Rubber friction on (apparently) smooth lubricated surfaces
Authors: M. Mofidi, B. Prakash, B. N. J. Persson, O. Albohl
Abstract: We study rubber sliding friction on hard lubricated surfaces. We show that even if the hard surface appears smooth to the naked eye, it may exhibit short wavelength roughness, which may give the dominant contribution to rubber friction. That is, the observed sliding friction is mainly due to the viscoelastic deformations of the rubber by the substrate surface asperities. The presented results are of great importance for rubber sealing and other rubber applications involving (apparently) smooth surfaces.
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