Frictional Heating Effect on the Propagation of Surface Crack Under Hertzian Contact Loading Available to Purchase

In this paper frictional heating effect on the propagation of surface crack under Hertzian contact loading based on the fracture mechanics is investigated. For theoretically analyzing this effect, we estimated stress intensity factor of surface crack-tip in shear mode under Hertzian contact sliding friction. Theoretical results showed that thermal load (Th), Peclet number (Pe) and crack angle (β) are very important factors on the propagation of surface crack under Hertzian contact loading. When thermal load (Th) and Peclet number (Pe) are constant, maximum variable range of stress intensity factor, ΔK II, is located in the range of surface crack angle 130°∼150°.