J. Jarusek et C. Eck, DYNAMIC CONTACT PROBLEMS WITH FRICTION IN LINEAR VISCOELASTICITY, Comptes rendus de l'Academie des sciences. Serie 1, Mathematique, 322(5), 1996, pp. 497-502
The existence of a solution to the dynamic contact problem with Coulom
b friction is proved for a particular domain and homogeneous isotropic
material. The way of the proof is based on the penalization and regul
arization methods and on the explicit calculation of the solution to a
certain auxiliary problem.