Modeling of friction at different scale levels |
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Authors: | I G Goryacheva Yu Yu Makhovskaya |
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Institution: | (1) Nanotribology Laboratory for Information Storage and MEMS/NEMS, The Ohio State University, W 390 Scott Laboratory, 201 W. 19th Avenue, 43210-1142 Columbus, OH, USA |
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Abstract: | We construct a model for studying the common influence of the imperfect elasticity of actual bodies, the microgeometry of
their surfaces, and their adhesive interaction on the contact characteristics (the contact pressure distribution, the region
of actual contact) and on the sliding friction force. The model is based on the solution of a plane contact problem of sliding
of a rigid body with a regular relief on the boundary of a viscoelastic foundation with surface molecular attraction in the
gap between the surfaces taken into account. We analyze the influence of the surface microgeometry parameters at different
scale levels on the character of the surface interaction (the saturated or discrete contact) and the friction force for different
sliding velocities of the contacting bodies. |
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Keywords: | |
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