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Proceedings Papers

Strain Based Damage Model Predictions of Ductile Crack Growth in Multiple Fracture Specimen Geometries

S. Kalyanam, L. T. Hill, G. Wilkowski, Y. Hioe, F. W. Brust

Proc. ASME. PVP2021, Volume 4: Materials and Fabrication, V004T06A001, July 13–15, 2021

Paper No: PVP2021-61172

DOI: https://doi.org/10.1115/PVP2021-61172

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Topics: Damage, Ductile fracture, Fracture (Materials), Modeling, Pipes, Stress, Tension, Doors, Electric potential, Failure

Proceedings Papers

Modeling the Fracture Behavior of SEN(T) Specimens With Crack In Heat-Affected-Zone

S. Kalyanam, L. Hill, G. M. Wilkowski, Y. Hioe

Proc. ASME. PVP2021, Volume 4: Materials and Fabrication, V004T06A032, July 13–15, 2021

Paper No: PVP2021-63027

DOI: https://doi.org/10.1115/PVP2021-63027

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Topics: Fracture (Materials), Heat, Modeling, Finite element analysis, Fracture (Process), Fracture toughness, Pipes, Tension, Anisotropy, Brittleness

Proceedings Papers

Secondary Stress Weighting Factor and Plastic Reduction Factor for Circumferential Surface Cracked Pipe and Elbow Tests at Elevated Temperature and Internal Pressure

S. Pothana, G. Wilkowski, S. Kalyanam, Y. Hioe, F. Brust, F. Orth, P. Krishnaswamy, G. Hattery, S. Burger, S. Gilbert

Proc. ASME. PVP2021, Volume 4: Materials and Fabrication, V004T06A045, July 13–15, 2021

Paper No: PVP2021-60449

DOI: https://doi.org/10.1115/PVP2021-60449

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Topics: Pipes, Pressure, Stress, Temperature, Fracture (Materials), Rotation, Displacement, Design, Fracture toughness, Pipe sizes

Proceedings Papers

Determination of Crack-Initiation in Fracture Toughness Testing Using an Experimental Key-Curve Methodology

S. Pothana, G. Wilkowski, S. Kalyanam, J. K. Hong, C. J. Sallaberry

Proc. ASME. PVP2021, Volume 2: Computer Technology and Bolted Joints; Design and Analysis, V002T03A046, July 13–15, 2021

Paper No: PVP2021-61812

DOI: https://doi.org/10.1115/PVP2021-61812

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Topics: Fracture (Materials), Fracture toughness, Testing, Stress, Fittings, Instrumentation, ASTM International, Deformation, Displacement, Electric potential

Journal Articles

Mode Mixity in the Fracture Toughness Evaluation of Heat-Affected-Zone Material Using SEN(T) Experiment

S. Kalyanam, Y. Hioe, G. M. Wilkowski

J. Pressure Vessel Technol. April 2022, 144(2): 021506.

Paper No: PVT-17-1112

DOI: https://doi.org/10.1115/1.4051981

Published Online: October 8, 2021

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Topics: Fracture (Materials), Fracture toughness, Heat, Base metals, Tension, Pipes

Journal Articles

Secondary Stress Weighting Factor and Plastic Reduction Factor of Surface Cracked Pipes Under Bending

S. Pothana, G. Wilkowski, S. Kalyanam, Y. Hioe, G. Hattery, J. Martin

J. Pressure Vessel Technol. December 2021, 143(6): 061504.

Paper No: PVT-20-1159

DOI: https://doi.org/10.1115/1.4050987

Published Online: May 31, 2021

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

Proceedings Papers

Flaw Design for d-c EP Monitoring of Crack Initiation and Growth During Full-Size Pipe Experiments

J. K. Hong, M. Brongers, S. Kalyanam, Y. Hioe, G. Wilkowski, Y. Zeng, J. F. Hallai

Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A013, August 3, 2020

Paper No: PVP2020-21579

DOI: https://doi.org/10.1115/PVP2020-21579

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Topics: Cracking (Materials), Design, Electric potential, Fracture (Materials), Fracture (Process), Modeling, Pipes, Stress

Proceedings Papers

Investigation of Circumferential Internal Surface-Cracked Pipes and Elbows Tested at Conditions Similar to PWR and an “Apparent Net-Section-Collapse” Prediction Methodology

G. Wilkowski, S. Kalyanam, S. Burger, S. Gilbert, S. Pothana, Y. Hioe, F. W. Brust, M. Myers, P. Krishnaswamy, F. Orth, G. Hattery

Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A057, August 3, 2020

Paper No: PVP2020-21532

DOI: https://doi.org/10.1115/PVP2020-21532

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Topics: Collapse, Pipes, Pressurized water reactors, Stress, Fracture (Materials), Leakage, Flow (Dynamics), Surface cracks, Temperature, Bending (Stress)

Journal Articles

Constraint Effects in Slow Crack Growth Test Methods for Service Life Prediction of High Density Polyethylene Piping

