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A VARIATIONAL BOUNDARY ELEMENT INTEGRAL WITH TAYLOR EXPANSION FOR POTENTIAL PROBLEM

Journal of Engineering and Applied Sciences • 2014
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Publication Information
Authors Taha Naga, Youssef F. Rashed, A. A. Saad
Keywords Boundary element method, Variational formulation, Stiffness matrix,
Journal Journal of Engineering and Applied Sciences
Publisher Not Available
Volume 61
Issue 1
Pages 43-63
publication.type International
Paper Link Not Available
Supplementary Materials Not Available
Abstract
In this paper, the singularity appearing in the variational boundary integral formulation for potential problem is addressed. The Taylor series expansion is used to expand terms inside the weakly and strongly singular integral kernels around the singular point. In this approach, the singularities involved in the integration kernels are analytically removed by excluding the singular point from the proposed integral and applying analytical integrations.