Arrest of fast mode-i fracture in an elastic-viscoplastic transition zone

J. Aboudi*, J. D. Achenbach

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Arrest of a rapidly propagating Mode-I crack has been investigated for a crack which initially propagates in an elastic solid, and then enters a region of viscoplastic material properties. The transition to the viscoplastic behavior has been modeled by a gradual process which starts at a certain time at which the constitutive relations change in a time-wise manner from elastic to elastic-viscoplastic. The solution to the transient problem has been obtained numerically by a finite-difference procedure. Arrest of a crack in a perfectly elastic material has been treated as a special case. Field quantities such as the effective plastic strain, and the plastic work, have been computed, and their relation to arrest criteria have been explored. Both deformations in plane stress and plane strain have been considered.

Original languageEnglish (US)
Pages (from-to)109-119
Number of pages11
JournalEngineering Fracture Mechanics
Volume18
Issue number1
DOIs
StatePublished - 1983

ASJC Scopus subject areas

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

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