Existence of Weak Solutions for the Cahn-Hilliard Reaction Model Including Elastic Effects and Damage.

Existence of Weak Solutions for the Cahn-Hilliard Reaction Model Including Elastic Effects and Damage.

Year:    2017

Author:    Christiane Kraus, Arne Roggensack

Journal of Partial Differential Equations, Vol. 30 (2017), Iss. 2 : pp. 111–145

Abstract

In this paper, we introduce and study analytically a vectorial Cahn-Hilliard reaction model coupled with rate-dependent damage processes. The recently proposed Cahn-Hilliard reaction model can e.g. be used to describe the behavior of electrodes of lithium-ion batteries as it includes both the intercalation reactions at the surfaces and the separation into different phases. The coupling with the damage process allows considering simultaneously the evolution of a damage field, a second important physical effect occurring during the charging or discharging of batteries. Mathematically, this is realized by a Cahn-Larch systemwith a non-linear Newton boundary condition for the chemical potential and a doubly non-linear differential inclusion for the damage evolution. We show that this system possesses an underlying generalized gradient structure which incorporates the non-linear Newton boundary condition. Using this gradient structure and techniques from the field of convex analysis we are able to prove constructively the existence of weak solutions.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jpde.v30.n2.2

Journal of Partial Differential Equations, Vol. 30 (2017), Iss. 2 : pp. 111–145

Published online:    2017-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    35

Keywords:    Cahn-Hilliard reaction system

Author Details

Christiane Kraus

Arne Roggensack

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