Effect of strain hardening constitutive relations on weld residual stress simulation of dissimilar metal weld

Jian Chen; Gaoqiang Chen; Xinghua Yu; Zhili Feng; Paul Crooker

doi:10.1115/PVP201545748

Effect of strain hardening constitutive relations on weld residual stress simulation of dissimilar metal weld

Jian Chen, Gaoqiang Chen, Xinghua Yu, Zhili Feng, Paul Crooker

Materials Joining

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

Weld residual stress (WRS) in dissimilar metal welds (DMWs) has been identified as an important driver for primary water stress corrosion cracking, which is observed in nuclear power plant safety-related components. In this work, a newly developed dynamic strain hardening rule is implemented in finite element (FE) thermal-mechanical model to simulate the residual stress distribution in a dissimilar metal weld studied in a recent NRC/EPRI Round Robin study. This new dynamic strain hardening constitutive rule takes into account the effect of dynamic recovery and recrystallization at elevated temperatures on the strain hardening behavior during welding. Weld residual stresses calculated using the new dynamic strain hardening rule are compared to those with the conventional strain hardening ones (isotropic and kinematic), as well as the experimental measurement data. The new dynamic strain hardening rule results in improvements in WRS prediction.

Original language	English
Title of host publication	Materials and Fabrication
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791856994, 9780791856994, 9780791856994, 9780791856994
DOIs	https://doi.org/10.1115/PVP201545748
State	Published - 2015
Event	ASME 2015 Pressure Vessels and Piping Conference, PVP 2015 - Boston, United States Duration: Jul 19 2015 → Jul 23 2015

Publication series

Name	American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume	6A-2015
ISSN (Print)	0277-027X

Conference

Conference	ASME 2015 Pressure Vessels and Piping Conference, PVP 2015
Country/Territory	United States
City	Boston
Period	07/19/15 → 07/23/15

Funding

This research is sponsored by Electric Power Research Institute (EPRI). Mr. Paul Crooker is the program manager at EPRI. Oak Ridge National Laboratory is managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract DE-AC05-00OR22725.

Funders	Funder number
U.S. Department of Energy	DE-AC05-00OR22725
Oak Ridge National Laboratory
Electric Power Research Institute

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10.1115/PVP201545748

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Chen, J., Chen, G., Yu, X., Feng, Z., & Crooker, P. (2015). Effect of strain hardening constitutive relations on weld residual stress simulation of dissimilar metal weld. In Materials and Fabrication (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 6A-2015). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/PVP201545748

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title = "Effect of strain hardening constitutive relations on weld residual stress simulation of dissimilar metal weld",

abstract = "Weld residual stress (WRS) in dissimilar metal welds (DMWs) has been identified as an important driver for primary water stress corrosion cracking, which is observed in nuclear power plant safety-related components. In this work, a newly developed dynamic strain hardening rule is implemented in finite element (FE) thermal-mechanical model to simulate the residual stress distribution in a dissimilar metal weld studied in a recent NRC/EPRI Round Robin study. This new dynamic strain hardening constitutive rule takes into account the effect of dynamic recovery and recrystallization at elevated temperatures on the strain hardening behavior during welding. Weld residual stresses calculated using the new dynamic strain hardening rule are compared to those with the conventional strain hardening ones (isotropic and kinematic), as well as the experimental measurement data. The new dynamic strain hardening rule results in improvements in WRS prediction.",

author = "Jian Chen and Gaoqiang Chen and Xinghua Yu and Zhili Feng and Paul Crooker",

note = "Publisher Copyright: Copyright {\textcopyright} 2015 by ASME.; ASME 2015 Pressure Vessels and Piping Conference, PVP 2015 ; Conference date: 19-07-2015 Through 23-07-2015",

year = "2015",

doi = "10.1115/PVP201545748",

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Chen, J, Chen, G, Yu, X, Feng, Z & Crooker, P 2015, Effect of strain hardening constitutive relations on weld residual stress simulation of dissimilar metal weld. in Materials and Fabrication. American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, vol. 6A-2015, American Society of Mechanical Engineers (ASME), ASME 2015 Pressure Vessels and Piping Conference, PVP 2015, Boston, United States, 07/19/15. https://doi.org/10.1115/PVP201545748

Effect of strain hardening constitutive relations on weld residual stress simulation of dissimilar metal weld. / Chen, Jian; Chen, Gaoqiang; Yu, Xinghua et al.
Materials and Fabrication. American Society of Mechanical Engineers (ASME), 2015. (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 6A-2015).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - Weld residual stress (WRS) in dissimilar metal welds (DMWs) has been identified as an important driver for primary water stress corrosion cracking, which is observed in nuclear power plant safety-related components. In this work, a newly developed dynamic strain hardening rule is implemented in finite element (FE) thermal-mechanical model to simulate the residual stress distribution in a dissimilar metal weld studied in a recent NRC/EPRI Round Robin study. This new dynamic strain hardening constitutive rule takes into account the effect of dynamic recovery and recrystallization at elevated temperatures on the strain hardening behavior during welding. Weld residual stresses calculated using the new dynamic strain hardening rule are compared to those with the conventional strain hardening ones (isotropic and kinematic), as well as the experimental measurement data. The new dynamic strain hardening rule results in improvements in WRS prediction.

AB - Weld residual stress (WRS) in dissimilar metal welds (DMWs) has been identified as an important driver for primary water stress corrosion cracking, which is observed in nuclear power plant safety-related components. In this work, a newly developed dynamic strain hardening rule is implemented in finite element (FE) thermal-mechanical model to simulate the residual stress distribution in a dissimilar metal weld studied in a recent NRC/EPRI Round Robin study. This new dynamic strain hardening constitutive rule takes into account the effect of dynamic recovery and recrystallization at elevated temperatures on the strain hardening behavior during welding. Weld residual stresses calculated using the new dynamic strain hardening rule are compared to those with the conventional strain hardening ones (isotropic and kinematic), as well as the experimental measurement data. The new dynamic strain hardening rule results in improvements in WRS prediction.

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Effect of strain hardening constitutive relations on weld residual stress simulation of dissimilar metal weld

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