SIMULATION NUMERIQUE D’UN CONTACT GLISSANT: ONDES DE CONTRAINTES

T. ZEGHLOUL

tzeghloul@iutang.univ-poitiers.fr

 B. VILLECHAISE

 Laboratoire de Mécanique des Solide, Université de Poitiers, France

Abstract. Frictional contact is often accompanied by instability phenomena. The numerical model presented in this paper enables the analysis of the frictional contact between a deformable rectangular polyurethane slab (photoelastic material) and a rigid plane surface. The slab is first pressed against a rigid surface with a prescribed normal displacement. Then an increasing tangential load is applied. We propose a semi-analytical modelling of the stress waves which occur in this type of contact.

Keywords: friction, Coulomb's law, stress waves, instability