Shell based robust numerical procedures for the solution of real-life problems: conference in the honor of Michel Bernadou

Abstract : The modeling of several real-life complex problems requires the use of thin structures. It is important to study and develop effective and reliable shell elements, especially for coupled problems where the validation of the entire method needs the efficiency of each component. All the numerical procedures presented use "general shell elements" either the MITC shell elements or the "3d shell elements" All these elements prevent locking which is an important feature in industrial applications. The main interest of the 3d-shell elements is to use 3D energy without prior modification, unlike classical general shell elements which require the use of a plane stress assumption and of an accordingly modified energy formulation. This is particularly effective when using non-linear stress-strain laws as the Ogden-Ciarlet-Geymonat energy density. These elements have standard degrees of freedom and thus are well suited for multi-layered structures and particular coupling situations. In this context we are interested in the interaction between an incompressible fluid and an elastic structure. As the target application is blood flows through large arteries, a strongly coupled method which ensures a well-balanced energy transfer between the fluid and the structure is mandatory. It is wellknown that a heterogenous domain-decomposition approach is well suited to solve such problems .
Type de document :
Communication dans un congrès
IACM ECCOMAS, Jun 2008, Venice, Italy. 2008
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https://hal.inria.fr/hal-00697013
Contributeur : Marina Vidrascu <>
Soumis le : lundi 14 mai 2012 - 13:33:42
Dernière modification le : vendredi 25 mai 2018 - 12:02:03

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  • HAL Id : hal-00697013, version 1

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Marina Vidrascu. Shell based robust numerical procedures for the solution of real-life problems: conference in the honor of Michel Bernadou. IACM ECCOMAS, Jun 2008, Venice, Italy. 2008. 〈hal-00697013〉

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