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Direct evaluation of boundary stresses in the 3D BEM of elastostatics

โœ Scribed by Wilde, A. J. ;Aliabadi, M. H.

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
195 KB
Volume
14
Category
Article
ISSN
1069-8299

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โœฆ Synopsis

In this paper, a method for the evaluation of boundary stresses directly from the BEM solution of elastostatic problems using the static boundary integral equation is presented. The technique is valid for corners and edges as well as smooth points on the boundary, and involves deยฎning a new interpolation function for continuous elements which incorporate certain continuity conditions arising from the hypersingular nature of the integrals involved. An integration technique based on the singularity subtraction method using series expansions is adopted for the hypersingular intergrals. Results are shown to be more accurate than those obtained with conventional techniques.

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