Friction stress effects on mode I crack growth predictions

Q. Chen, V.S. Deshpande, E. van der Giessen, A. Needleman

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)
241 Downloads (Pure)

Abstract

The effect of a lattice friction stress on the monotonic growth of a plane strain mode I crack under small-scale yielding conditions is analyzed using discrete dislocation plasticity. When the friction stress is increased from zero to half the dislocation nucleation stress, the crack tip stress field changes from one characteristic of a plastic solid to one characteristic of an elastic solid, and the crack growth resistance decreases substantially.
Original languageEnglish
Article numberPII S1359-6462(02)00539-0
Pages (from-to)755 - 759
Number of pages5
JournalScripta Materialia
Volume48
Issue number6
DOIs
Publication statusPublished - 17-Mar-2003

Keywords

  • dislocation
  • theory
  • fracture
  • micromechanical modeling
  • DISCRETE DISLOCATION ANALYSIS
  • TRANSITION
  • METALS

Cite this