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On the hyper-singular boundary-element formulation for fracture-mechanics applications

✍ Scribed by S. Guimarães; J.C.F. Telles

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
699 KB
Volume
13
Category
Article
ISSN
0955-7997

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✦ Synopsis

The present paper discusses the application of the hyper-singular boundaryintegral equation, the so-called traction formulation, to solve linear-elasticfracture-mechanics (LEFM) problems. Emphasis is given to two-dimensional boundary-element implementations, combining continuous or discontinuous quadratic and quarter-point elements in order to identify the limitations and improvements for computing stress-intensity factors. The study shows the importance of considering displacement-derivative continuities into the numerical implementation and the use of quarter-point elements to improve results.

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