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SIAM Journal on Numerical Analysis 49, 5 (2011) 2039-2056
Analysis of the modified mass method for the dynamic Signorini problem with Coulomb friction
David Doyen 1, Alexandre Ern 2
(2011)

The aim of the present work is to analyze the modified mass method for the dynamic Signorini problem with Coulomb friction. We prove that the space semi-discrete problem is equivalent to an upper semi-continuous one-sided Lipschitz differential inclusion and is, therefore, well-posed. We derive an energy balance. Next, considering an implicit time-integration scheme, we prove that, under a certain condition on the discretization parameters, the fully discrete problem is well-posed. For a fixed discretization in space, we prove also that the fully discrete solutions converge to the space semi-discrete solution when the time step tends to zero.
1 :  EDF R&D
EDF
2 :  Centre d'Enseignement et de Recherche en Mathématiques et Calcul Scientifique (CERMICS)
Ecole des Ponts ParisTech
Mathématiques/Analyse numérique
Finite elements – Time-integration scheme – Elastodynamics – Unilateral contact – Coulomb friction – Differential inclusion – Modified mass method
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