Calculus of Variations and Geometric Measure Theory
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R. Rossi - M. Thomas

Coupling rate-independent and rate-dependent processes: existence results

created by rossi on 22 Jun 2015

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Submitted Paper

Inserted: 22 jun 2015
Last Updated: 22 jun 2015

Year: 2015

Abstract:

We address the analysis of an abstract system coupling a rate-independent process with a second order (in time) nonlinear evolution equation. We propose suitable weak solution concepts and obtain existence results by passing to the limit in carefully devised time-discretization schemes. Our arguments combine techniques from the theory of gradient systems with the toolbox for rate-independent evolution, thus reflecting the mixed character of the problem. Finally, we discuss applications to a class of rate-independent processes in visco-elastic solids with inertia, and to a recently proposed model for damage with plasticity.


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