Eléments nis tétraédriques pour l'analyse duale
Keywords:
error estimation, 3D dual analysis, equilibrium model, tetrahedral nite elementAbstract
The error estimation by pure dual analysis requires two nite element computations. It is based on the results of displacement and equilibrium approaches of a given problem. It allows to compute the cumulated global discretization error of the two models by a simple comparison of the total energies computed using both methods. This paper presents the development of a new family of equilibrium type tetrahedral nite elements leading to statically admissible solutions of 3D nite element problems. Two examples of dual analysis using these elements are also presented.
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References
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