A strip-yield rate-dependent model for rapid loading conditions

Research output: Contribution to journalArticle

Abstract

In order to obtain quantitative information of the effects of rate dependent plasticity on crack growth initiation, a strip yield (Dugdale) model for small-scale yielding is developed. The adopted rate dependence of the flow stress is of the Perzyna type. Numerical solutions are obtained for different KI(t) functions. By adopting both a displacement-criterion and a stress-criterion for crack growth, rate effects on the dynamic Fracture toughness are studied.

Details

Authors
External organisations
  • Uppsala University
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Mathematics
  • Applied Mechanics

Keywords

Original languageEnglish
Pages (from-to)429-436
Number of pages8
JournalEngineering Fracture Mechanics
Volume33
Issue number3
Publication statusPublished - 1989 Jan 1
Publication categoryResearch
Peer-reviewedYes
Externally publishedYes