no. 1
Existence and uniqueness of solutions to dynamical unilateral contact problems with coulomb friction: the case of a collection of points
ESAIM: Mathematical Modelling and Numerical Analysis , Tome 48 (2014) no. 1, pp. 1-25.

This study deals with the existence and uniqueness of solutions to dynamical problems of finite freedom involving unilateral contact and Coulomb friction. In the frictionless case, it has been established [P. Ballard, Arch. Rational Mech. Anal. 154 (2000) 199-274] that the existence and uniqueness of a solution to the Cauchy problem can be proved under the assumption that the data are analytic, but not if they are assumed to be only of class C∞. Some years ago, this finding was extended [P. Ballard and S. Basseville, Math. Model. Numer. Anal. 39 (2005) 59-77] to the case where Coulomb friction is included in a model problem involving a single point particle. In the present paper, the existence and uniqueness of a solution to the Cauchy problem is proved in the case of a finite collection of particles in (possibly non-linear) interactions.

DOI : 10.1051/m2an/2013092
Classification : 70F40, 49J52, 34A60
Mots clés : unilateral dynamics with friction, frictional dynamical contact problems, existence and uniqueness 
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Charles, Alexandre; Ballard, Patrick. Existence and uniqueness of solutions to dynamical unilateral contact problems with coulomb friction: the case of a collection of points. ESAIM: Mathematical Modelling and Numerical Analysis , Tome 48 (2014) no. 1, pp. 1-25. doi : 10.1051/m2an/2013092. http://www.numdam.org/articles/10.1051/m2an/2013092/

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