Thermal Effects on Elasto-Plastic Contacts between Rough Surfaces
The effects of the steady-state frictional heating on the contact performance of surface asperities and subsurface stress fields between rough surfaces are investigated in this paper. The asperity distortion caused by the temperature variation in a tribological process, micro plastic flow of surface asperities, and the coupled thermo-elasto-plastic behavior of the materials, with and without considering the strain-hardening property of the materials are studied. In addition, the contact pressure, real area of contact, and average gap of real rough surface with different frictional heat inputs under the thermal elasto-plastic contact conditions are analyzed and discussed.
Chengyu Jiang, Geng Liu, Dinghua Zhang and Xipeng Xu
G. Liu et al., "Thermal Effects on Elasto-Plastic Contacts between Rough Surfaces", Materials Science Forum, Vols. 532-533, pp. 801-804, 2006