Smoothness and isotropy of contacting body surfaces can vary considerably for different contact problems. Classifying the surfaces roughness two types can be distinguished: a) surfaces with randomly distributed asperities, and b) asperities with algorithmic structure, e.g. the considered surface shows different macro properties in different directions. Mechanical characteristics for the associated contact problems of the first type a) are obtained via statistically distributed asperities. Constitutive modeling is applied for problems of the second type b). Such models are based on the generalization of Coulomb’s friction law into the anisotropic domain, see Zmitrowicz [
] and Curnier [
].When looking at practical problems concerning friction there are some situations in which the tangential elasticity of the contact surfaces should be taken into account. Such a model including anisotropy for both friction and adhesion has been developed and analyzed numerically in Konyukhov and Schweizerhof [
]. In the current contribution we discuss the validation of this model with a particular experimental test. The contact surfaces are chosen to possess elastic properties, thus a corrugated rubber mat is taken. The results of the experiments show the necessity to use the model including anisotropy for both friction and adhesion. Thus, some originally surprising experimental phenomena, as e.g. geometrical isotropy despite obvious physical anistropies can be explained only within the proposed model, though the latter shows rather qualitative correlations then quantitative ones.
It was shown in experiments that the classical model of orthotropic friction does not lead to the good correlation and cannot describe a particular phenomena when a sliding block shows isotropic behavior. A good qualitative result can be achieved with the model involving both orthotropy for adhesion and friction.