Constitutive Relation Error Estimators and Adaptivity in Structural Engineering
Résumé
The basic aspects of error estimators based on residuals on the constitutive relations which have been developed for the past 20 years in particular at Cachan are given. The crucial point is detailed; it is the construction of equilibrated stress fields from the computed finite element solution and the data. Adaptive computational strategies are also described and applied to 2 and 3D engineering examples.
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