Adhesive Contact And Kinetics Of Adherence Of A Rigid Conical Punch On An Elastic Half-space (natural Rubber)
Author(s)
D. Vallet & M. Barquins
Abstract
Adhesive contact and kinetics of adherence of a
rigid conical punch on an elastic half-space
(natural rubber)
D. Vallet, M. Barquins
Laboratoire de Physique et Mecanique des Milieux Heterogenes,
Espci, France
Abstract
The equilibrium contact of a rigid conical punch, applied against the flat and
smooth surface of a soft elastomer sample (unfilled natural rubber), is studied
with help of fracture mechanics concepts which can easily be introduced in this
class of problems by using Sneddon's solution (1965) of Boussinesq's problem
extended to all axisymmetric adhesive punches with a convex profile as a cone.
The kinetics of adherence is measured when an imposed tensile force is applied
in order to disturb the size of the contact area. Variations of the strain energy
release rate G and of the associated dissipation function <& = (G - w)/w, where w
is the Dupre energy of adhesion, are studied as a function of the crack
propagation speed V at the interface between a cone made of PM
Keywords
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