Thermal characterization of frictional interfaces using experiments and inverse heat conduction methods

Many studies have been conducted on the mechanical aspects of friction interfaces. The importance of temperature is often highlighted, but very few studies have modeled and measured this fundamental aspect of a sliding contact. In many industrial fields, the thermal phenomenon is a dimensioning criterion (space industry. railway…). The friction of materials leads to increased temperatures which can generate degradations of the contact surfaces. It is for this reason that it is fundamental to have a thermal model representative of the sliding interface. One of the thermal models describes the heat transfer in the sliding interface introduces three macroscopic thermal contact parameters hsc, α and φg. This paper presents experimental results about the simultaneous estimation for these three thermal parameters of a sliding contact from several experiments for the couple of materials steel/bronze.