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Journal of Convex Analysis 19 (2012), No. 3, 759--794 Copyright Heldermann Verlag 2012 Relaxation and 3d-2d Passage Theorems in Hyperelasticity Omar Anza Hafsa Université de Nîmes, Laboratoire MIPA, Site des Carmes, Place Gabriel Péri, 30021 Nîmes, France omar.anza-hafsa@unimes.fr Jean-Philippe Mandallena Université de Nîmes, Laboratoire MIPA, Site des Carmes, Place Gabriel Péri, 30021 Nîmes, France jean-philippe.mandallena@unimes.fr We give an overview of relaxation and 3d-2d passage theorems in hyperelasticity in the framework of the multidimensional calculus of variations. We give several improvements of the proofs and we introduce the concept of p-ample integrand in showing its interest with respect to determinant type constraints. Some open questions are addressed. Keywords: Calculus of variations, integral representation, relaxation, 3d-2d passage, Gamma(pi)-convergence, determinant type constraints, hyperelasticity. [ Fulltext-pdf (279 KB)] for subscribers only. |