ABSTRACT
In part I of this work (Mechanical behavior of Dionysos marble smooth joints under cyclic loading: I. Experiments), experiments on Dionysos marble for the determination of the mechanical properties of smooth, precut interfaces, were presented. These experiments have shown clearly normal stress and velocity dependence of friction coefficient values. In order to model mathematically such phenomena a Perzyna type viscoplastic constitutive model for frictional interfaces is proposed. In accordance with the experimental results, the internal non-linear dynamics of interface degradation are explored by adding a rate- dependence on the viscoplastic behavior.
