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The radial integration method for evaluation of domain integrals with boundary-only discretization. (English) Zbl 1130.74461
Summary: A simple and robust method, called the radial integration method, is presented for transforming domain integrals into equivalent boundary integrals. Any two- or three-dimensional domain integral can be evaluated in a unified way without the need to discretize the domain into internal cells. Domain integrals consisting of known functions can be directly and accurately transformed to the boundary, while for domain integrals including unknown variables, the transformation is accomplished by approximating these variables using radial basis functions. In the proposed method, weak singularities involved in the domain integrals are also explicitly transformed to the boundary integrals, so no singularities exist at internal points. Some analytical and numerical examples are presented to verify the validity of this method.

##### MSC:
 74S15 Boundary element methods applied to problems in solid mechanics
BEMECH
Full Text:
##### References:
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