Application of r- and hr-adaptive BEM to two-dimensional elastic problem

This paper presents r- and hr-adaptive boundary element methods. The error analysis is done by the sample point error estimation scheme. Then, the err or indicator is defined as the product of the computational errors and the fundamental solutions. Mesh refinement is carried out so that the error ind icator distributes almost uniformly on whole boundary elements at the refin ed mesh. The present method is applied to the two-dimensional elastic probl em in order to confirm its validity. (C) 2000 Elsevier Science Ltd. All rig hts reserved.