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| Several problems associated with discontinuous boundary elements |
| Revised:June 29, 1999 |
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| DOI：10.7511/jslx20013067 |
| KeyWord:discontinuous boundary elements,collocation points,adaptive BEM,error indicator |
| ZHANG Xiao-song 1 YE Tian-qi 2 GE Shou-lian 2 |
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| Abstract: |
| Accuracy of discrete model and optimum position associated with discontinuous boundary element analysis are studied. It is demonstrated from the numerical implementation that optimum collocation factor for the interpolating function presented in this paper is 0.5 and the proper choice of superparametric or subparametric elements can improve the efficiency of the boundary element analysis. The discontinuous boundary elements are employed for analysis of adaptive boundary elements. The discontinuity of physical variables for adjacent elements, which is extrapolated from collocation points, is taken as error indicator. The numerical results presented in this paper illustrate the feasibility of the proposed approach. |
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