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Why do cracks avoid each other?

Melin, Solveig LU (1983) In International Journal of Fracture 23(1). p.37-45
Abstract
The experimentally known phenomenon that originally collinear mode I cracks seem to avoid each other before coalescence is studied by investigating the stability of straight crack paths. To this end a periodic array of approximately collinear but slightly curved cracks is considered. Stress intensity factors for modes I and II are derived and the growth of originally straight cracks under mode I conditions is studied after introduction of a disturbance that forces the cracks to deviate from a straight path. It is shown that the straight crack path is unstable, i.e. that tip to tip coalescence will not take place.
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
23
issue
1
pages
37 - 45
publisher
Springer
external identifiers
  • scopus:0020809281
ISSN
0376-9429
DOI
10.1007/BF00020156
language
English
LU publication?
yes
id
da693530-4f8c-4aff-9223-fc76ceb96d48 (old id 1515237)
date added to LUP
2016-04-04 08:16:05
date last changed
2021-10-03 03:11:47
@article{da693530-4f8c-4aff-9223-fc76ceb96d48,
  abstract     = {{The experimentally known phenomenon that originally collinear mode I cracks seem to avoid each other before coalescence is studied by investigating the stability of straight crack paths. To this end a periodic array of approximately collinear but slightly curved cracks is considered. Stress intensity factors for modes I and II are derived and the growth of originally straight cracks under mode I conditions is studied after introduction of a disturbance that forces the cracks to deviate from a straight path. It is shown that the straight crack path is unstable, i.e. that tip to tip coalescence will not take place.}},
  author       = {{Melin, Solveig}},
  issn         = {{0376-9429}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{37--45}},
  publisher    = {{Springer}},
  series       = {{International Journal of Fracture}},
  title        = {{Why do cracks avoid each other?}},
  url          = {{http://dx.doi.org/10.1007/BF00020156}},
  doi          = {{10.1007/BF00020156}},
  volume       = {{23}},
  year         = {{1983}},
}