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most citedA weak-strong convergence property and symmetry of minimizers of constrained variational problems in

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math.AP2018

Global injectivity in second-gradient Nonlinear Elasticity and its approximation with penalty terms

Stefan Krömer, Jan Valdman

We present a new penalty term approximating the Ciarlet-Nečas condition (global invertibility of deformations) as a soft constraint for hyperelastic materials. For non-simple mater…