Effect of tangential load on the stressed state of rubbing rough bodies

Formulae for the estimation of any stress tensor component at some point in an elastic half-space are presented. With these formulae, the normal and maximum tangential stress distributions in the deep layers are studied in detail. The sinusoidal indenter may be used as a model for surface roughness. Some suppositions about possible destruction mechanisms of conjugate bodies under frictional contact are suggested. Surface roughness causes deep plastic deformation of surface layers. With rough surfaces high frequency oscillations occur and even with low sliding velocities the oscillations may achieve high frequencies.