Effect of local wall thinning on limit loads for piping branch junctions. Part 2: In-plane bending

K. H. Lee, K. M. Ryu, Y. J. Kim, C. Y. Park

Research output: Contribution to journalArticle

7 Citations (Scopus)


This paper presents plastic limit loads of piping branch junctions with local wall thinning under in-plane bending, based on systematic three-dimensional finite element (FE) limit analyses using elastic-perfectly plastic materials. As in Part 1, an ideal branch junction without weld or reinforcement around the intersection is considered with two locations of wall thinning; one in the run pipe (opposite to the intersection), and the other in the branch pipe (next to the intersection). Based on FE results, effects of thinning geometries on plastic limit moments are quantified and simple approximations of plastic limit loads for piping branch junctions with local wall thinning under in-plane bending are proposed.

Original languageEnglish
Pages (from-to)581-594
Number of pages14
JournalJournal of Strain Analysis for Engineering Design
Issue number7
Publication statusPublished - 2008 Sep 26
Externally publishedYes



  • Branch junction
  • FE limit analysis
  • Limit bending moment
  • Local wall thinning

ASJC Scopus subject areas

  • Modelling and Simulation
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

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