S. Kalyanam, P. Krishnaswamy, D.-J. Shim, Y. Hioe, S. Kawaguchi, T. Shimura, K. Numata

J. Pressure Vessel Technol. August 2020, 142(4): 041508.

Paper No: PVT-17-1232

DOI: https://doi.org/10.1115/1.4046884

Published Online: May 22, 2020

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Topics: Failure, Finite element analysis, Fracture (Materials), Pipes, Polyethylene pipes, Service life (Equipment), Stress, Resins, Density

Proceedings Papers

Constraint Effects of Surface Crack Depth on Toughness: Experimental and Numerical Assessments

G. Wilkowski, S. Kalyanam, Y. Hioe, F. W. Brust, S. Pothana, M. Uddin, F. Orth

Proc. ASME. PVP2019, Volume 6A: Materials and Fabrication, V06AT06A014, July 14–19, 2019

Paper No: PVP2019-93713

DOI: https://doi.org/10.1115/PVP2019-93713

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Topics: Fracture toughness, Surface cracks, Fracture (Materials), Stress, Pipes, Finite element analysis, Engineering standards, Errors, Failure, Failure analysis

Proceedings Papers

Direct-Current Electric Potential (D-C EP) Technique Validation Through an Experimental and Computational Study on Pipe With Surface Crack

Y. Hioe, S. Kalyanam, G. Wilkowski, F. W. Brust, E. Punch

Proc. ASME. PVP2019, Volume 6A: Materials and Fabrication, V06AT06A017, July 14–19, 2019

Paper No: PVP2019-93771

DOI: https://doi.org/10.1115/PVP2019-93771

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Topics: Electric potential, Pipes, Surface cracks, Fracture (Materials), Finite element analysis, Probes, Calibration, Corners (Structural elements), Electric current, Electrical discharge machining

Proceedings Papers

Role of Constraint in Specimen Geometries When Evaluating Fracture Toughness/Material Fracture Resistance for a Surface-Flawed Elbow

S. Kalyanam, G. Wilkowski, F. W. Brust, Y. Hioe, E. Punch

Proc. ASME. PVP2019, Volume 6A: Materials and Fabrication, V06AT06A065, July 14–19, 2019

Paper No: PVP2019-93732

DOI: https://doi.org/10.1115/PVP2019-93732

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Topics: Fracture (Materials), Fracture toughness, Surface cracks, Pipes, Finite element analysis, Tension, Displacement, Fatigue, Manufacturing, Pressure

Proceedings Papers

Fracture Toughness Variation With Flaw Depth in Various Specimen Geometries and Role of Constraint in Material Fracture Resistance

Y. Hioe, S. Kalyanam, G. Wilkowski, S. Pothana, J. Martin

Proc. ASME. PVP2017, Volume 6A: Materials and Fabrication, V06AT06A032, July 16–20, 2017

Paper No: PVP2017-65441

DOI: https://doi.org/10.1115/PVP2017-65441

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Topics: Fracture (Materials), Fracture toughness, Pipes, Surface cracks, Stress, Collapse, Displacement, Failure mechanisms, Flat plates, Fracture mechanics

Proceedings Papers

“Apparent Net-Section-Collapse” Methodology for Circumferential Surface Flaws in Piping

S. Kalyanam, G. Wilkowski, S. Pothana, Y. Hioe, C. Sallaberry, J. Martin

Proc. ASME. PVP2017, Volume 6B: Materials and Fabrication, V06BT06A015, July 16–20, 2017

Paper No: PVP2017-65438

DOI: https://doi.org/10.1115/PVP2017-65438

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Topics: Collapse, Pipes, Fracture (Materials), Stress, Leakage, Surface cracks, Fracture toughness, Stainless steel, Temperature, Base metals

Proceedings Papers

Modeling of Pipe System Behavior With Circumferential Surface Crack for Secondary Stress Margin Assessment

M. F. Uddin, F. W. Brust, G. M. Wilkowski, S. Kalyanam, J. Martin

Proc. ASME. PVP2017, Volume 6B: Materials and Fabrication, V06BT06A017, July 16–20, 2017

Paper No: PVP2017-66037

DOI: https://doi.org/10.1115/PVP2017-66037

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Topics: Modeling, Pipes, Stress, Surface cracks, Fracture (Materials), Design, Plasticity, Deformation, Displacement, Finite element analysis

Proceedings Papers

Development of Secondary Stress Weighting Factor and Plastic Reduction Factor From Moment-Rotation Curves of Surface Cracked Pipe Tests

S. Pothana, G. Wilkowski, S. Kalyanam, Y. Hioe, G. Hattery, J. Martin

Proc. ASME. PVP2017, Volume 6B: Materials and Fabrication, V06BT06A027, July 16–20, 2017

Paper No: PVP2017-66033

DOI: https://doi.org/10.1115/PVP2017-66033

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Topics: Pipes, Rotation, Stress, Plasticity, Fracture (Materials), Design, Fracture toughness, Stress analysis (Engineering), Displacement, Hinges

