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

Chang Sik Oh, Yun Jae Kim, Kee Bong Yoon

Research output: Contribution to journalArticle

3 Citations (Scopus)

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 1

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Keywords

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

ASJC Scopus subject areas

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

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