Finite-element simulation of residual stress induced by split-sleeve cold-expansion process of holes

V. Nigrelli, S. Pasta

Research output: Contribution to journalArticlepeer-review

Abstract

A three-dimensional finite-element simulation was conducted for a split-sleeve cold-expansion process in order to determine the residual stress field around an expanded hole. The commercial FEA software DEFORM-3D™, a Lagrangian implicit code designed for metal forming processes, was used to model the cold-expansion process of a fastener hole. The results show a through-thickness residual stress field in good agreement with the analytical solution developed by Guo. Moreover, the simulation has highlighted the effect of the split sleeve and the plate thickness on the residual stress field.

Original languageEnglish
Pages (from-to)290-296
Number of pages7
JournalJournal of Materials Processing Technology
Volume205
Issue number1-3
DOIs
Publication statusPublished - Aug 26 2008

Keywords

  • Cold-expansion of holes
  • Fastener holes
  • Finite-element simulation
  • Residual stress

ASJC Scopus subject areas

  • Materials Science(all)

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