Superconvergence of finite element method for the Signorini problem
β Scribed by Ming-xia Li; Qun Lin; Shu-hua Zhang
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 538 KB
- Volume
- 222
- Category
- Article
- ISSN
- 0377-0427
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β¦ Synopsis
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.
π SIMILAR VOLUMES
This article derives a general superconvergence result for nonconforming finite element approximations of the Stokes problem by using a least-squares surface fitting method proposed and analyzed recently by Wang for the standard Galerkin method. The superconvergence result is based on some regularit