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Proceedings Papers

The Influence of Multiaxial Stress Relaxation on Component Creep Damage Accumulation in Biaxial, Mixed Primary, and Secondary Loading on a Pipe

Nayden Matev, Robert A. Ainsworth, Meini Su, Mark Stevens, Alan Jappy

Proc. ASME. PVP2020, Volume 1: Codes and Standards, V001T01A046, August 3, 2020

Paper No: PVP2020-21211

DOI: https://doi.org/10.1115/PVP2020-21211

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Topics: Creep, Damage, Pipes, Relaxation (Physics), Stress, Aeroelasticity, Cycles, Ductility, High temperature, Inelastic analysis

Proceedings Papers

The Effect of Cyclic Hardening Model on Deformation Behavior of Cracked Body Under Creep-Fatigue Loading Condition

Hyun-Woo Jung, Yun-Jae Kim, Yukio Takahashi, Kamran Nikbin, Catrin M. Davies, Robert A. Ainsworth

Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A037, August 3, 2020

Paper No: PVP2020-21356

DOI: https://doi.org/10.1115/PVP2020-21356

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Topics: Creep, Deformation, Fatigue, Fracture (Materials), Hardening

Proceedings Papers

Correlation Analysis Between Time-Dependent Creep Crack-Tip Stress and Constraint Effect on Creep Crack Initiation Time

Seung-Ho Lee, Hyun-Woo Jung, Yun-Jae Kim, Kamran Nikbin, Robert A. Ainsworth

Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A038, August 3, 2020

Paper No: PVP2020-21429

DOI: https://doi.org/10.1115/PVP2020-21429

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Topics: Creep, Fracture (Materials), Stress

Journal Articles

The Influence of Multiaxial Stress Relaxation on Component Creep Damage Accumulation

Nayden Matev, Robert A. Ainsworth, Meini Su, Mark Stevens, Alan Jappy

J. Pressure Vessel Technol. June 2021, 143(3): 031502.

Paper No: PVT-20-1056

DOI: https://doi.org/10.1115/1.4048430

Published Online: October 7, 2020

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Topics: Creep, Damage, Relaxation (Physics), Stress, Geometry, Ductility

Proceedings Papers

The Influence of Multiaxial Stress Relaxation on Component Creep Damage Accumulation

Nayden Matev, Robert A. Ainsworth, Meini Su, Mark Stevens, Alan Jappy

Proc. ASME. PVP2019, Volume 1: Codes and Standards, V001T01A039, July 14–19, 2019

Paper No: PVP2019-93096

DOI: https://doi.org/10.1115/PVP2019-93096

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Topics: Creep, Damage, Relaxation (Physics), Stress, Aeroelasticity, Cycles, Displacement, Ductility, Geometry, High temperature

Proceedings Papers

A Screening Methodology to Rapidly Reduce ILI Data, Visualise and Determine Most Detrimental Defects in Pipelines

Nicolas O. Larrosa, Pablo Lopez-Crespo, Robert A. Ainsworth

Proc. ASME. PVP2017, Volume 1A: Codes and Standards, V01AT01A042, July 16–20, 2017

Paper No: PVP2017-66190

DOI: https://doi.org/10.1115/PVP2017-66190

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Topics: Pipelines, Density, Dimensions, Finite element analysis, Inspection, Pipeline risers, Rendering, Risers (Casting), Visualization

Proceedings Papers

An Approach to Reduce the Amount of ILI Data in Fatigue Analysis of Pits in Pipelines

Nicolas O. Larrosa, Pablo Lopez-Crespo, Robert A. Ainsworth

Proc. ASME. OMAE2017, Volume 3B: Structures, Safety and Reliability, V03BT02A039, June 25–30, 2017

Paper No: OMAE2017-62594

DOI: https://doi.org/10.1115/OMAE2017-62594

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Topics: Fatigue analysis, Pipelines, Density, Dimensions, Finite element analysis, Inspection, Pipeline risers, Rendering, Risers (Casting), Visualization

Proceedings Papers

Design and Assessment for Creep-Fatigue and Creep-Fatigue Crack Growth

Robert A. Ainsworth

Proc. ASME. PVP2016, Volume 1B: Codes and Standards, V01BT01A054, July 17–21, 2016

Paper No: PVP2016-63313

DOI: https://doi.org/10.1115/PVP2016-63313

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Topics: Creep, Design, Fatigue, Fracture (Materials), Uncertainty, Damage, Clearances (Engineering), Fatigue cracks, Fatigue damage

