Accepted Paper

Inserted: 21 apr 2020
Last Updated: 3 nov 2020

Journal: SIAM Journal on Mathematical Analysis
Year: 2020

Abstract:

We study compressible and incompressible nonlinear elasticity variational problems in a general context. Our main result gives a sufficient condition for an equilibrium to be a global energy minimizer, in terms of convexity properties of the pressure in the deformed configuration. We also provide a convex relaxation of the problem together with its dual formulation, based on measure-valued mappings, which coincides with the original problem under our condition.

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