High accuracy analysis of two nonconforming plate elements

High accuracy analysis of two nonconforming plate elements
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DOI:
10.1007/s00211-008-0190-6
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发表时间:
2009-01
影响因子:
2.1
通讯作者:
S. Mao;Zhongci Shi
S. Mao;Zhongci Shi
中科院分区:
数学2区
文献类型:
--
作者:
S. Mao;Zhongci Shi

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本文证明了板弯曲问题的莫利元和不完全双二次有限元的超收敛性。在均匀矩形网格下,通过适当的后处理方法,我们得到了在单元对称点处的一个超收敛性质和一个整体超收敛结果。
We prove the superconvergence of Morley element and the incomplete biquadratic nonconforming element for the plate bending problem. Under uniform rectangular meshes, we obtain a superconvergence property at the symmetric points of the elements and a global superconvergent result by a proper postprocessing method.