Proceedings Papers

Constraint Solutions for Cracked Plates and Cylinders

Caroline Meek, Marius Gintalas, Andrew H. Sherry, Robert A. Ainsworth

Proc. ASME. PVP2016, Volume 6A: Materials and Fabrication, V06AT06A019, July 17–21, 2016

Paper No: PVP2016-63152

DOI: https://doi.org/10.1115/PVP2016-63152

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Topics: Cylinders, Plates (structures), Collapse, Stress, Finite element analysis, Fitness-for-service

Proceedings Papers

Dissimilar Metal Analysis and Issues

Robert A. Ainsworth

Proc. ASME. PVP2016, Volume 5: High-Pressure Technology; Rudy Scavuzzo Student Paper Symposium and 24th Annual Student Paper Competition; ASME Nondestructive Evaluation, Diagnosis and Prognosis Division (NDPD); Electric Power Research Institute (EPRI) Creep Fatigue Workshop, V005T12A006, July 17–21, 2016

Paper No: PVP2016-63977

DOI: https://doi.org/10.1115/PVP2016-63977

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Topics: Metals, Design, Fatigue, High temperature, High temperature creep, Stress analysis (Engineering), Testing, Welded joints

Proceedings Papers

Fatigue Life Estimation of Pitted Specimens by Means of an Integrated Fracture Mechanics Approach

Nicolas O. Larrosa, Mirco D. Chapetti, Robert A. Ainsworth

Proc. ASME. PVP2016, Volume 3: Design and Analysis, V003T03A057, July 17–21, 2016

Paper No: PVP2016-63888

DOI: https://doi.org/10.1115/PVP2016-63888

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Topics: Fatigue life, Fracture mechanics, Fracture (Materials), Stress, Failure, Corrosion, Crack propagation, Cycles, Endurance limit, Fatigue

Proceedings Papers

Assessing Fatigue Endurance Limit of Pitted Specimens by Means of an Integrated Fracture Mechanics Approach

Nicolas O. Larrosa, Mirco D. Chapetti, Robert A. Ainsworth

Proc. ASME. PVP2015, Volume 7: Operations, Applications and Components, V007T07A005, July 19–23, 2015

Paper No: PVP2015-45562

DOI: https://doi.org/10.1115/PVP2015-45562

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Topics: Corrosion, Endurance limit, Fatigue, Finite element analysis, Fracture (Materials), Fracture mechanics, Materials properties

Proceedings Papers

The Effect of Biaxial Loading on the Limit Load of Cracked Plates

Caroline Meek, Robert A. Ainsworth

Proc. ASME. PVP2015, Volume 6A: Materials and Fabrication, V06AT06A018, July 19–23, 2015

Paper No: PVP2015-45466

DOI: https://doi.org/10.1115/PVP2015-45466

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Topics: Plates (structures), Stress, Fracture (Materials), Fitness-for-service

Proceedings Papers

Constraint Based Assessments of Large-Scale Cracked Straight Pipes and Elbows

Marius Gintalas, Robert A. Ainsworth

Proc. ASME. PVP2015, Volume 6A: Materials and Fabrication, V06AT06A029, July 19–23, 2015

Paper No: PVP2015-45948

DOI: https://doi.org/10.1115/PVP2015-45948

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Topics: Pipes, Stress, Fracture (Materials), Fracture toughness, Fitness-for-service

Proceedings Papers

Characterization of the Effect of Notch Bluntness on Hydrogen Embrittlement and Fracture Behavior Using FE Analyses

Jun-Young Jeon, Nicolas O. Larrosa, Young-Ryun Oh, Yun-Jae Kim, Robert A. Ainsworth

Proc. ASME. PVP2015, Volume 6A: Materials and Fabrication, V06AT06A021, July 19–23, 2015

Paper No: PVP2015-45635

DOI: https://doi.org/10.1115/PVP2015-45635

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Topics: Finite element analysis, Fracture (Materials), Fracture (Process), Hydrogen embrittlement, Hydrogen, Damage, Diffusion (Physics), Simulation, Fracture toughness, Stress

Proceedings Papers

Comparison of Plastic Work Curvature Methods for Assessing the Collapse Load of a Structure

Christopher K. Seal, Jae-Jun Han, Robert A. Ainsworth

Proc. ASME. PVP2015, Volume 3: Design and Analysis, V003T03A021, July 19–23, 2015

Paper No: PVP2015-45544

DOI: https://doi.org/10.1115/PVP2015-45544

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Topics: Collapse, Stress, Methods engineering

