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| Boundary element nonlinear analysis for shallow spherical shells |
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| DOI：10.7511/jslx19944059 |
| KeyWord:shallow shell,nonlinear/BEM |
| Long Shuyao Chen Jun Kuai Xingcheng Li Jiabao |
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| Abstract: |
| In this paper,bounary integral equations are derived applying weighted residual mthod and fundamental solutions which are obtained by using Fourier integrals for independent dif-ferential equations for three displacements components.This method for shallow shell is sim-ilar to one in the nonlinear analysis for plates. It has advantages that physical meanings for each variable are clear,various complicated boundary conditions and existence of openings can be treated simply and unfriendly.Examples at end of the paper show applicability,conver-gency and accuracy of the method.Results obtained are in good agreement with that of two-variables(stress function and normal displacement)BE analysis or FEM for shallow spheri-cal shell. |