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Author: Kraus, Christiane × Subject: time discretization ×

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    A temperature-dependent phase-field model for phase separation and damage
    (Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik, 2015) Heinemann, Christian; Kraus, Christiane; Rocca, Elisabetta; Rossi, Riccarda
    In this paper we study a model for phase separation and damage in thermoviscoelastic materials. The main novelty of the paper consists in the fact that, in contrast with previous works in the literature (cf., e.g., [21, 22]), we encompass in the model thermal processes, nonlinearly coupled with the damage, concentration and displacement evolutions. More in particular, we prove the existence of entropic weak solutions, resorting to a solvability concept first introduced in [10] in the framework of Fourier-Navier-Stokes systems and then recently employed in [9, 38] for the study of PDE systems for phase transition and damage. Our global-intime existence result is obtained by passing to the limit in a carefully devised time-discretization scheme.