A Chaboche-based evolutionary cyclic plasticity model is proposed to model the elastic-plastic behavior of 508 Low Alloy Steel (LAS), a commonly used material for Light Water Reactor (LWR), under variable amplitude loading. A novel parameter estimation technique is developed to incorporate the amplitude dependency of the material behavior into the earlier developed time-dependent material models based on constant amplitude fatigue test data. The resulting new material model can be referred as time-dependent-amplitude-independent material models. Variable amplitude fatigue tests under different environmental conditions (in air and pressurized water reactor (PWR) coolant water at 300°C) are analytically/mechanistically modeled. The analytical modeling results show that the time-dependent-amplitude-independent material parameters are able to capture the stress-strain state under variable amplitude fatigue loading. The developed model and reported material parameters can be utilized for more accurate stress analysis of safety-critical reactor components under real-life loading scenarios with variable/random loading transients. Recently a report on related 508 LAS material characterization work has been published by Argonne National Laboratory [1]. In this work a summary of the related work is presented.
Skip Nav Destination
ASME 2017 Pressure Vessels and Piping Conference
July 16–20, 2017
Waikoloa, Hawaii, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-5790-8
PROCEEDINGS PAPER
Fatigue Modeling of 508 LAS Under Variable Amplitude Loading: A Mechanistic Based Analytical Approach
Bipul Barua,
Bipul Barua
Argonne National Laboratory, Lemont, IL
Search for other works by this author on:
Subhasish Mohanty,
Subhasish Mohanty
Argonne National Laboratory, Lemont, IL
Search for other works by this author on:
William K. Soppet,
William K. Soppet
Argonne National Laboratory, Lemont, IL
Search for other works by this author on:
Saurindranath Majumdar,
Saurindranath Majumdar
Argonne National Laboratory, Lemont, IL
Search for other works by this author on:
Krishnamurti Natesan
Krishnamurti Natesan
Argonne National Laboratory, Lemont, IL
Search for other works by this author on:
Bipul Barua
Argonne National Laboratory, Lemont, IL
Subhasish Mohanty
Argonne National Laboratory, Lemont, IL
William K. Soppet
Argonne National Laboratory, Lemont, IL
Saurindranath Majumdar
Argonne National Laboratory, Lemont, IL
Krishnamurti Natesan
Argonne National Laboratory, Lemont, IL
Paper No:
PVP2017-65876, V01AT01A026; 8 pages
Published Online:
October 26, 2017
Citation
Barua, B, Mohanty, S, Soppet, WK, Majumdar, S, & Natesan, K. "Fatigue Modeling of 508 LAS Under Variable Amplitude Loading: A Mechanistic Based Analytical Approach." Proceedings of the ASME 2017 Pressure Vessels and Piping Conference. Volume 1A: Codes and Standards. Waikoloa, Hawaii, USA. July 16–20, 2017. V01AT01A026. ASME. https://doi.org/10.1115/PVP2017-65876
Download citation file:
27
Views
Related Proceedings Papers
Related Articles
Revised Proposal of Fatigue Life Correction Factor F en for Carbon and Low Alloy Steels in LWR Water Environments
J. Pressure Vessel Technol (November,2004)
Thermomechanical Fatigue Behavior of a Directionally Solidified Ni-Base Superalloy
J. Eng. Mater. Technol (July,2005)
Finite Element Based Full-Life Cyclic Stress Analysis of 316 Grade Nuclear Reactor Stainless Steel Under Constant, Variable, and Random Fatigue Loading
J. Pressure Vessel Technol (October,2018)
Related Chapters
LOCA Frequencies Estimated from Operating Experience (PSAM-0282)
Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)
Modeling of SAMG Operator Actions in Level 2 PSA (PSAM-0164)
Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)
Lessons Learned: NRC Experience
Continuing and Changing Priorities of the ASME Boiler & Pressure Vessel Codes and Standards