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 journalArticlepeer-review

    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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