This paper describes an enhanced error estimator for adaptive ®nite element analysis of three-dimensional incompressible viscous ¯ow. The estimator uses a modi®ed form of the recovery functional employed in the well-known L 2 local patch recovery technique (LPR) originally proposed by Zienkiewicz an
Local error estimator for stresses in 3D structural analysis
✍ Scribed by E. Florentin; L. Gallimard; P. Ladevèze; J.P. Pelle
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 137 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0045-7949
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✦ Synopsis
This paper focuses on an a posteriori error estimator for FE approximations of 3D linear elasticity problems. The objective is to present the application of the new generation of error in constitutive relation to the calculation of the local error in classical tetrahedral elements. We show on examples whose solution is known analytically that the local error estimation gives satisfactory effectivity indexes.
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This article deals with the local quality on stresses produced during finite element analysis in 3D linear elasticity. We use an estimation technique based on the concept of error in constitutive relation, which yields excellent estimates of the local errors without requiring the approximate calcula
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