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Proceedings Papers

Comparison of International Codes for a Fatigue Crack Growth Flaw Tolerance Sample Problem

Gary L. Stevens
Proc. ASME. PVP2021, Volume 1: Codes and Standards, V001T01A008, July 13–15, 2021
Paper No: PVP2021-61651
DOI: https://doi.org/10.1115/PVP2021-61651
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Topics: Fatigue cracks, ASME Standards, Pressurized water reactors, Coolants, Electricity (Physics), Engineering standards, Fatigue, Japan Society of Mechanical Engineers, JSME Standards, Pipes
Proceedings Papers

Review of Technical Basis for ASME Code Section XI Appendix L

Deepak S. Somasundaram, Dilip Dedhia, Do Jun Shim, Gary L. Stevens, Steven X. Xu
Proc. ASME. PVP2020, Volume 1: Codes and Standards, V001T01A003, August 3, 2020
Paper No: PVP2020-21690
DOI: https://doi.org/10.1115/PVP2020-21690
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Topics: ASME Standards, Fatigue, Fracture mechanics
Proceedings Papers

Background on Low Temperature Overpressure Protection System Setpoints for Pressure-Temperature Curves

Jeffrey C. Poehler, Gary L. Stevens, Anees A. Udyawar, Amy Freed
Proc. ASME. PVP2020, Volume 1: Codes and Standards, V001T01A106, August 3, 2020
Paper No: PVP2020-21663
DOI: https://doi.org/10.1115/PVP2020-21663
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Topics: Low temperature, Overpressure protection, Pressure, Temperature
Proceedings Papers

Environmentally-Assisted Fatigue Behavior of 316 Stainless Steels in Simulated PWR Primary Environment: Strain Holding, Zn-Addition, and Their Combined Effect

Hyeon Bae Lee, Ho-Sub Kim, Junjie Chen, Changheui Jang, Tae Soon Kim, Gary L. Stevens, Kawaljit Ahluwalia
Proc. ASME. PVP2019, Volume 1: Codes and Standards, V001T01A012, July 14–19, 2019
Paper No: PVP2019-93134
DOI: https://doi.org/10.1115/PVP2019-93134
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Topics: Fatigue, Pressurized water reactors, Stainless steel, Hardening, Corrosion resistance, Dislocation density, Dislocations, Fracture (Materials), Low cycle fatigue
Proceedings Papers

Uncertainty Quantification and Sensitivity Analysis for Net Section Collapse Criterion of Pipes Under Pressure and Bending

Y. S. Garud, Gary L. Stevens
Proc. ASME. PVP2019, Volume 1: Codes and Standards, V001T01A032, July 14–19, 2019
Paper No: PVP2019-93867
DOI: https://doi.org/10.1115/PVP2019-93867
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Topics: Collapse, Pipes, Pressure, Sensitivity analysis, Uncertainty quantification
Proceedings Papers

Explicit Quantification of the Interaction Between the PWR Environment and Component Surface Finish in Environmental Fatigue Evaluation Methods for Austenitic Stainless Steels

Thomas Métais, Andrew Morley, Laurent de Baglion, David Tice, Gary L. Stevens, Sam Cuvilliez
Proc. ASME. PVP2018, Volume 1A: Codes and Standards, V01AT01A016, July 15–20, 2018
Paper No: PVP2018-84240
DOI: https://doi.org/10.1115/PVP2018-84240
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Topics: Evaluation methods, Fatigue, Finishes, Pressurized water reactors, Stainless steel, Nuclear power stations, Testing, Fatigue life, Design, Polishing
Proceedings Papers

Probabilistic Fracture Mechanics Evaluations That Consider Nozzles in the Extended Beltline Region of Reactor Pressure Vessels

Gary L. Stevens, Mark T. Kirk, Terry Dickson
Proc. ASME. PVP2015, Volume 1B: Codes and Standards, V01BT01A013, July 19–23, 2015
Paper No: PVP2015-45065
DOI: https://doi.org/10.1115/PVP2015-45065
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Topics: Fracture mechanics, Nozzles, Reactor vessels, Shells, Embrittlement, Fracture (Materials), Fracture (Process), Temperature, ASME Standards, Computers
Proceedings Papers

