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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 21
ADVANCES IN POST AND PREPROCESSING FOR FINITE ELEMENT TECHNOLOGY
Edited by: M. Papadrakakis and B.H.V. Topping
Paper II.1

Mesh Adaption for Two Dimensional Stress Analysis

P. Beckers and H.G. Zhong

LTAS Infographie, University of Liege, Liege, Belgium

Full Bibliographic Reference for this paper
P. Beckers, H.G. Zhong, "Mesh Adaption for Two Dimensional Stress Analysis", in M. Papadrakakis, B.H.V. Topping, (Editors), "Advances in Post and Preprocessing for Finite Element Technology", Civil-Comp Press, Edinburgh, UK, pp 47-59, 1994. doi:10.4203/ccp.21.2.1
Abstract
In this paper an automatic procedure for finite element analysis of two-dimensional linear elastic structures is presented. This feedback procedure involves geometric modelling, automatic mesh generation, estimation of discretization errors, detection of regions of high stress gradients, estimation of error convergence rates, mesh optimization, and mesh refinement. A strategy is implemented for selecting intermediate meshes in cases of height accuracy requirements. The final meshes are optimal in the sense that the requirements are fulfilled with minimum computational efforts. Some additional mesh optimality criteria are also considered so as to meet specific local criteria. Three numerical examples are presented to show the different aspects and the efficiency of the procedure.

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