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Fracture from a straight crack subjected to mixed mode loading

Melin, Solveig LU (1987) In International Journal of Fracture 32(4). p.257-263
Abstract
Fracture from a straight crack under mixed mode loading conditions and small scale of yielding is studied. It is assumed that crack growth occurs in either mode I or mode II. Comparison of theoretically obtained values of the mode I stress intensity factor at incipient kinking with experimental results indicates that mode I is preferred to mode II when the loading is such that the crack surfaces are traction-free, i.e. in the absence of a confining pressure. Mode II would be preferred only if the ratio K II c/K I c between the stress intensity factors is very low, between 0.38–0.81, depending on the load situation. Since there are reasons to believe that most materials are characterized by higher values of K II c/K I c, the conclusion is... (More)
Fracture from a straight crack under mixed mode loading conditions and small scale of yielding is studied. It is assumed that crack growth occurs in either mode I or mode II. Comparison of theoretically obtained values of the mode I stress intensity factor at incipient kinking with experimental results indicates that mode I is preferred to mode II when the loading is such that the crack surfaces are traction-free, i.e. in the absence of a confining pressure. Mode II would be preferred only if the ratio K II c/K I c between the stress intensity factors is very low, between 0.38–0.81, depending on the load situation. Since there are reasons to believe that most materials are characterized by higher values of K II c/K I c, the conclusion is that mode II hardly occurs in the absence of a high confining pressure. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
International Journal of Fracture
volume
32
issue
4
pages
257 - 263
publisher
Springer
external identifiers
  • scopus:0022924611
ISSN
0376-9429
DOI
10.1007/BF00018544
language
English
LU publication?
yes
id
b9f142ba-5987-4a23-af19-803a470148ce (old id 1515265)
date added to LUP
2010-01-07 11:36:58
date last changed
2017-07-30 04:52:27
@article{b9f142ba-5987-4a23-af19-803a470148ce,
  abstract     = {Fracture from a straight crack under mixed mode loading conditions and small scale of yielding is studied. It is assumed that crack growth occurs in either mode I or mode II. Comparison of theoretically obtained values of the mode I stress intensity factor at incipient kinking with experimental results indicates that mode I is preferred to mode II when the loading is such that the crack surfaces are traction-free, i.e. in the absence of a confining pressure. Mode II would be preferred only if the ratio K II c/K I c between the stress intensity factors is very low, between 0.38–0.81, depending on the load situation. Since there are reasons to believe that most materials are characterized by higher values of K II c/K I c, the conclusion is that mode II hardly occurs in the absence of a high confining pressure.},
  author       = {Melin, Solveig},
  issn         = {0376-9429},
  language     = {eng},
  number       = {4},
  pages        = {257--263},
  publisher    = {Springer},
  series       = {International Journal of Fracture},
  title        = {Fracture from a straight crack subjected to mixed mode loading},
  url          = {http://dx.doi.org/10.1007/BF00018544},
  volume       = {32},
  year         = {1987},
}