Calculus of Variations and Geometric Measure Theory
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G. Lazzaroni - R. Molinarolo - F. Solombrino

Radial solutions for a dynamic debonding model in dimension two

created by lazzaroni on 09 Dec 2020
modified by solombrin on 10 Dec 2020

[BibTeX]

Preprint

Inserted: 9 dec 2020
Last Updated: 10 dec 2020

Year: 2020

ArXiv: 2012.04993 PDF

Abstract:

In this paper we deal with a debonding model for a thin film in dimension two, where the wave equation on a time-dependent domain is coupled with a flow rule (Griffith's principle) for the evolution of the domain. We propose a general definition of energy release rate, which is central in the formulation of Griffith's criterion. Next, by means of an existence result, we show that such definition is well posed in the special case of radial solutions, which allows us to employ representation formulas typical of one-dimensional models.


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