Superconvergent patch recovery techniques - some further tests
β Scribed by Zienkiewicz, O. C. ;Zhu, J. Z. ;Wu, J.
- Book ID
- 102115836
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 300 KB
- Volume
- 9
- Category
- Article
- ISSN
- 1069-8299
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π SIMILAR VOLUMES
A posteriori error estimation has become very popular, mainly in linear elasticity. A robust implementation of the superconvergent patch recovery technique of 0. C. Zienkiewicz and J. Z. Zhu is presented for acoustic finite element analyses: the original concepts are extended to complex variables, a
## Abstract The superconvergent patch recovery (SPR) technique is widely used in the evaluation of a recovered stress field **Ο**^\*^ from the finite element solution **Ο**~fe~. Several modifications of the original SPR technique have been proposed. A new improvement of the SPR technique, called SP
Mathematical proofs are presented for the derivative superconvergence obtained by a class of patch recovery techniques for both linear and bilinear finite elements in the approximation of second-order elliptic problems.
This is the second in a series of two papers in which the patch recovery technique proposed by Zienkiewicz and Zhu [I-3] is analyzed. In the first paper [4], we have shown that the recovered derivative by the least-squares titting is superconvergent for the two-point boundary value problems. In the