✦ LIBER ✦

The patch test conditions and some multivariable finite element formulations

✍ Scribed by Wu Zhang; D. P. Chen

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 151 KB
Volume: 40
Category: Article
ISSN: 0029-5981
DOI: 10.1002/(sici)1097-0207(19970830)40:16<3015::aid-nme184>3.0.co;2-1

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✦ Synopsis

From a unified viewpoint, this article establishes the practical and general constant stress patch test conditions (PTC) for analysing and ensuring convergence or robustness of some multivariable finite element (MFE) formulations, such as hybrid-mixed and incompatible element formulations. The proposed PTC are applied to develop new general MFE formulations which pass PTC and a family of corresponding MFE for stress analysis. Several numerical examples are also given.

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