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

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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.

Detaljer

Författare
Externa organisationer
  • Uppsala universitet
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Matematik
  • Teknisk mekanik

Nyckelord

  • Fracture Mechanics, Fracture Processes, Fracture Criteria
Originalspråkengelska
Sidor (från-till)429-436
Antal sidor8
TidskriftEngineering Fracture Mechanics
Volym33
Utgåva nummer3
StatusPublished - 1989 jan 1
PublikationskategoriForskning
Peer review utfördJa
Externt publiceradJa

Bibliografisk information

Concerns the shift of fracture processes between slow and fast crack growth