Shakedown and limit analysis of 90° pipe bends under internal pressure, cyclic in-plane bending and cyclic thermal loading

Haofeng Chen, James Michael Ure, Tianbai Li, Weihang Chen, Donald Mackenzie

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21 Citations (Scopus)
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Abstract

The Linear Matching Method is used to create the shakedown limit and limit load interaction curves of 90 degree pipe bends for a range of bend factors. Two load cases are considered i) internal pressure and inplane bending (which includes opening, closing and reversed bending) and ii) internal pressure and a cyclic through wall temperature difference giving rise to thermal stresses. The effects of the ratios of bend radius to pipe mean radius (R/r) and mean radius to wall thickness (r/t) on the limit load and shakedown behaviour are presented.
Original languageEnglish
Pages (from-to)213-222
Number of pages10
JournalInternational Journal of Pressure Vessels and Piping
Volume88
Issue number5-7
Early online date12 May 2011
DOIs
Publication statusPublished - May 2011

Keywords

  • pipe bend
  • shakedown
  • limit load
  • reverse plasticity
  • ratchetting

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