Author(s)

C. Fiedler

Abstract

The computation of interior displacements and stresses with the boundary element method often requires the evaluation of nearly singular integrals. In this paper reg- ularization procedures are proposed which consist of an indirect evaluation of sin- gular integrals and a special coordinate transformation. The proposed procedures eliminate the boundary layer effect for both, the calculation of displacements and stresses. In a numerical example of elastostatics the developed strategies are shown to work. Due to the generality of the proposed procedures they can be extended to any standard boundary element formulation for problems with bounded domains. Introduction Computation of domain variables by BEM is performed in a postprocessing step from the boundary solution. How

Keywords