Effects of local wall thinning on net-section limit loads for pipes under combined pressure and bending

Chang Kyun Oh, Yun-Jae Kim, Chi Yong Park

Research output: Contribution to journalArticle

20 Citations (Scopus)


This paper provides plastic limit loads of pipes with local wall thinning under combined pressure and bending, by quantifying effects of the axial extent and the shape of local wall thinning. The effect of the axial extent on plastic limit loads is not so significant for bending but could be more significant for internal pressure. It is also found that the effect of the shape of local wall thinning on limit loads could be significant. Thus idealization of local wall thinning as a rectangular shape rather than a circular one could lead to significantly conservative estimates of maximum loads, which is also supported by comparison with published full-scale pipe test data.

Original languageEnglish
Pages (from-to)261-273
Number of pages13
JournalNuclear Engineering and Design
Issue number2
Publication statusPublished - 2009 Feb 1
Externally publishedYes


ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality
  • Waste Management and Disposal
  • Materials Science(all)
  • Nuclear and High Energy Physics

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