A study of the influence of grain boundaries on short crack growth during varying load using a dislocation technique
(2004) In Engineering Fracture Mechanics 71(15). p.2215-2227- Abstract
- The propagation of short cracks in the neighbourhood of grain boundaries have been investigated using a technique were the crack is modelled by distributed dislocation dipoles and the plastic deformation is represented by discrete dislocations. Discrete dislocations are emitted from the crack tip as the crack grows. Dislocations can also nucleate at the grain boundaries. The influence on crack growth characteristics of the distance between the initial crack tip and the grain boundary has been studied. It was found that crack growth rate is strongly correlated to the dislocation pile-ups at the grain boundaries. (C) 2004 Elsevier Ltd. All rights reserved.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/275684
- author
- Bjerkén, Christina LU and Melin, Solveig LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- boundary, grain, short crack growth, dislocation dipoles, discrete dislocations, dislocation nucleation
- in
- Engineering Fracture Mechanics
- volume
- 71
- issue
- 15
- pages
- 2215 - 2227
- publisher
- Elsevier
- external identifiers
-
- wos:000221991300007
- scopus:2142847258
- ISSN
- 1873-7315
- DOI
- 10.1016/j.engfracmech.2003.10.006
- language
- English
- LU publication?
- yes
- id
- 2942190d-94a8-47ef-8b64-35e5e714657e (old id 275684)
- date added to LUP
- 2016-04-01 16:29:44
- date last changed
- 2022-02-12 22:35:07
@article{2942190d-94a8-47ef-8b64-35e5e714657e, abstract = {{The propagation of short cracks in the neighbourhood of grain boundaries have been investigated using a technique were the crack is modelled by distributed dislocation dipoles and the plastic deformation is represented by discrete dislocations. Discrete dislocations are emitted from the crack tip as the crack grows. Dislocations can also nucleate at the grain boundaries. The influence on crack growth characteristics of the distance between the initial crack tip and the grain boundary has been studied. It was found that crack growth rate is strongly correlated to the dislocation pile-ups at the grain boundaries. (C) 2004 Elsevier Ltd. All rights reserved.}}, author = {{Bjerkén, Christina and Melin, Solveig}}, issn = {{1873-7315}}, keywords = {{boundary; grain; short crack growth; dislocation dipoles; discrete dislocations; dislocation nucleation}}, language = {{eng}}, number = {{15}}, pages = {{2215--2227}}, publisher = {{Elsevier}}, series = {{Engineering Fracture Mechanics}}, title = {{A study of the influence of grain boundaries on short crack growth during varying load using a dislocation technique}}, url = {{http://dx.doi.org/10.1016/j.engfracmech.2003.10.006}}, doi = {{10.1016/j.engfracmech.2003.10.006}}, volume = {{71}}, year = {{2004}}, }