Recent advances in the dual analysis theory

• Jean-François Debongnie ^[1] ; Pierre Beckers ^[1]
  1. [1] University of Liège

     University of Liège

     Arrondissement de Liège, Bélgica

     
• Localización: Métodos Numéricos en Ingeniería: [Comunicaciones presentadas al IV Congreso de Métodos Numéricos en Ingeniería celebrado en Sevilla durante los días 7-10 de Junio de 1999] / R. Abascal (ed. lit.), José Domínguez Abascal (ed. lit.) , G. Bugeda (ed. lit.), 1999, ISBN 84-89925-45-3
• Idioma: español
• Texto completo no disponible (Saber más ...)
• Resumen

  • The dual analysis concept, which is one of the oldest methods of measuring thediscretization error of finite element models, suffered by its lack of generality in its originalversion. In fact, severe restrictions were imposed to the boundary conditions, excluding anymixed problem.These restrictions, related to an analysis where stiffness play a central role, can beavoided by using the proper reference energy, which is the total complementary energy. Thisleads to convergence curves which are always on the same side of the exact value and whosedistance measures the quality of the analysis.