| On Choices of Stress Modes for Lower Order Quadrilateral Reissner-Mindlin Plate Elements |
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| 作者姓名： | Guanghui Hu Xiaoping Xie |
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| 作者单位： | Guanghui Hu and Xiaoping Xie School of Mathematics，Sichuan University，Chengdu 610064，China. |
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| 摘 要： | 1 Introduction In recent years, a lot of work for the Mindlin-Reissner (R-M) plate model has been done in the engineering and mathematical literatures (see 1-5, 7-15, 17] and references therein). As one knows, one of the most important problems is how to…
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| 关 键 词： | 四边形 Reissner-Mindlin板 混合有限元 数值计算 |
| 收稿时间： | 2005-04-08 |
| 修稿时间： | 2005-06-25 |
On Choices of Stress Modes for Lower Order Quadrilateral Reissner-Mindlin Plate Elements |
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| Guanghui Hu Xiaoping Xie.On Choices of Stress Modes for Lower Order Quadrilateral Reissner-Mindlin Plate Elements[J].Numerical Mathematics A Journal of Chinese Universities English Series,2006,15(2):120-126. |
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| Authors: | Guanghui Hu Xiaoping Xie |
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| Abstract: | A kind of stabilized mixed/hybrid scheme for Reissner-Mindlin plates is proposed with conforming isoparametric bilinear interpolations of deflection/rotations. The choice of shear stress modes is discussed. It is shown by numerical experiments that fulfilling an energy orthogonal condition for stress approximations is crucial to avoiding "shear locking". |
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| Keywords: | Mixed/hybrid finite element Reissner-Mindlin plate locking-free |
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