedings Papers

Fracture Protection of CANDU Zr-2.5Nb Pressure Tubes With High Hydrogen Equivalent Concentration

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Preeti Doddihal, Douglas Scarth, Paula Mosbrucker, Steven Xu
Proc. ASME. PVP2015, Volume 6A: Materials and Fabrication, V06AT06A032, July 19–23, 2015
Publisher: American Society of Mechanical Engineers
Paper No: PVP2015-46000
https://doi.org/10.1115/PVP2015-46000
View Paper titled, Fracture Protection of CANDU Zr-2.5Nb Pressure Tubes With High Hydrogen Equivalent Concentration
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Topics: Fracture (Materials), Hydrogen, Pressure, Zirconium, Temperature, Fracture toughness, Heat, Alloys, Coolants, Corrosion
Proceedings Papers

Closed-Form Stress Intensity Factor Solutions for Circumferential Through-Wall Cracks in Cylinder

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Do-Jun Shim, Steven Xu, Darrell Lee
Proc. ASME. PVP2014, Volume 1: Codes and Standards, V001T01A011, July 20–24, 2014
Publisher: American Society of Mechanical Engineers
Paper No: PVP2014-28049
https://doi.org/10.1115/PVP2014-28049
View Paper titled, Closed-Form Stress Intensity Factor Solutions for Circumferential Through-Wall Cracks in Cylinder
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Topics: Cylinders, Fracture (Materials), Stress, Computer software, Tension, American Petroleum Institute, Finite element analysis, Fitness-for-service, Fracture mechanics, Stability
Journal Articles

Effect of Weld Residual Stress Fitting on Stress Intensity Factor for Circumferential Surface Cracks in Pipe

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Do-Jun Shim, Steven Xu, Matthew Kerr
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. February 2015, 137(1): 011403.
Paper No: PVT-13-1194
https://doi.org/10.1115/1.4027430
Published Online: October 13, 2014
View Articletitled, Effect of Weld Residual Stress Fitting on Stress Intensity Factor for Circumferential Surface Cracks in Pipe
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Topics: Fracture (Materials), Polynomials, Stress, Stress concentration, Surface cracks, Pipes, Fittings, Finite element analysis
Proceedings Papers

Effect of Flaw Orientation on Delayed Hydride Crack Initiation in Zr-2.5Nb Pressure Tubes

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Gordon K. Shek, Jun Cui, Douglas A. Scarth, Steven Xu
Proc. ASME. PVP2013, Volume 6A: Materials and Fabrication, V06AT06A015, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97947
https://doi.org/10.1115/PVP2013-97947
View Paper titled, Effect of Flaw Orientation on Delayed Hydride Crack Initiation in Zr-2.5Nb Pressure Tubes
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Topics: Fracture (Materials), Pressure, Zirconium, Fracture (Process), Natural, scientific and engineering processes and practices, Stress, Cracking (Materials), Diffusion (Physics), Hydrogen, Precipitation
Proceedings Papers

Effect of Weld Residual Stress Fitting on Stress Intensity Factor for Circumferential Surface Cracks in Pipe

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Do-Jun Shim, Matthew Kerr, Steven Xu
Proc. ASME. PVP2012, Volume 6: Materials and Fabrication, Parts A and B, 1099-1106, July 15–19, 2012
Publisher: American Society of Mechanical Engineers
Paper No: PVP2012-78180
https://doi.org/10.1115/PVP2012-78180
View Paper titled, Effect of Weld Residual Stress Fitting on Stress Intensity Factor for Circumferential Surface Cracks in Pipe
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Topics: Fittings, Pipes, Stress, Surface cracks, Polynomials, Fracture (Materials), Wall thickness, Finite element analysis, Metals, Stress concentration
Proceedings Papers

Engineering New Package Ideal Materials Using Polymer Resins and Nanoparticles

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Vijay Sarihan, Steven Xu, Beth Keser
Proc. ASME. InterPACK2007, ASME 2007 InterPACK Conference, Volume 2, 965-969, July 8–12, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IPACK2007-33312
https://doi.org/10.1115/IPACK2007-33312
View Paper titled, Engineering New Package Ideal Materials Using Polymer Resins and Nanoparticles
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Topics: Nanoparticles, Polymers, Resins, Reliability, Materials properties, Packaging, Particulate matter, Simulation, Composite materials, Diluents