科研之友
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摘要
The convergence order O(h(2)) of the plate bending problem has been derived by the superconvergence methods or constructing new finite elements where shape function space consist of P-3 space so far. In this paper, we can also present the same result of the Adini rectangular element by the interior penalty method. We built a new nonconforming scheme, where the penalty parameter is accurately estimated and the consistency term vanishes. Then, the error estimate can only be determined by the interpolation error.
