Décomposition des déplacements d'une poutre : simplification d'un problème d'élasticité

We present a decomposition of rod displacements. Then we use this decomposition to simplify an 3D linearized elasticity problem. The formal problem obtained is a differential system which depends on the thickness of the rod. We give error estimates. To cite this article: G. Griso, C. R. Mecanique 333 (2005).