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Proceedings Papers

An Improved Axial Surface Crack Model to Predict Crack Growth and Burst Pressures Based on FE Analyses For J plastic And J-R Curve Methodology

Gery Wilkowski, Jeong K. Hong, Frederick W. Brust, Yunior Hioe

Proc. ASME. IPC2022, Volume 2: Pipeline and Facilities Integrity, V002T03A008, September 26–30, 2022

Paper No: IPC2022-86904

DOI: https://doi.org/10.1115/IPC2022-86904

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Topics: Finite element analysis, Fracture (Materials), Fracture toughness, Pipes, Pressure, Surface cracks

Proceedings Papers

Initial Experimental and Analytical Efforts to Predict Sustained Load Crack Growth During a Hydrotest and Subsequent Fatigue Crack Growth During Pressure Cycling

Yunior Hioe, Fabian Orth, Gery Wilkowski, Frederick Brust, Ken Bagnoli

Proc. ASME. IPC2022, Volume 2: Pipeline and Facilities Integrity, V002T03A014, September 26–30, 2022

Paper No: IPC2022-87354

DOI: https://doi.org/10.1115/IPC2022-87354

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Topics: Fatigue cracks, Fracture (Materials), Pressure, Stress

Proceedings Papers

Computational Mechanics Based Validation of Crack Growth Approaches for Fracture Specimen Predictions

Sureshkumar Kalyanam, Lance Hill, Gery Wilkowski, Frederick Brust

Proc. ASME. PVP2022, Volume 4A: Materials and Fabrication, V04AT06A021, July 17–22, 2022

Paper No: PVP2022-84898

DOI: https://doi.org/10.1115/PVP2022-84898

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Topics: Computational mechanics, Fracture (Materials), Damage, Modeling, Ductile fracture, Finite element methods, Finite element model, Stress, Structural steel, Tension

Proceedings Papers

Crack Growth Modeling and Constraint Behavior Observations in Complex Crack Geometries

Sureshkumar Kalyanam, Lance Hill, Gery Wilkowski, Frederick Brust

Proc. ASME. PVP2022, Volume 4A: Materials and Fabrication, V04AT06A002, July 17–22, 2022

Paper No: PVP2022-84841

DOI: https://doi.org/10.1115/PVP2022-84841

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Topics: Finite element analysis, Fracture (Materials), Modeling

Proceedings Papers

Evaluation of the Fracture Behavior of Cold-Worked Elbows With Prescribed Cracks

Sureshkumar Kalyanam, Sushma Pothana, Gery Wilkowski, Yunior Hioe, Fabian Orth, Frederick Brust, Steven Gilbert

Proc. ASME. PVP2022, Volume 4B: Materials and Fabrication, V04BT06A004, July 17–22, 2022

Paper No: PVP2022-84833

DOI: https://doi.org/10.1115/PVP2022-84833

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Topics: Fracture (Materials), Pipes, Work hardening, Fracture (Process), Stress, Acceptance criteria, Collapse, Failure, Fittings, Fracture toughness

Journal Articles

Assessing the Secondary Stress in a Pipe System With Circumferential Surface Crack Using Finite Element Modeling

Mohammed Uddin, Sureshkumar Kalyanam, Gery Wilkowski, Frederick Brust, John Martin

J. Pressure Vessel Technol. October 2022, 144(5): 051802.

Paper No: PVT-21-1071

DOI: https://doi.org/10.1115/1.4053883

Published Online: March 8, 2022

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Topics: Pipes, Fracture (Materials), Stress

Journal Articles

The Huge Missing Factor in Leak-Before-Break Analysis: How a Circumferential Through-Wall-Crack in a Pipe System Changes the Flexibility and Reduces the Applied Moments

Mohammed Uddin, Gery Wilkowski, Suresh Kalyanam, Fedrick Brust

J. Pressure Vessel Technol. June 2022, 144(3): 031306.

Paper No: PVT-20-1213

DOI: https://doi.org/10.1115/1.4053287

Published Online: February 10, 2022

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Topics: Finite element analysis, Fracture (Materials), Leak-before-break, Pipes, Stress

Journal Articles

Flaw Evaluation Procedure for Cast Austenitic Stainless-Steel Materials Using a Newly Developed Statistical Thermal Aging Model

Mohammed Uddin, Cédric Sallaberry, Gery Wilkowski

J. Pressure Vessel Technol. October 2021, 143(5): 051504.

Paper No: PVT-20-1162

DOI: https://doi.org/10.1115/1.4050222

Published Online: March 22, 2021

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Topics: Databases, Fracture toughness, Pipes, Stainless steel, Ferrites (Magnetic materials), Fracture (Materials), Stress, Regression models

