Unconventional double set parameter finite element approximation for a fourth order variational inequality with displacement obstacle is considered.

研究位移障碍下的一个四阶变分不等式的非常规双参数有限元逼近。

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The double set parameter method is an effective way for constructing finite elements of higher order problems (such as plate bending problem finite elements).

双参数方法是构造高阶问题有限元(例如薄板弯曲问题单元)的有效方法。

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Using the double set parameter method of finite element, a class of 12 parameter rectangular plate elements, which past the generalized patch test is constructed.

本文利用有限元的双参数法，构造了一类十二参矩形板元，通过广义分片检验，因此对四阶问题收敛。

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