Treatment of Stresses Exceeding Material Yield Strength in ASME Code Section XI Appendix G Fracture Toughness Evaluations

Hardayal S. Mehta, Gary L. Stevens, Daniel V. Sommerville, Michael Benson, Mark Kirk, Timothy J. Griesbach, Joshua Kusnick
Proc. ASME. PVP2014, Volume 1: Codes and Standards, V001T01A014, July 20–24, 2014
Paper No: PVP2014-28397
DOI: https://doi.org/10.1115/PVP2014-28397
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Topics: ASME Standards, Fracture toughness, Stress, Yield strength, Pressure, Temperature, Yield stress, Failure, Fracture mechanics, Thermal stresses
Proceedings Papers

Comparison of Peak Stress-Based and Flaw Tolerance-Based Fatigue Analysis of a Cylinder With Variable Stress Concentrations

Wolf Reinhardt, Gary L. Stevens
Proc. ASME. PVP2014, Volume 1: Codes and Standards, V001T01A070, July 20–24, 2014
Paper No: PVP2014-28895
DOI: https://doi.org/10.1115/PVP2014-28895
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Topics: Cylinders, Fatigue analysis, Stress, Fatigue, Fracture (Materials), Fatigue life
Proceedings Papers

ASME Section III Flaw Tolerance Sample Problem for Fatigue Design of Nuclear System Components

David J. Dewees, Paul Hirschberg, Wolf Reinhardt, Gary L. Stevens, David H. Roarty, Steve Gosselin, Keith Wright, Thomas M. Damiani
Proc. ASME. PVP2014, Volume 1: Codes and Standards, V001T01A010, July 20–24, 2014
Paper No: PVP2014-28788
DOI: https://doi.org/10.1115/PVP2014-28788
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Topics: Design, Design methodology, Evaluation methods, Fatigue, Fatigue cracks, Fatigue design, Nozzles, Stainless steel, Transients (Dynamics), Water
Proceedings Papers

Supplemental Stress and Fracture Mechanics Analyses of Pressurized Water Reactor Pressure Vessel Nozzles

Matthew Walter, Shengjun Yin, Gary L. Stevens, Daniel Sommerville, Nathan Palm, Carol Heinecke
Proc. ASME. PVP2012, Volume 3: Design and Analysis, 737-747, July 15–19, 2012
Paper No: PVP2012-78119
DOI: https://doi.org/10.1115/PVP2012-78119
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Topics: Fracture mechanics, Nozzles, Pressure vessels, Pressurized water reactors, Stress, Finite element model, Pressure, Boiling water reactors, Fracture (Materials), Boilers
Proceedings Papers

Understanding Equivalent Margins Analysis for Required Upper Shelf Energy

Michael Benson, Gary L. Stevens, Mark Kirk, Russell Cipolla, Douglas Scarth
Proc. ASME. PVP2012, Volume 1: Codes and Standards, 35-43, July 15–19, 2012
Paper No: PVP2012-78227
DOI: https://doi.org/10.1115/PVP2012-78227
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Topics: ASME Standards, Boilers, Ductile fracture, Fracture mechanics, Mechanical engineers, Pressure vessels, Reactor vessels, Regulations, Stability
Proceedings Papers

Investigation of Differences in the Finite Element Solution of a Sample Fatigue Cumulative Usage Factor Calculation Problem

Gary L. Stevens, Howard J. Rathbun, Timothy D. Gilman
Proc. ASME. PVP2011, Volume 1: Codes and Standards, 257-266, July 17–21, 2011
Paper No: PVP2011-57651
DOI: https://doi.org/10.1115/PVP2011-57651
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Topics: Fatigue, Finite element analysis, Electric arc furnaces, ASME Standards, Pressure, Pressurized water reactors, Vessels, Boiling water reactors, Computer software, Design
Proceedings Papers

Stress and Fracture Mechanics Analyses of Boiling Water Reactor and Pressurized Water Reactor Pressure Vessel Nozzles

