Calculation of a lower bound ratchet limit part 1 – Theory, numerical implementation and verification

Haofeng Chen, James Michael Ure, David Tipping

Research output: Contribution to journalArticle

18 Citations (Scopus)
249 Downloads (Pure)

Abstract

It is important to be able to calculate the ratchet limit of a component when performing integrity assessments of plant components. This paper details the addition of a lower bound ratchet limit calculation to the Linear Matching Method. The extension of Melan's theorem into the alternating plasticity region is explained, followed by its implementation into the Linear Matching Method calculation procedure. Finally, the convergence properties of this method are analysed by the analysis of a plate with a central hole subject to cyclic thermal and mechanical loading
Original languageEnglish
Pages (from-to)361-368
Number of pages8
JournalEuropean Journal of Mechanics - A/Solids
Volume37
Early online date18 Apr 2012
DOIs
Publication statusPublished - Jan 2013

Keywords

  • shakedown
  • ratchet limit
  • lower bound
  • linear matching method

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