Residual stress effects on fatigue crack growth in a Ti-6Al-4V friction stir weld

S. Pasta, A. P. Reynolds

Research output: Contribution to journalArticlepeer-review

Abstract

Recent studies have illustrated a predominant role of the residual stress on the fatigue crack growth in friction stir welded joints. In this study, the role of the residual stress on the propagation of fatigue cracks orthogonal to the weld direction in a friction stir welded Ti-6Al-4V joint was investigated. A numerical prediction of the fatigue crack growth rate in the presence of the residual stresses was carried out using AFGROW software; reasonable correspondence between the predictions and the experimental results were observed when the effects of residual stress were included in the simulation.

Original languageEnglish
Pages (from-to)569-580
Number of pages12
JournalFatigue and Fracture of Engineering Materials and Structures
Volume31
Issue number7
DOIs
Publication statusPublished - 2008

Keywords

  • Fatigue crack growth propagation
  • Friction stir welding
  • Residual stress
  • Titanium alloy

ASJC Scopus subject areas

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

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