Influence from geometrical features on the growth rate of a micro-structurally short fatigue crack
(2010) 3rd International Conference on Crack Paths, 2009 In Engineering Fracture Mechanics 77(11). p.1907-1913- Abstract
- 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... (More)
- 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1656043
- author
- Hansson, Per LU and Melin, Solveig LU
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Grain, Crack growth rate, Short fatigue crack, Discrete dislocations, boundary
- in
- Engineering Fracture Mechanics
- volume
- 77
- issue
- 11
- pages
- 1907 - 1913
- publisher
- Elsevier
- conference name
- 3rd International Conference on Crack Paths, 2009
- conference location
- Venice, Italy
- conference dates
- 2009-09-23 - 2009-09-25
- external identifiers
-
- wos:000280285800025
- scopus:77954034756
- ISSN
- 1873-7315
- DOI
- 10.1016/j.engfracmech.2010.03.036
- language
- English
- LU publication?
- yes
- id
- af3812a6-c403-44a2-bc01-284bc2e41e81 (old id 1656043)
- date added to LUP
- 2016-04-01 14:09:46
- date last changed
- 2022-01-30 02:49:46
@article{af3812a6-c403-44a2-bc01-284bc2e41e81,
abstract = {{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.}},
author = {{Hansson, Per and Melin, Solveig}},
issn = {{1873-7315}},
keywords = {{Grain; Crack growth rate; Short fatigue crack; Discrete dislocations; boundary}},
language = {{eng}},
number = {{11}},
pages = {{1907--1913}},
publisher = {{Elsevier}},
series = {{Engineering Fracture Mechanics}},
title = {{Influence from geometrical features on the growth rate of a micro-structurally short fatigue crack}},
url = {{http://dx.doi.org/10.1016/j.engfracmech.2010.03.036}},
doi = {{10.1016/j.engfracmech.2010.03.036}},
volume = {{77}},
year = {{2010}},
}