The effects of residual stress on elastic-plastic fracture propagation and stability

H. E. Coules*, G. C.M. Horne, K. Abburi Venkata, T. Pirling

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

18 Citations (Scopus)
458 Downloads (Pure)

Abstract

Residual stresses in materials affect their resistance to the initiation of fracture and to subsequent crack growth. Using full-field strain measurements and finite element analysis we demonstrate that the effect of residual stress on a material's crack growth resistance curve can be understood using elastic-plastic fracture mechanics. It is shown that Lei's modified J-integral formulation (Jmod) is a good predictor of the load vs crack extension behaviour of an elastic-plastic material containing residual stresses.

Original languageEnglish
Pages (from-to)131-140
Number of pages10
JournalMaterials and Design
Volume143
Early online date2 Feb 2018
DOIs
Publication statusPublished - 5 Apr 2018

Keywords

  • Residual stress
  • Fracture
  • Neutron diffraction
  • Digital image correlation
  • Finite element analysis

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