The influence of biaxial loading on branching of a dissolution driven stress corrosion crack

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

Stress corrosion cracking occurs due to the synergistic interaction between mechanical load and corrosion reactions. In this study, branching during anodic dissolution driven crack growth is studied using an adaptive FE procedure. The crack has an inherent blunt tip due to the dissolution, and the growth is treated as a moving boundary problem with a strain-assisted evolution law. Simulations are performed with different degrees of load biaxiality. It is found that increasing biaxiality promotes branching. No conditions for when branching takes place are found. Crack growth rates for branches are investigated, and it is found that, after an initial acceleration, constant growth rates can be reached, as well as decreasing speed and eventual arrest. The influence of T-stresses and perturbations sensitivity are discussed. (c) 2010 Elsevier Ltd. All rights reserved.

Details

Authors
  • Christina Bjerkén
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Materials Engineering

Keywords

  • Biaxial loading, Stress corrosion cracking, Branching, Finite element method, Crack growth
Original languageEnglish
Title of host publicationEngineering Fracture Mechanics
PublisherElsevier
Pages1989-1997
Volume77
Publication statusPublished - 2010
Publication categoryResearch
Peer-reviewedYes
Event3rd International Conference on Crack Paths, 2009 - Venice, ITALY, Venice, Italy
Duration: 2009 Sep 232009 Sep 25
Conference number: 3

Publication series

Name
Number11
Volume77
ISSN (Print)0013-7944

Conference

Conference3rd International Conference on Crack Paths, 2009
Abbreviated titleCP 2009
CountryItaly
CityVenice
Period2009/09/232009/09/25