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MiS Preprint
86/2003

May the singular integrals in BEM be replaced by Zero?

Steffen Börm, Nico Krzebek and Stefan A. Sauter

Abstract

When approximating the singular integrals arising in the boundary element method by quadrature techniques, it is important to keep the quadrature error consistent with the discretization error in order to reach the optimal order of convergence. In classical approaches, this means that the order of the quadrature grows logarithmically in the number of degrees of freedom.

We present a quadrature scheme based on alternative representations of the singular integrands that allows us to use a constant quadrature order without giving up consistency.

Received:
Oct 8, 2003
Published:
Oct 8, 2003
MSC Codes:
45B05, 65M39
Keywords:
bem, numerical quadrature, singular integrals

Related publications

inJournal
2005 Repository Open Access
Steffen Börm, Nico Krzebek and Stefan A. Sauter

May the singular integrals in BEM be replaced by zero?

In: Computer methods in applied mechanics and engineering, 194 (2005) 2-5, pp. 383-393