Abstract
Like the finite element method (FEM), the symmetric Galerkin boundary element method (SGBEM) can produce symmetric system matrices. While widely developed for two dimensional problems, the 3D-applications of the SGBEM are very rare. This paper deals with the regularization of the singular integrals in the case of 3D elastostatic problems. It is shown that the integration formulas can be extended to curved elements. In contrast to other techniques, the Kelvin fundamental solutions are used with no need to introduce the new kernel functions. The accuracy of the developed integration formulas is verified on a problem with known analytical solution.
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Received 6 November 2000
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Haas, M., Kuhn, G. A symmetric Galerkin BEM implementation for 3D elastostatic problems with an extension to curved elements. Computational Mechanics 28, 250–259 (2002). https://doi.org/10.1007/s00466-001-0285-8
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DOI: https://doi.org/10.1007/s00466-001-0285-8