Implementation Of An Advanced Symmetric
Galerkin BEM-formulation For 3D-elastostatics
Author(s)
M. Haas & G. Kuhn
Abstract
Like the finite element method (FEM), the symmetric Galerkin boundary
element method (SGBEM) produces symmetric "stiffness"-matrices, which
allow an efficient coupling of both numerical methods. Compared to the
standard collocation method, in the SGBEM one has to deal with double
integrations and the occurrence of hypersingular kernel functions. For two-
dimensional problems the SGBEM is well developed (e.g. [4, 5, 6]), whereas
SD-implementations were restricted to linear triangular elements up to now.
This is not sufficient for practical applications in engineering. Based on a
strongly singular formulation of the traction boundary integral equation, the
regularization procedure for linear triangular elements proposed in [1, 7] is
Keywords
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