Proceedings Papers

Fracture Toughness of Welds Using As-Welded-Geometry/SENT Specimens

Mohammed Uddin, Gery Wilkowski

Proc. ASME. IPC2016, Volume 3: Operations, Monitoring and Maintenance; Materials and Joining, V003T05A053, September 26–30, 2016

Paper No: IPC2016-64596

DOI: https://doi.org/10.1115/IPC2016-64596

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Topics: Fracture toughness, Geometry, Welded joints, Fracture (Materials), Fracture (Process), Pipes, Base metals, Brittleness, Machining, Tension

Proceedings Papers

Simulation of Dynamic Crack Propagation and Arrest Using Various Types of Crack Arrestor

Mohammed Uddin, Gery Wilkowski

Proc. ASME. IPC2016, Volume 3: Operations, Monitoring and Maintenance; Materials and Joining, V003T05A014, September 26–30, 2016

Paper No: IPC2016-64561

DOI: https://doi.org/10.1115/IPC2016-64561

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Topics: Crack propagation, Fracture (Materials), Simulation, Pipes, Ductile fracture, Steel, Design, Damage, Damage mechanics, Deformation

Proceedings Papers

Bulging Factor for Axial Surface Cracks in Pipes

Do-Jun Shim, Gery Wilkowski

Proc. ASME. IPC2014, Volume 3: Materials and Joining; Risk and Reliability, V003T07A014, September 29–October 3, 2014

Paper No: IPC2014-33440

DOI: https://doi.org/10.1115/IPC2014-33440

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Topics: Pipes, Surface cracks, Engineering simulation, Fracture (Materials), Pressure, Simulation

Proceedings Papers

Comparison Between Standard and Modified Back-Slotted DWTT Specimens

Do-Jun Shim, Mohammed Uddin, Gery Wilkowski, Da-Ming Duan, James Ferguson

Proc. ASME. IPC2014, Volume 3: Materials and Joining; Risk and Reliability, V003T07A046, September 29–October 3, 2014

Paper No: IPC2014-33430

DOI: https://doi.org/10.1115/IPC2014-33430

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Topics: Displacement, Ductile fracture, Finite element analysis, Fracture (Materials), Fracture toughness, Pipes, Steel, Weight (Mass)

Proceedings Papers

Prediction of Margins in the TBS Seismic Considerations Analysis for Circumferential Surface-Cracked Piping Under Beyond Design Basis Seismic Loading

Mohammed Uddin, Frederick Brust, Gery Wilkowski, Tao Zhang, A. A. Betervide, O. Mazzantini, Ricardo A. Fernandez

Proc. ASME. PVP2014, Volume 8: Seismic Engineering, V008T08A025, July 20–24, 2014

Paper No: PVP2014-28819

DOI: https://doi.org/10.1115/PVP2014-28819

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Topics: Design, Pipes, Fracture (Materials), ASME Standards, Earthquake risk, Earthquakes, Finite element model, Probability, Stress, Surface cracks

Proceedings Papers

Verification Analyses for Newly Developed Automatic 3D Finite Element Crack Propagation System

Hiroaki Doi, Hitoshi Nakamura, Wenwei Gu, Do-Jun Shim, Gery Wilkowski

Proc. ASME. PVP2014, Volume 1: Codes and Standards, V001T01A095, July 20–24, 2014

Paper No: PVP2014-28602

DOI: https://doi.org/10.1115/PVP2014-28602

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Topics: Crack propagation, Finite element analysis, Pressurized water reactors, Boilers, Engineering mechanics, Finite element methods, Finite element model, Fracture (Materials), Nozzles, Nuclear power

Proceedings Papers

Beyond Design Basis Seismic Analysis for Atucha II Nuclear Plant

Tao Zhang, Frederick W. Brust, Gery Wilkowski, Heqin Xu, Alfredo A. Betervide, Oscar Mazzantini

Proc. ASME. ICONE20-POWER2012, Volume 5: Fusion Engineering; Student Paper Competition; Design Basis and Beyond Design Basis Events; Simple and Combined Cycles, 625-634, July 30–August 3, 2012

Paper No: ICONE20-POWER2012-54241

DOI: https://doi.org/10.1115/ICONE20-POWER2012-54241

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Topics: Design, Fracture (Materials), Nuclear power stations, Pipes, Safety, Seismic analysis

Journal Articles

Leak-Before-Break Under Beyond Design Basis Seismic Loading

Tao Zhang, Frederick W. Brust, Gery Wilkowski, Heqin Xu, Alfredo A. Betervide, Oscar Mazzantini

