The effect of a low angle grain boundary on the short fatigue crack growth
(2011) 6th International Conference on Materials Structure and Micromechanics of Fracture In Key Engineering Materials 465. p.362-365- Abstract
- The influence on the fatigue crack growth behaviour of a short edge crack due to different configurations of a nearby located low angle grain boundary is investigated under quasi-static and plane strain conditions. The geometry is modelled by dislocation dipole elements in a boundary element approach, and the plasticity is modelled by discrete dislocations. The crack is assumed to grow in a single shear mechanism due to nucleation, glide and annihilation of dislocations in the material. It was found that the sign of the dislocations in the grain boundary, the distances between them and the placement of the dislocations in the grain boundary with respect to preferred slip plane directions, all strongly influenced the growth behaviour.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2855915
- author
- Hansson, Per LU and Melin, Solveig LU
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Key Engineering Materials
- volume
- 465
- pages
- 362 - 365
- publisher
- Trans Tech Publications
- conference name
- 6th International Conference on Materials Structure and Micromechanics of Fracture
- conference location
- Brno, Czech Republic
- conference dates
- 2010-06-28 - 2010-06-30
- external identifiers
-
- scopus:79952860141
- wos:000291704700083
- ISSN
- 1013-9826
- DOI
- 10.4028/www.scientific.net/KEM.465.362
- language
- English
- LU publication?
- yes
- id
- 26833217-7cb8-4ea4-b33a-f64e1860520e (old id 2855915)
- date added to LUP
- 2016-04-01 13:59:52
- date last changed
- 2022-01-27 22:17:01
@article{26833217-7cb8-4ea4-b33a-f64e1860520e, abstract = {{The influence on the fatigue crack growth behaviour of a short edge crack due to different configurations of a nearby located low angle grain boundary is investigated under quasi-static and plane strain conditions. The geometry is modelled by dislocation dipole elements in a boundary element approach, and the plasticity is modelled by discrete dislocations. The crack is assumed to grow in a single shear mechanism due to nucleation, glide and annihilation of dislocations in the material. It was found that the sign of the dislocations in the grain boundary, the distances between them and the placement of the dislocations in the grain boundary with respect to preferred slip plane directions, all strongly influenced the growth behaviour.}}, author = {{Hansson, Per and Melin, Solveig}}, issn = {{1013-9826}}, language = {{eng}}, pages = {{362--365}}, publisher = {{Trans Tech Publications}}, series = {{Key Engineering Materials}}, title = {{The effect of a low angle grain boundary on the short fatigue crack growth}}, url = {{http://dx.doi.org/10.4028/www.scientific.net/KEM.465.362}}, doi = {{10.4028/www.scientific.net/KEM.465.362}}, volume = {{465}}, year = {{2011}}, }