Influence of self-affine roughness on the detachment stress at an elastic-inelastic interface

This work concentrates on the influence of roughness on the detachment stress of an elastic body in contact to self-affine rough surfaces. It is shown that the self-affine roughness influences the detachment stress depending on the elastic modulus E and the details of the specific roughness. The roughness influence is more dominant for detachment lengths lambda smaller or comparable to the in-plane roughness correlation length xi, and low roughness exponents H (lambda and low roughness exponents (H