J. Pressure Vessel Technol. October 2013, 135(5): 051801.

Paper No: PVT-12-1030

DOI: https://doi.org/10.1115/1.4024442

Published Online: September 16, 2013

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Topics: Design, Fracture (Materials), Pipes, Rotation, Earthquakes

Proceedings Papers

A Novel Fracture Specimen for Assessment of Circumferential Complex-Cracks in Pipes

Do-Jun Shim, Gery Wilkowski, Sureshkumar Kalyanam, Frederick Brust

Proc. ASME. PVP2012, Volume 3: Design and Analysis, 359-366, July 15–19, 2012

Paper No: PVP2012-78188

DOI: https://doi.org/10.1115/PVP2012-78188

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Topics: Fracture (Materials), Pipes, Boiling water reactors, Finite element analysis, Metals, Nuclear power stations, Pressurized water reactors, Tension, Welded joints

Proceedings Papers

Welding Residual Stress in a Large Diameter Nuclear Reactor Pressure Vessel Nozzle

Tao Zhang, Frederick W. Brust, Gery Wilkowski, Heqin Xu, Alfredo A. Betervide, Oscar Mazzantini

Proc. ASME. PVP2012, Volume 6: Materials and Fabrication, Parts A and B, 1211-1218, July 15–19, 2012

Paper No: PVP2012-78578

DOI: https://doi.org/10.1115/PVP2012-78578

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Topics: Heat treating (Metalworking), Nozzles, Nuclear power stations, Nuclear reactors, Pressure vessels, Stress, Welding

Proceedings Papers

LBB Under Beyond Design Basis Seismic Loading

Tao Zhang, Frederick W. Brust, Gery Wilkowski, Heqin Xu, Alfredo A. Betervide, Oscar Mazzantini

Proc. ASME. PVP2012, Volume 8: Seismic Engineering, 55-64, July 15–19, 2012

Paper No: PVP2012-78581

DOI: https://doi.org/10.1115/PVP2012-78581

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Topics: Design, Fracture (Materials), Nuclear power stations, Pipes, Earthquakes, Heavy water reactors, Leakage, Water, Construction, Dynamic response

Proceedings Papers

Accounting for Natural Crack Growth Shapes During Environmental Cracking

Do-Jun Shim, Fredrick Brust, Gery Wilkowski

Proc. ASME. IPC2012, Volume 2: Pipeline Integrity Management, 525-532, September 24–28, 2012

Paper No: IPC2012-90570

DOI: https://doi.org/10.1115/IPC2012-90570

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Topics: Accounting, Cracking (Materials), Fracture (Materials), Fracture (Process), Shapes, Stress, Energy generation, Failure, Finite element analysis, Pipelines

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Journal citation

NARROW

An Improved Axial Surface Crack Model to Predict Crack Growth and Burst Pressures Based on FE Analyses For J plastic And J-R Curve Methodology

Initial Experimental and Analytical Efforts to Predict Sustained Load Crack Growth During a Hydrotest and Subsequent Fatigue Crack Growth During Pressure Cycling

Computational Mechanics Based Validation of Crack Growth Approaches for Fracture Specimen Predictions

Crack Growth Modeling and Constraint Behavior Observations in Complex Crack Geometries

Evaluation of the Fracture Behavior of Cold-Worked Elbows With Prescribed Cracks

Assessing the Secondary Stress in a Pipe System With Circumferential Surface Crack Using Finite Element Modeling

The Huge Missing Factor in Leak-Before-Break Analysis: How a Circumferential Through-Wall-Crack in a Pipe System Changes the Flexibility and Reduces the Applied Moments

Flaw Evaluation Procedure for Cast Austenitic Stainless-Steel Materials Using a Newly Developed Statistical Thermal Aging Model

Fracture Toughness of Welds Using As-Welded-Geometry/SENT Specimens

Simulation of Dynamic Crack Propagation and Arrest Using Various Types of Crack Arrestor

Bulging Factor for Axial Surface Cracks in Pipes

Comparison Between Standard and Modified Back-Slotted DWTT Specimens

Prediction of Margins in the TBS Seismic Considerations Analysis for Circumferential Surface-Cracked Piping Under Beyond Design Basis Seismic Loading

Verification Analyses for Newly Developed Automatic 3D Finite Element Crack Propagation System

Beyond Design Basis Seismic Analysis for Atucha II Nuclear Plant

Leak-Before-Break Under Beyond Design Basis Seismic Loading

A Novel Fracture Specimen for Assessment of Circumferential Complex-Cracks in Pipes

Welding Residual Stress in a Large Diameter Nuclear Reactor Pressure Vessel Nozzle

LBB Under Beyond Design Basis Seismic Loading

Accounting for Natural Crack Growth Shapes During Environmental Cracking

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