Numerical integration of singularities in meshless implementation of local boundary integral equations

被引：0
作者：
V. Sladek
J. Sladek
S. N. Atluri
R. Van Keer
机构：
[1] Institute of Construction and Architecture,
[2] Slovak Academy of Sciences,undefined
[3] 842 20 Bratislava,undefined
[4] Slovak Republic,undefined
[5] Center for Aerospace Research & Education,undefined
[6] 48-121,undefined
[7] Engineering IV,undefined
[8] University of California at Los Angeles,undefined
[9] Los Angeles,undefined
[10] CA 90024,undefined
[11] USA,undefined
[12] Department of Mathematical Analysis,undefined
[13] University of Gent,undefined
[14] Galglaan 2,undefined
[15] B – 9000 Gent,undefined
[16] Belgium,undefined
来源：
Computational Mechanics | 2000年 / 25卷
关键词：
Integral Equation; Smooth Function; Special Treatment; Linear Elasticity; Sufficient Accuracy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
 The necessity of a special treatment of the numerical integration of the boundary integrals with singular kernels is revealed for meshless implementation of the local boundary integral equations in linear elasticity. Combining the direct limit approach for Cauchy principal value integrals with an optimal transformation of the integration variable, the singular integrands are recasted into smooth functions, which can be integrated by standard quadratures of the numerical integration with sufficient accuracy. The proposed technique exhibits numerical stability in contrast to the direct integration by standard Gauss quadrature.
引用
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页码：394 / 403
页数：9
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