Stress state in front of a crack perpendicular to bimaterial interface
(1998) In Engineering Fracture Mechanics 59(4). p.471-485- Abstract
- Using a dislocation simulation approach, the basic equation for a crack perpendicular to a bimaterial interface is formulated in this paper. A novel expansion method is proposed for solving the problem. The complete solution for the problem, including the T stress ahead of the crack tip and the stress intensity factors are presented. The stress field characteristics are analyzed in detail. It is found that ahead of the crack tip and near the interface the normal stress, perpendicular to the crack plane, σx, is characterized by the K fields and the normal stress σy is dominated by the K field plus T stress in the region of 0 < r/b < 0.4 for b/a0 ≤ 0.1, where b is the distance from the crack tip to the interface.
- Abstract (Swedish)
- Using a dislocation simulation approach, the basic equation for a crack perpendicular to a bimaterial interface is formulated in this paper. A novel expansion method is proposed for solving the problem. The complete solution for the problem, including the T stress ahead of the crack tip and the stress intensity factors are presented. The stress field characteristics are analyzed in detail. It is found that ahead of the crack tip and near the interface the normal stress, perpendicular to the crack plane, sigma(x), is characterized by the K fields and the normal stress sigma(y) is dominated by the K field plus T stress in the region of 0 <r/b <0.4 for b/a(0) less than or equal to 0.1, where b is the distance from the crack tip to the... (More)
- Using a dislocation simulation approach, the basic equation for a crack perpendicular to a bimaterial interface is formulated in this paper. A novel expansion method is proposed for solving the problem. The complete solution for the problem, including the T stress ahead of the crack tip and the stress intensity factors are presented. The stress field characteristics are analyzed in detail. It is found that ahead of the crack tip and near the interface the normal stress, perpendicular to the crack plane, sigma(x), is characterized by the K fields and the normal stress sigma(y) is dominated by the K field plus T stress in the region of 0 <r/b <0.4 for b/a(0) less than or equal to 0.1, where b is the distance from the crack tip to the interface. (C) 1998 Elsevier Science Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/286d6c81-0785-4bef-8a18-063ad8ae0771
- author
- Wang, T. C. and Ståhle, P. LU
- publishing date
- 1998
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Engineering Fracture Mechanics
- volume
- 59
- issue
- 4
- pages
- 15 pages
- publisher
- Elsevier
- external identifiers
-
- wos:000072676400007
- scopus:0032010583
- ISSN
- 0013-7944
- DOI
- 10.1016/s0013-7944(97)00150-1
- language
- English
- LU publication?
- no
- additional info
- Wang, TC Stahle, P Stahle, Per/J-3590-2014 1873-7315
- id
- 286d6c81-0785-4bef-8a18-063ad8ae0771
- date added to LUP
- 2019-06-25 19:29:30
- date last changed
- 2022-01-31 22:39:44
@article{286d6c81-0785-4bef-8a18-063ad8ae0771,
abstract = {{Using a dislocation simulation approach, the basic equation for a crack perpendicular to a bimaterial interface is formulated in this paper. A novel expansion method is proposed for solving the problem. The complete solution for the problem, including the T stress ahead of the crack tip and the stress intensity factors are presented. The stress field characteristics are analyzed in detail. It is found that ahead of the crack tip and near the interface the normal stress, perpendicular to the crack plane, σx, is characterized by the K fields and the normal stress σy is dominated by the K field plus T stress in the region of 0 < r/b < 0.4 for b/a0 ≤ 0.1, where b is the distance from the crack tip to the interface.}},
author = {{Wang, T. C. and Ståhle, P.}},
issn = {{0013-7944}},
language = {{eng}},
number = {{4}},
pages = {{471--485}},
publisher = {{Elsevier}},
series = {{Engineering Fracture Mechanics}},
title = {{Stress state in front of a crack perpendicular to bimaterial interface}},
url = {{http://dx.doi.org/10.1016/s0013-7944(97)00150-1}},
doi = {{10.1016/s0013-7944(97)00150-1}},
volume = {{59}},
year = {{1998}},
}