Elastic-plastic behaviours of pressurised tubes under cyclic thermal stresses with temperature gradients

  • Chang Sik Oh
  • , Yun Jae Kim*
  • , Kee Bong Yoon
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Elastic-plastic behaviours of pressurised tubes under cyclic thermal stresses are investigated, incorporating temperature (and resulting the yield strength) gradient through the tube thickness. Based on analytical investigations, explicit equations for various stress regimes representing elastic-plastic behaviours are obtained. In the limiting case of no temperature (and yield strength) gradient through the thickness, proposed equations recover those for the well-known Bree diagram. The proposed results are then validated against the results from full-cyclic elastic-plastic finite element analysis.

    Original languageEnglish
    Pages (from-to)245-253
    Number of pages9
    JournalInternational Journal of Pressure Vessels and Piping
    Volume87
    Issue number5
    DOIs
    Publication statusPublished - 2010 May

    Bibliographical note

    Funding Information:
    This research is supported by the Basic Research Program (R01-2008-000-11891-0), Basic Atomic Energy Research Institute and Engineering Research Center (No. 2009-0063170), funded by the Korea Science & Engineering Foundation .

    Keywords

    • Cyclic thermal stresses
    • Elastic-plastic behaviour
    • Pressurised pipe
    • Ratchetting
    • Reverse plasticity
    • Shakedown
    • Temperature and strength gradient

    ASJC Scopus subject areas

    • General Materials Science
    • Mechanics of Materials
    • Mechanical Engineering

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