Journal Articles

Comparison of Parent and Butt-Fusion Material Properties of Unimodal High-Density Polyethylene

P. Krishnaswamy, D.-J. Shim, S. Kalyanam

J. Pressure Vessel Technol. August 2017, 139(4): 041413.

Paper No: PVT-17-1002

DOI: https://doi.org/10.1115/1.4036658

Published Online: June 1, 2017

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Topics: Density, Displacement, Failure, Fracture (Materials), Materials properties, Pipes, Safety, Stress, Temperature, Nuclear industry

Proceedings Papers

Evaluation of the Lowest Temperature for Ductile Crack Initiation in an Irradiated RPV

G. Wilkowski, F. W. Brust, M. Uddin, S. Kalyanam, V. Lacroix

Proc. ASME. PVP2016, Volume 1A: Codes and Standards, V01AT01A056, July 17–21, 2016

Paper No: PVP2016-63593

DOI: https://doi.org/10.1115/PVP2016-63593

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Topics: Ductile fracture, Temperature, Fracture toughness, Pipes, Fracture (Materials), Irradiation (Radiation exposure), Stress, Failure, Fracture (Process), Gas industry

Proceedings Papers

Validation of Axial Crack Stability Assessment Methods in xLPR Version 2.0 Code

S. Kalyanam, F. W. Brust, G. Wilkowski, D. J. Shim, D. Rudland

Proc. ASME. PVP2016, Volume 6A: Materials and Fabrication, V06AT06A028, July 17–21, 2016

Paper No: PVP2016-63830

DOI: https://doi.org/10.1115/PVP2016-63830

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Topics: Fracture (Materials), Stability, Stress, Pipes, Fracture mechanics, American Petroleum Institute, Collapse, Dimensions, Ductile fracture, Fitness-for-service

Proceedings Papers

Comparison of Calculated Crack Growth Values Using Unloading Compliance and d-c EP During SENT Testing

Y. Hioe, S. Kalyanam, G. M. Wilkowski

Proc. ASME. IPC2016, Volume 2: Pipeline Safety Management Systems; Project Management, Design, Construction and Environmental Issues; Strain Based Design; Risk and Reliability; Northern Offshore and Production Pipelines, V002T06A015, September 26–30, 2016

Paper No: IPC2016-64630

DOI: https://doi.org/10.1115/IPC2016-64630

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Topics: Fracture (Materials), Testing, Fracture toughness, Pipelines, Pipes, Surface cracks, Arctic region, Brittleness, Design, Experimental methods

Journal citation

NARROW

Strain Based Damage Model Predictions of Ductile Crack Growth in Multiple Fracture Specimen Geometries

Modeling the Fracture Behavior of SEN(T) Specimens With Crack In Heat-Affected-Zone

Secondary Stress Weighting Factor and Plastic Reduction Factor for Circumferential Surface Cracked Pipe and Elbow Tests at Elevated Temperature and Internal Pressure

Determination of Crack-Initiation in Fracture Toughness Testing Using an Experimental Key-Curve Methodology

Mode Mixity in the Fracture Toughness Evaluation of Heat-Affected-Zone Material Using SEN(T) Experiment

Secondary Stress Weighting Factor and Plastic Reduction Factor of Surface Cracked Pipes Under Bending

Flaw Design for d-c EP Monitoring of Crack Initiation and Growth During Full-Size Pipe Experiments

Investigation of Circumferential Internal Surface-Cracked Pipes and Elbows Tested at Conditions Similar to PWR and an “Apparent Net-Section-Collapse” Prediction Methodology

Constraint Effects in Slow Crack Growth Test Methods for Service Life Prediction of High Density Polyethylene Piping

Constraint Effects of Surface Crack Depth on Toughness: Experimental and Numerical Assessments

Direct-Current Electric Potential (D-C EP) Technique Validation Through an Experimental and Computational Study on Pipe With Surface Crack

Role of Constraint in Specimen Geometries When Evaluating Fracture Toughness/Material Fracture Resistance for a Surface-Flawed Elbow

Fracture Toughness Variation With Flaw Depth in Various Specimen Geometries and Role of Constraint in Material Fracture Resistance

“Apparent Net-Section-Collapse” Methodology for Circumferential Surface Flaws in Piping

Modeling of Pipe System Behavior With Circumferential Surface Crack for Secondary Stress Margin Assessment

Development of Secondary Stress Weighting Factor and Plastic Reduction Factor From Moment-Rotation Curves of Surface Cracked Pipe Tests

Comparison of Parent and Butt-Fusion Material Properties of Unimodal High-Density Polyethylene

Evaluation of the Lowest Temperature for Ductile Crack Initiation in an Irradiated RPV

Validation of Axial Crack Stability Assessment Methods in xLPR Version 2.0 Code

Comparison of Calculated Crack Growth Values Using Unloading Compliance and d-c EP During SENT Testing

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