Fe welding residual stress analysis and validation for spent nuclear fuel canisters

Jae Min Gim, Ji Soo Kim, Yun-Jae Kim, Poh Sang Lam

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Spent Nuclear Fuel (SNF) Canisters are large welded stainless steel structures without post-weld heat treatment, possibly leaving large welding residual stresses (WRS). For CISCC assessments for SNF canisters, the estimation of the weld residual stress accurately is very important because tensile stress can make crack initiate. In this paper, the welding procedure for the SNF canisters is simulated through a FE analysis. Two-dimensional FE WRS analysis is performed for both longitudinal welding and circumferential welding. To simulate the welding procedure, heat analysis and stress analysis are conducted separately. The results are compared with the experimental mock-up canister WRS data conducted at the Sandia National Laboratories. It seems that FEA could sufficiently confirm the experimental data.

Original languageEnglish
Title of host publicationMaterials and Fabrication
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume6B-2018
ISBN (Electronic)9780791851685
Publication statusPublished - 2018 Jan 1
EventASME 2018 Pressure Vessels and Piping Conference, PVP 2018 - Prague, Czech Republic
Duration: 2018 Jul 152018 Jul 20

Other

OtherASME 2018 Pressure Vessels and Piping Conference, PVP 2018
CountryCzech Republic
CityPrague
Period18/7/1518/7/20

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ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Gim, J. M., Kim, J. S., Kim, Y-J., & Lam, P. S. (2018). Fe welding residual stress analysis and validation for spent nuclear fuel canisters. In Materials and Fabrication (Vol. 6B-2018). American Society of Mechanical Engineers (ASME).