Finite Element Welding Residual Stress Analysis of CRDM Penetration Nozzles

Seung Jae Kim, Eui Kyun Park, Hong Yeol Bae, Ju Hee Kim, Nam Su Huh, Yun Jae Kim

Research output: Contribution to journalArticlepeer-review

Abstract

This article investigates numerically welding residual stress distributions of a tube with J-groove weld in control rod drive mechanisms of a pressurized nuclear reactor vessel. Parametric study is performed for the effect of the tube location, tube dimensions, and material's yield strength. It is found that residual stresses increase with increasing the inclination angle of the tube, and the up-hill side is the most critical. For thicker tube, residual stresses decrease. For material's yield strength, both axial and hoop residual stresses tend to increase with increasing the yield strength of Alloy 600. Furthermore, axial stresses tend to increase with increasing yield strength of Alloys 82/182.

Original languageEnglish
Article number011503
JournalJournal of Pressure Vessel Technology, Transactions of the ASME
Volume144
Issue number1
DOIs
Publication statusPublished - 2022 Feb

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Mechanics of Materials
  • Mechanical Engineering

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