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Which is the most unfavourable crack orientation?

Melin, Solveig LU (1991) In International Journal of Fracture 51(3). p.255-263
Abstract
The most unfavourable orientation of a straight crack of given length is investigated, assuming mode I growth. It is shown that this orientation is not always the one perpendicular to the largest principal stress. If the smallest in-plane principal stress is compressive and its magnitude more than about one third of the largest (tensile) in-plane stress, then some other orientations are more unfavourable. Crack growth then takes place after kinking.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
International Journal of Fracture
volume
51
issue
3
pages
255 - 263
publisher
Springer
external identifiers
  • scopus:0005140758
ISSN
0376-9429
DOI
10.1007/BF00045811
language
English
LU publication?
yes
id
fa0d1930-578b-407a-a2b9-299df30e5b43 (old id 1515271)
date added to LUP
2016-04-04 08:44:41
date last changed
2025-10-14 11:43:26
@article{fa0d1930-578b-407a-a2b9-299df30e5b43,
  abstract     = {{The most unfavourable orientation of a straight crack of given length is investigated, assuming mode I growth. It is shown that this orientation is not always the one perpendicular to the largest principal stress. If the smallest in-plane principal stress is compressive and its magnitude more than about one third of the largest (tensile) in-plane stress, then some other orientations are more unfavourable. Crack growth then takes place after kinking.}},
  author       = {{Melin, Solveig}},
  issn         = {{0376-9429}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{255--263}},
  publisher    = {{Springer}},
  series       = {{International Journal of Fracture}},
  title        = {{Which is the most unfavourable crack orientation?}},
  url          = {{http://dx.doi.org/10.1007/BF00045811}},
  doi          = {{10.1007/BF00045811}},
  volume       = {{51}},
  year         = {{1991}},
}