Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Grain boundary influence during short fatigue crack growth using a discrete dislocation technique

In English

Författare

Summary, in English

We have studied the effect of a grain boundary in front of a short edge crack on its propagation under cyclic loading conditions in bcc iron. The used model is a combination of a discrete dislocation formulation and a boundary element approach where the boundary is described by dislocation dipole elements, while the local plasticity is modeled by discrete dislocations. The grain boundary is considered impenetrable, but dislocations positioned in the vicinity of a grain boundary give raise to high stresses in neighboring grains which, eventually, results in nucleation of dislocations and a spread of the plastic zone into the next grain.

Avdelning/ar

Publiceringsår

2008

Språk

Engelska

Sidor

150-153

Publikation/Tidskrift/Serie

Strength of Materials

Volym

40

Issue

1

Dokumenttyp

Artikel i tidskrift

Förlag

Springer

Ämne

  • Applied Mechanics

Nyckelord

  • discrete dislocation
  • atigue
  • grain boundary

Status

Published

Forskningsgrupp

  • Mechanics

ISBN/ISSN/Övrigt

  • ISSN: 0039-2316