Plastic limit loads for cracked large bore branch junction

Man Sik Myeong, Yun Jae Kim, P. J. Budden

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


This paper reports plastic limit loads for a cracked large bore branch junction, based on three-dimensional finite element limit analyses using elastic-perfectly plastic materials. Part-through surface and through-wall cracks are postulated in the intersection. For loading conditions, internal pressure and (in-plane and out-of-plane) bending to the branch pipe and to the run pipe are considered. The effect of the crack on limit loads is found to be significant for internal pressure and bending to the branch pipe, but not for bending to the run pipe. The large geometry change effect for bending to the branch pipe is briefly discussed.

Original languageEnglish
Pages (from-to)2298-2309
Number of pages12
JournalEngineering Fracture Mechanics
Issue number11
Publication statusPublished - 2011 Jul
Externally publishedYes


  • Finite element limit analysis
  • Large bore branch
  • Limit load
  • Part-through crack

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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