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Applications of the boundary element and dislocation density methods in plane crack problems

✍ Scribed by A. Sturt; D. Nowell; D.A. Hills

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
560 KB
Volume
11
Category
Article
ISSN
0955-7997

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✦ Synopsis

Crack modelling using the dislocation density method has become an increasingly popular technique for plane crack problems and allows the fast, efficient determination of stress intensity factors. The range of geometries which may be solved by the basic technique is, however, somewhat limited and this paper outlines a hybrid formulation combining the dislocation density technique with constant displacement discontinuity boundary elements to satisfy a range of far boundary conditions. The method described can analyse configurations with an arbitrary number of buried or surface breaking cracks and can be implemented on a personal computer to provide an efficient tool for crack analysis.

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