J-integral estimate for circumferential cracked pipes under primary and secondary stress in R6, RCC-MR A16

Hyun Suk Nam, Chang Young Oh, Yun Jae Kim

Research output: Contribution to journalArticlepeer-review

Abstract

This paper provides a comparison of the J-integral estimation method under combined primary and secondary stress in the R6, RCC-MR A16 code. The comparisons of each code are based on finite element analysis using ABAQUS with regard to the crack shape, crack depth, and magnitude of secondary load. The estimate of the R6 code is conservative near Lr = 1, and that of the RCC-MR A16 code is conservative near Lr = 0. As a result, this paper proposes a modified method of J-integral estimation in the R6, RCC-MR A16 code. The J-integral using the modified method corresponds to the finite element analysis result.

Original languageEnglish
Pages (from-to)631-640
Number of pages10
JournalTransactions of the Korean Society of Mechanical Engineers, A
Volume37
Issue number5
DOIs
Publication statusPublished - 2013 May
Externally publishedYes

Keywords

  • J-Integral
  • Primary Stress
  • Reference Stress
  • Secondary Stress
  • V-Factor

ASJC Scopus subject areas

  • Mechanical Engineering

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