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.

Influence from geometrical features on the growth rate of a micro-structurally short fatigue crack

In English

Författare

Summary, in English

The influence on the crack growth rate on a micro-structurally short edge crack subjected to fatigue loading from changes in crack length, distance to grain boundaries and applied load has been investigated. The crack is assumed to grow in a single shear mechanism due to nucleation, glide and annihilation of dislocations along preferred slip planes in the material. The external geometry is modelled by distributed dislocation dipole elements in a boundary element approach under quasi-static and plane strain conditions. The evolving plasticity is described by individual discrete dislocations along a slip plane emanating from the crack in the crack direction. The crack growth rate is shown to be controlled by the plasticity, which in turn is controlled by geometrical parameters in combination with the external load. (C) 2010 Elsevier Ltd. All rights reserved.

Avdelning/ar

Publiceringsår

2010

Språk

Engelska

Sidor

1907-1913

Publikation/Tidskrift/Serie

Engineering Fracture Mechanics

Volym

77

Issue

11

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Applied Mechanics

Nyckelord

  • Grain
  • Crack growth rate
  • Short fatigue crack
  • Discrete dislocations
  • boundary

Conference name

3rd International Conference on Crack Paths, 2009

Conference date

2009-09-23 - 2009-09-25

Conference place

Venice, Italy

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1873-7315