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Improvement of stress singular element for crack problems in three dimensional boundary element method

✍ Scribed by Gangming Luo; Yongyuan Zhang

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
490 KB
Volume
31
Category
Article
ISSN
0013-7944

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✦ Synopsis

In the paper, a new kind of stress singular element is introduced for crack problems. This kind of element is more simple and widely used than those presented before. In the paper, a cube with embedded circular crack and a first kind Benchmark problem are studied. The study shows that using quarter-point element and the stress singular element can obviously improve the accuracy. The influences of methods estimating stress intensity factor on accuracy are also studied.

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