Paper number 900

SUBSTRUCTURE METHOD FOR AN ASSEMBLY OF STRUCTURES INVARIANT IN ONE DIRECTION

S. MEO¹, O. DEBORDES², A. BOUKAMEL²

1Laboratoire de Mécanique et d'Acoustique de Marseille et Ecole Supérieure de Mécanique de Marseille, Technopôle de Château-Gombert, 13451 Marseille, Cedex 20 France
2Laboratoire de Mécanique et d'Acoustique de Marseille et Ecole Supérieure d'Ingénieur de Marseille, Technopôle de Château-Gombert, 13451 Marseille, Cedex 20 France

Summary

This study deals with the modeling by finite elements of an elastomeric composite structure. The main difficulties lie in the heterogeneity of the piece and in the geometrical non-linearity due to the centrifugal forces. We use the combination of two different methods of level sub-structuring. The first one is a multi-level sub-structuring method and the second is a more classical sub-structuring. After computation, the complete solution in displacement, the complete stress field and the global dumping of the structure (by an energetic method) are obtained.

Keywords

finite elements method, sub-structure method, dumping, large number of degrees of freedom, heterogeneity, geometric non linearity, elastomer, composite material.