Adhésion et cinétique de décollement d'un cône rigide tronqué en contact avec un élastomère souple

Abstract

The equilibrium contact and the kinetics of adherence, at an imposed applied load, of a rigid flat-ended cone in contact with the flat and smooth surface of a soft elastomer sample (unfilled natural rubber) are examined with the help of fracture mechanics concepts. The variation of the dissipation function Φ=( G− w)/ w, where G is the strain energy release rate and w the Dupré energy of adhesion, is studied as a function of the crack propagation speed V at the interface between the flat-ended rigid cone and the elastic solid. As expected, a master curve Φ( V) is found, confirming the variation of Φ as the 0.55 power function of V, as recently established by Barquins et al. in adherence experiments, with the same rubber-like material. To cite this article: S. Bouissou, M. Barquins, C. R. Physique 3 (2002) 239–245.