Shielding effects and dislocation repositioning at cleavage crack growth
(1996) 11th Biennial European Conference on Fracture - ECF 11 p.419-424- Abstract
- The motion of pre-existing edge dislocations in an infinite linear elastic body is studied. Motion is due to a quasi-statically steady-state growing crack. In the model, the dislocations glide if the force on the dislocation exceeds a critical value. Obtained results are changes in dislocation density, the shielding effect on the crack tip and residual stresses. The model is applied to an isotropic material. The residual stress far behind the crack tip is tensile near the crack, decreasing to zero at a certain distance above the crack plane. The indication is that the shielding effect may be considerable.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1445036
- author
- Andersson, P. and Ståhle, Per LU
- publishing date
- 1996
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Mechanisms and mechanics of damage and failure : proceedings of the 11th Biennial European conference on fracture -ECF 11- held in Poitiersa-Futuroscope, France, 3-6 September 1996 ... - proceedings of the 11th Biennial European conference on fracture -ECF 11- held in Poitiersa-Futuroscope, France, 3-6 September 1996 ...
- editor
- Petit, J. ; deFouquet, J. ; Henaff, G. ; Villechaise, P. and Dragon, A.
- pages
- 419 - 424
- conference name
- 11th Biennial European Conference on Fracture - ECF 11
- conference location
- Poitiers, France
- conference dates
- 1996-09-03 - 1996-09-06
- ISBN
- 0947817905
- language
- English
- LU publication?
- no
- id
- cbce3d36-1703-48c7-ba42-37e312868ea5 (old id 1445036)
- date added to LUP
- 2016-04-04 14:01:08
- date last changed
- 2020-03-25 14:51:31
@inproceedings{cbce3d36-1703-48c7-ba42-37e312868ea5, abstract = {{The motion of pre-existing edge dislocations in an infinite linear elastic body is studied. Motion is due to a quasi-statically steady-state growing crack. In the model, the dislocations glide if the force on the dislocation exceeds a critical value. Obtained results are changes in dislocation density, the shielding effect on the crack tip and residual stresses. The model is applied to an isotropic material. The residual stress far behind the crack tip is tensile near the crack, decreasing to zero at a certain distance above the crack plane. The indication is that the shielding effect may be considerable.}}, author = {{Andersson, P. and Ståhle, Per}}, booktitle = {{Mechanisms and mechanics of damage and failure : proceedings of the 11th Biennial European conference on fracture -ECF 11- held in Poitiersa-Futuroscope, France, 3-6 September 1996 ...}}, editor = {{Petit, J. and deFouquet, J. and Henaff, G. and Villechaise, P. and Dragon, A.}}, isbn = {{0947817905}}, language = {{eng}}, pages = {{419--424}}, title = {{Shielding effects and dislocation repositioning at cleavage crack growth}}, url = {{https://lup.lub.lu.se/search/files/6260875/4246509.pdf}}, year = {{1996}}, }