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arXiv:1408.0820 [math.AP]AbstractReferencesReviewsResources

Convergence of Variational Approximation Schemes for Elastodynamics with Polyconvex Energy

Alexey Miroshnikov, Athanasios E. Tzavaras

Published 2014-08-04Version 1

We consider a variational scheme developed by S. Demoulini, D. M. A. Stuart and A. E. Tzavaras [Arch. Ration. Mech. Anal. 157 (2001)] that approximates the equations of three dimensional elastodynamics with polyconvex stored energy. We establish the convergence of the time-continuous interpolates constructed in the scheme to a solution of polyconvex elastodynamics before shock formation. The proof is based on a relative entropy estimation for the time-discrete approximants in an environment of Lp-theory bounds, and provides an error estimate for the approximation before the formation of shocks.

Journal: Journal of Analysis and Its Applications (ZAA), 33 (2014), 43-64
Categories: math.AP
Subjects: 35L70, 74B20, 74H20
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