Reference : Recent advances in the dual analysis theory
Scientific congresses and symposiums : Unpublished conference
Engineering, computing & technology : Mechanical engineering
Recent advances in the dual analysis theory
[fr] Récents progrès de la théorie de l'analyse duale
Debongnie, Jean-François mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Méthodes de fabrication >]
Beckers, Pierre mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Département d'aérospatiale et mécanique >]
IV Congreso Metodos Numericos en Ingenieria
du 7 juin 1999 au 10 juin 1999
Sociedad Española de Métodos Numéricos en Ingenieria
[en] Dual analysis ; error estimator ; convergence
[en] The dual analysis concept, which is one of the oldest methods of measuring the discretization error of finite element models, suffered by its lack of generality in its original version. In fact, severe restrictions were imposed to the boundary conditions, excluding any mixed problem. These restrictions, related to an analysis where stiffness plays a central role, can be avoided by using the proper reference energy, which is the total complementary energy. This leads to convergence curves which are always on the same side of the exact value and whose distance measures the quality of the analyses.
Researchers ; Professionals

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