Applied Mathematics and Optimization, Vol.42, No.2, 169-202, 2000
Existence results for quasistatic contact problems with Coulomb friction
We prove the existence of a solution for an elastic frictional, quasistatic, contact problem with a Signorini non-penetration condition and a local Coulomb friction law. The problem is formulated as a time-dependent variational problem and is solved by the aid of an established shifting technique used to obtain increased regularity at the contact surface. The analysis is carried out by the aid of auxiliary problems involving regularized friction terms and a so-called normal compliance penalization technique.
Keywords:Coulomb friction;local friction law;regularization;penalization;normal compliance unilateral contact;linear elasticity;shifting;variational inequalities;quasistatic;existence