Proceedings Papers

Design and Maintenance in an IAEA Technical Guidelines on Fluid-Structure Interaction

Fumio Inada, Tomomichi Nakamura, Takashi Nishihara, Shigehiko Kaneko, Manwoong Kim, Robert A. Ainsworth, Shiro Takahashi

Proc. ASME. PVP2014, Volume 4: Fluid-Structure Interaction, V004T04A085, July 20–24, 2014

Paper No: PVP2014-28389

DOI: https://doi.org/10.1115/PVP2014-28389

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Topics: Design, Fluid structure interaction, Maintenance, Damage, Deformation, Flow-induced vibrations, Fracture (Materials), Fracture (Process), Nuclear power, Nuclear power plant maintenance

Proceedings Papers

Elastic Follow-Up Factors to Estimate C(t) Under Secondary Loading

Kuk-Hee Lee, Yun-Jae Kim, Robert A. Ainsworth, David Dean

Proc. ASME. PVP2012, Volume 1: Codes and Standards, 241-247, July 15–19, 2012

Paper No: PVP2012-78454

DOI: https://doi.org/10.1115/PVP2012-78454

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Topics: Creep, Finite element analysis, Fracture (Materials), Relaxation (Physics), Stress, Transients (Dynamics)

Proceedings Papers

Elastic Follow-Up Factor for Cruciform Plate Under Bi-Axial Loading

Kuk-Hee Lee, Yun-Jae Kim, Robert A. Ainsworth, David Dean, Tae-Eun Jin

Proc. ASME. PVP2011, Volume 3: Design and Analysis, 479-485, July 17–21, 2011

Paper No: PVP2011-57185

DOI: https://doi.org/10.1115/PVP2011-57185

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Topics: Creep, Finite element analysis, Geometry, Plates (structures), Poisson ratio, Stress

Proceedings Papers

A Prediction of V-Factor for the Cracked Pipe Under Combined Mechanical and Thermal Stresses With Elastic Follow-Up

Tae-Kwang Song, Kuk-Hee Lee, Chang-Young Oh, Yun-Jae Kim, Robert A. Ainsworth, Kamran Nikbin

Proc. ASME. PVP2010, ASME 2010 Pressure Vessels and Piping Conference: Volume 6, Parts A and B, 91-95, July 18–22, 2010

Paper No: PVP2010-25260

DOI: https://doi.org/10.1115/PVP2010-25260

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Topics: Pipes, Thermal stresses, Stress, Failure, Fracture (Materials), Plasticity

Journal citation

NARROW

The Influence of Multiaxial Stress Relaxation on Component Creep Damage Accumulation in Biaxial, Mixed Primary, and Secondary Loading on a Pipe

The Effect of Cyclic Hardening Model on Deformation Behavior of Cracked Body Under Creep-Fatigue Loading Condition

Correlation Analysis Between Time-Dependent Creep Crack-Tip Stress and Constraint Effect on Creep Crack Initiation Time

The Influence of Multiaxial Stress Relaxation on Component Creep Damage Accumulation

The Influence of Multiaxial Stress Relaxation on Component Creep Damage Accumulation

A Screening Methodology to Rapidly Reduce ILI Data, Visualise and Determine Most Detrimental Defects in Pipelines

An Approach to Reduce the Amount of ILI Data in Fatigue Analysis of Pits in Pipelines

Design and Assessment for Creep-Fatigue and Creep-Fatigue Crack Growth

Constraint Solutions for Cracked Plates and Cylinders

Dissimilar Metal Analysis and Issues

Fatigue Life Estimation of Pitted Specimens by Means of an Integrated Fracture Mechanics Approach

Assessing Fatigue Endurance Limit of Pitted Specimens by Means of an Integrated Fracture Mechanics Approach

The Effect of Biaxial Loading on the Limit Load of Cracked Plates

Constraint Based Assessments of Large-Scale Cracked Straight Pipes and Elbows

Characterization of the Effect of Notch Bluntness on Hydrogen Embrittlement and Fracture Behavior Using FE Analyses

Comparison of Plastic Work Curvature Methods for Assessing the Collapse Load of a Structure

Design and Maintenance in an IAEA Technical Guidelines on Fluid-Structure Interaction

Elastic Follow-Up Factors to Estimate C(t) Under Secondary Loading

Elastic Follow-Up Factor for Cruciform Plate Under Bi-Axial Loading

A Prediction of V-Factor for the Cracked Pipe Under Combined Mechanical and Thermal Stresses With Elastic Follow-Up

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