Shengjun Sean Yin, Gary L. Stevens, B. Richard Bass, Mark T. Kirk
Proc. ASME. PVP2011, Volume 1: Codes and Standards, 963-972, July 17–21, 2011
Paper No: PVP2011-57014
DOI: https://doi.org/10.1115/PVP2011-57014
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Topics: Boiling water reactors, Fracture mechanics, Nozzles, Pressure vessels, Pressurized water reactors, Stress, Corners (Structural elements), Finite element model, Fracture (Materials), Pressure
Proceedings Papers

Additional Improvements to Appendix G of ASME Section XI Code for Nozzles

Hardayal S. Mehta, Timothy J. Griesbach, Daniel V. Sommerville, Gary L. Stevens
Proc. ASME. PVP2011, Volume 1: Codes and Standards, 973-984, July 17–21, 2011
Paper No: PVP2011-57015
DOI: https://doi.org/10.1115/PVP2011-57015
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Topics: Nozzles, Corners (Structural elements), Pressure, Stress, Temperature, ASME Standards, Fluence (Radiation measurement), Reactor vessels, Temperature gradient, Welding research
Proceedings Papers

A Proposal for the Maximum K Ic for Use in ASME Code Flaw and Fracture Toughness Evaluations

Mark T. Kirk, Gary L. Stevens, Marjorie Erickson, Shengjun Sean Yin
Proc. ASME. PVP2011, Volume 1: Codes and Standards, 985-994, July 17–21, 2011
Paper No: PVP2011-57173
DOI: https://doi.org/10.1115/PVP2011-57173
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Topics: ASME Standards, Fracture toughness, Steel, Temperature, Errors, Phase transition temperature, Pressure, Reactor vessels, Thermal shock, Welded joints
Proceedings Papers

Dispelling the Myths Behind Regulatory Issue Summary 2008-30 (Nuclear Plant Component Fatigue Sensitivity Analyses)

Terry J. Herrmann, Tyler D. Novotny, Gary L. Stevens
Proc. ASME. PVP2009, Volume 1: Codes and Standards, 163-170, July 26–30, 2009
Paper No: PVP2009-78136
DOI: https://doi.org/10.1115/PVP2009-78136
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Topics: Fatigue, Nuclear power stations, Sensitivity analysis, Stress, Resonance ionization spectroscopy, Nozzles, ASME Standards, Boiling water reactors, Feedwater, Monitoring systems
Proceedings Papers

Sample Environmental Fatigue Calculations Associated With the Review of Draft Regulatory Guide DG-1144

Gary L. Stevens, J. Michael Davis, Les Spain
Proc. ASME. PVP2007, Volume 1: Codes and Standards, 173-190, July 22–26, 2007
Paper No: PVP2007-26211
DOI: https://doi.org/10.1115/PVP2007-26211
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Topics: Fatigue, Electric arc furnaces, Light water reactors, Alloy steel, ASME Standards, Carbon, Coolants, Fatigue analysis, Fatigue life, Licensing
Proceedings Papers

Evaluation of Controlling Transient Ramp Times Using Piping Methodologies When Considering Environmental Fatigue (F en ) Effects

J. Michael Davis, Gary L. Stevens
Proc. ASME. PVP2007, Volume 1: Codes and Standards, 161-172, July 22–26, 2007
Paper No: PVP2007-26210
DOI: https://doi.org/10.1115/PVP2007-26210
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Topics: Fatigue, Pipes, Transients (Dynamics), Design, Fatigue analysis, ASME Standards, Temperature, Geometry, Reliability, Stress
Proceedings Papers

Suggested Improvements to Appendix G of ASME Section XI Code

Hardayal S. Mehta, Timothy J. Griesbach, Gary L. Stevens
Proc. ASME. PVP2008, Volume 1: Codes and Standards, 365-375, July 27–31, 2008
Paper No: PVP2008-61624
DOI: https://doi.org/10.1115/PVP2008-61624
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Topics: ASME Standards, Computational methods, Corners (Structural elements), Failure, Fracture (Materials), Fracture toughness, Nozzles, Pipes, Pressure, Reactor vessels