Superconvergence of finite element method for the Signorini problem

被引:13
|
作者
Li, Ming-xia [1 ]
Lin, Qun [1 ]
Zhang, Shu-hua [2 ]
机构
[1] Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100080, Peoples R China
[2] Tianjin Univ Finance & Econ, Dept Math, Tianjin 300222, Peoples R China
关键词
Finite element; The Signorini problem; Superconvergenence;
D O I
10.1016/j.cam.2007.10.058
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, we study the superconvergence of the frictionless Signorini problem. When approximated by bilinear finite elements, by virtue of the information on the contact zone, we can derive a superconvergence rate of O(h(3/2)) under a proper regularity assumption. Finally, a numerical test is given to verify our result. (c) 2007 Elsevier B.V. All rights reserved.
引用
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页码:284 / 292
页数:9
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