Limit loads for circumferential cracked pipe bends under in-plane bending

Yun Jae Kim, Chang Sik Oh, Bo Kyu Park, Young Il Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper presents limit loads for circumferential cracked pipe bends under in-plane bending, based on detailed three-dimensional finite element limit analyses. FE analyses are performed based on elastic-perfectly-plastic materials and the geometrically linear assumption. Both through-wall cracks and part-through surface cracks (having constant depths) are considered, together with different crack locations (extrados and intrados). Based on the FE results, closed-form approximations are proposed for plastic limit loads of pipe bends. It is found that limit loads of pipe bends are smaller than those of straight pipes, but are close for deep and long cracks.

Original languageEnglish
Pages (from-to)38-42
Number of pages5
JournalKey Engineering Materials
Volume321-323 I
DOIs
Publication statusPublished - 2006 Jan 1

Keywords

  • Circumferential cracked pipe bend
  • FE limit analysis
  • In-plane bending
  • Limit loads

ASJC Scopus subject areas

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

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