Limit loads for circular wall-thinned feeder pipes subjected to bending and internal pressure

Jin Ho Je, Kuk Hee Lee, Ha Joo Chung, Jong Sung Kim, Yun Jae Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Flow Accelerated Corrosion (FAC) occurring during in-service conditions results in localized wall-thinning in the feeder pipes of CANDU. The wall-thinning of the feeder pipes is the main degradation mechanisms affecting the integrity of piping systems. In this paper, we assess the integrity of wall-thinned feeder pipes by limit load analysis. The limit loads for wall-thinning feeder pipes subjected to in-plane bending and internal pressure were determined on the basis of finte element limit analyses. The limit loads are determined from the results of limit analyses of elasticperfectly-plastic materials using the large geometry change. Closed-form approximations of limit load solutions for wall-thinning feeder pipes subjected to in-plane bending and pressure are proposed.

Original languageEnglish
Pages (from-to)1675-1680
Number of pages6
JournalTransactions of the Korean Society of Mechanical Engineers, A
Volume34
Issue number11
DOIs
Publication statusPublished - 2010 Nov

Keywords

  • Bending
  • CANDU
  • Circular wall-thinning
  • Feeder pipe
  • Internal pressure
  • Limit load

ASJC Scopus subject areas

  • Mechanical Engineering

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