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P. Krishnaswamy
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Proceedings Papers

Full-Scale Hydrostatic Test of Internal CFRP Repair on a Degraded Pipe With a Postulated Flaw for Short-Term Loading in Safety Related Nuclear Applications

M. Uddin, F. Orth, Y. Hioe, P. Krishnaswamy, L. Smith, C. Basavaraju
Proc. ASME. PVP2021, Volume 4: Materials and Fabrication, V004T06A022, July 13–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: PVP2021-63062
https://doi.org/10.1115/PVP2021-63062
View Paper titled, Full-Scale Hydrostatic Test of Internal CFRP Repair on a Degraded Pipe With a Postulated Flaw for Short-Term Loading in Safety Related Nuclear Applications
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Topics: Carbon reinforced plastics, Hydrostatic testing, Maintenance, Pipes, Safety, Design, Boilers, Failure, Failure mechanisms, Glass fibers
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
Publisher: American Society of Mechanical Engineers
Paper No: PVP2021-60449
https://doi.org/10.1115/PVP2021-60449
View Paper titled, Secondary Stress Weighting Factor and Plastic Reduction Factor for Circumferential Surface Cracked Pipe and Elbow Tests at Elevated Temperature and Internal Pressure
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Topics: Pipes, Pressure, Stress, Temperature, Fracture (Materials), Rotation, Displacement, Design, Fracture toughness, Pipe sizes
Proceedings Papers

Uncertainty Management in Automotive Crash: From Analysis to Simulation

J. Marczyk, R. Hoffmann, P. Krishnaswamy
Proc. ASME. IDETC-CIE2000, Volume 2: 26th Design Automation Conference, 411-420, September 10–13, 2000
Publisher: American Society of Mechanical Engineers
Paper No: DETC2000/DAC-14240
https://doi.org/10.1115/DETC2000/DAC-14240
View Paper titled, Uncertainty Management in Automotive Crash: From Analysis to Simulation
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Topics: Simulation, Traffic accidents, Uncertainty
Proceedings Papers

Materials Degradation and Strength Reduction Factors of CFRP and Their Applications in Repair of Nuclear Safety Related Piping

M. F. Uddin, S. Pothana, P. Krishnaswamy, L. Smith, C. Basavaraju
Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A028, August 3, 2020
Publisher: American Society of Mechanical Engineers
Paper No: PVP2020-21552
https://doi.org/10.1115/PVP2020-21552
View Paper titled, Materials Degradation and Strength Reduction Factors of CFRP and Their Applications in Repair of Nuclear Safety Related Piping
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Topics: Carbon reinforced plastics, Maintenance, Materials degradation, Pipes, Safety, Design, Aerospace industry, Creep, Laminates, Safety engineering
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
Publisher: American Society of Mechanical Engineers
Paper No: PVP2020-21532
https://doi.org/10.1115/PVP2020-21532
View Paper titled, Investigation of Circumferential Internal Surface-Cracked Pipes and Elbows Tested at Conditions Similar to PWR and an “Apparent Net-Section-Collapse” Prediction Methodology
Open the PDF for Investigation of Circumferential Internal Surface-Cracked Pipes and Elbows Tested at Conditions Similar to PWR and an “Apparent Net-Section-Collapse” Prediction Methodology in another window
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
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. August 2020, 142(4): 041508.
Paper No: PVT-17-1232
https://doi.org/10.1115/1.4046884
Published Online: May 22, 2020
View Articletitled, Constraint Effects in Slow Crack Growth Test Methods for Service Life Prediction of High Density Polyethylene Piping
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Topics: Failure, Finite element analysis, Fracture (Materials), Pipes, Polyethylene pipes, Service life (Equipment), Stress, Resins, Density
Proceedings Papers

Perspectives on Safety Margin Associated With Internal Repair of Buried Class 2 and 3 Safety Related Piping Using Carbon Fiber Reinforced Polymer Composites

M. F. Uddin, P. Krishnaswamy, C. Basavaraju, K. A. Manoly
Proc. ASME. PVP2018, Volume 6A: Materials and Fabrication, V06AT06A041, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84972
https://doi.org/10.1115/PVP2018-84972
View Paper titled, Perspectives on Safety Margin Associated With Internal Repair of Buried Class 2 and 3 Safety Related Piping Using Carbon Fiber Reinforced Polymer Composites
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Topics: Carbon reinforced plastics, Composite materials, Maintenance, Pipes, Safety, Design, Stress, Aerospace industry, Boilers, Civil engineering
Journal Articles

