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Asymptotic behavior of structures made of straight rods
Dominique Blanchard 1, Georges Griso 2
(15/10/2010)

This paper is devoted to describe the deformations and the elastic energy for structures made of straight rods of thickness $2\delta$ when $\delta$ tends to 0. This analysis relies on the decomposition of the large deformation of a single rod introduced in [6] and on the extension of this technique to a multi-structure. We characterize the asymptotic behavior of the infimum of the total elastic energy as the minimum of a limit functional for an energy of order $\delta^\beta$ ($2<\beta\le 4$).
1 :  Laboratoire de Mathématiques Raphaël Salem (LMRS)
CNRS : UMR6085 – Université de Rouen
2 :  Laboratoire Jacques-Louis Lions (LJLL)
CNRS : UMR7598 – Université Pierre et Marie Curie [UPMC] - Paris VI
Mathématiques/Equations aux dérivées partielles
Nonlinear elasticity – junctions – rods
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