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

P. Krishnaswamy, D.-J. Shim, S. Kalyanam
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. August 2017, 139(4): 041413.
Paper No: PVT-17-1002
https://doi.org/10.1115/1.4036658
Published Online: June 1, 2017
View Articletitled, Comparison of Parent and Butt-Fusion Material Properties of Unimodal High-Density Polyethylene
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Topics: Density, Displacement, Failure, Fracture (Materials), Materials properties, Pipes, Safety, Stress, Temperature, Nuclear industry
Proceedings Papers

Critical Flaw Size Evaluation in Butt-Fusion Joints of HDPE Pipes

S. Kalyanam, P. Krishnaswamy, E. M. Focht, D.-J. Shim, F. W. Brust, Y. Hioe
Proc. ASME. PVP2014, Volume 6B: Materials and Fabrication, V06BT06A041, July 20–24, 2014
Publisher: American Society of Mechanical Engineers
Paper No: PVP2014-28431
https://doi.org/10.1115/PVP2014-28431
View Paper titled, Critical Flaw Size Evaluation in Butt-Fusion Joints of HDPE Pipes
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Topics: Pipes, American Petroleum Institute, ASME Standards, Finite element analysis, Fitness-for-service, Density, Experimental methods, Hydrostatics, Joining, Nuclear industry
Proceedings Papers

Assessment of Slow Crack Growth Test Methodologies Used to Predict Service Life of High Density Polyethylene Piping

S. Kalyanam, P. Krishnaswamy, D.-J. Shim, Y. Hioe, S. Kawaguchi, T. Shimura, K. Numata
Proc. ASME. PVP2013, Volume 6B: Materials and Fabrication, V06BT06A044, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97416
https://doi.org/10.1115/PVP2013-97416
View Paper titled, Assessment of Slow Crack Growth Test Methodologies Used to Predict Service Life of High Density Polyethylene Piping
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Topics: Density, Fracture (Materials), Polyethylene pipes, Service life (Equipment), Pipes, Failure, Stress, Resins, Failure mechanisms, Testing
Proceedings Papers

Structural Integrity of HDPE Piping and Joints in Nuclear Safety-Related Applications

S. Kalyanam, P. Krishnaswamy, D.-J. Shim, Y. Hioe, E. Focht
Proc. ASME. ICONE20-POWER2012, Volume 4: Codes, Standards, Licensing, and Regulatory Issues; Fuel Cycle, Radioactive Waste Management and Decommissioning; Computational Fluid Dynamics (CFD) and Coupled Codes; Instrumentation and Controls; Fuels and Combustion, Materials Handling, Emissions; Advanced Energy Systems and Renewables (Wind, Solar, Geothermal); Performance Testing and Performance Test Codes, 51-62, July 30–August 3, 2012
Publisher: American Society of Mechanical Engineers
Paper No: ICONE20-POWER2012-54192
https://doi.org/10.1115/ICONE20-POWER2012-54192
View Paper titled, Structural Integrity of HDPE Piping and Joints in Nuclear Safety-Related Applications
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Topics: Pipes, Safety, Stress, Nuclear power stations, Service life (Equipment), ASME Boiler and Pressure Vessel Code, ASTM International, Fracture mechanics, Pressure, Rupture
Proceedings Papers

Lessons Learned for Nuclear Piping Integrity in New Reactors

G. Wilkowski, F. Brust, P. Krishnaswamy, K. Wichman, D.-J. Shim
Proc. ASME. PVP2011, Volume 1: Codes and Standards, 121-131, July 17–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: PVP2011-57941
https://doi.org/10.1115/PVP2011-57941
View Paper titled, Lessons Learned for Nuclear Piping Integrity in New Reactors
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Topics: Pipes, Fracture toughness, Design, Nuclear power stations, Piping systems, Anisotropy, Base metals, Cracking (Materials), Displacement, Dynamic analysis
Proceedings Papers

A Simplified Stress Intensity Factor Relation for Assessment of External Axial Flawed Safety-Related Nuclear Power Plant HDPE Piping

S. Kalyanam, P. Krishnaswamy, M. Uddin, D.-J. Shim
Proc. ASME. PVP2011, Volume 1: Codes and Standards, 335-342, July 17–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: PVP2011-57904
https://doi.org/10.1115/PVP2011-57904
View Paper titled, A Simplified Stress Intensity Factor Relation for Assessment of External Axial Flawed Safety-Related Nuclear Power Plant HDPE Piping
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Topics: Nuclear power stations, Pipes, Safety, Stress, Polyethylene pipes, Fracture (Materials), Water, ASME Boiler and Pressure Vessel Code, Engineering standards, Fluids
Proceedings Papers

Slow Crack Growth Resistance of Parent and Joint Materials From PE4710 Piping for Safety-Related Nuclear Power Plant Piping

S. Kalyanam, D.-J. Shim, P. Krishnaswamy, Y. Hioe
Proc. ASME. PVP2011, Volume 6: Materials and Fabrication, Parts A and B, 919-926, July 17–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: PVP2011-57874
https://doi.org/10.1115/PVP2011-57874
View Paper titled, Slow Crack Growth Resistance of Parent and Joint Materials From PE4710 Piping for Safety-Related Nuclear Power Plant Piping
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Topics: Fracture (Materials), Nuclear power stations, Pipes, Safety, Creep, Design, Failure, ASME Standards, Damage, Deformation
Proceedings Papers

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

D.-J. Shim, P. Krishnaswamy, E. Focht
Proc. ASME. PVP2009, Volume 6: Materials and Fabrication, Parts A and B, 1301-1308, July 26–30, 2009
Publisher: American Society of Mechanical Engineers
Paper No: PVP2009-78066
https://doi.org/10.1115/PVP2009-78066
View Paper titled, Comparison of Parent and Butt Fusion Material Properties of High Density Polyethylene
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Topics: Density, Materials properties, Fracture (Materials), Safety, Nuclear industry, Pipes, Failure, Piping systems, Water
Proceedings Papers

Considerations for Probabilistic Analyses to Assess Potential Changes to Large-Break LOCA Definition for ECCS Requirements

G. Wilkowski, P. Scott, S. Rahman, D. Rudland, R. Wolterman, P. Krishnaswamy, C. Fairbanks
Proc. ASME. ICONE10, 10th International Conference on Nuclear Engineering, Volume 4, 575-582, April 14–18, 2002
Publisher: American Society of Mechanical Engineers
Paper No: ICONE10-22659
https://doi.org/10.1115/ICONE10-22659
View Paper titled, Considerations for Probabilistic Analyses to Assess Potential Changes to Large-Break LOCA Definition for ECCS Requirements
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Topics: Emergency core cooling systems, Failure, Pipes, Probability, Pressure, Regulations, Acceptance criteria, Boilers, Containment buildings, Cracking (Materials)
Proceedings Papers

Seismic Considerations for the Transition Break Size: An Overview of the Methodology

G. Wilkowski, H. Xu, P. Krishnaswamy, N. Chokshi, S. Shaukat, A. Hiser, G. DeGrassi, J. J. Johnson, R. Olson
Proc. ASME. PVP2006-ICPVT-11, Volume 6: Materials and Fabrication, 103-117, July 23–27, 2006
Publisher: American Society of Mechanical Engineers
Paper No: PVP2006-ICPVT-11-93994
https://doi.org/10.1115/PVP2006-ICPVT-11-93994
View Paper titled, Seismic Considerations for the Transition Break Size: An Overview of the Methodology
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Topics: Accidents, Coolants, Emergency core cooling systems, Regulations, Risk
Journal Articles

Finite Element Analysis of History-Dependent Damage in Time-Dependent Fracture Mechanics

P. Krishnaswamy, F. W. Brust, N. D. Ghadiali
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. November 1993, 115(4): 339–347.
https://doi.org/10.1115/1.2929539
Published Online: November 1, 1993
View Articletitled, Finite Element Analysis of History-Dependent Damage in Time-Dependent Fracture Mechanics
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Topics: Damage, Finite element analysis, Fracture mechanics, Fracture (Materials), Creep, Constitutive equations, Algorithms, Hardening