Normal Contact Model of Fractal Surfaces Considering Friction and Asperity Interactions
Yu Cheng,
Zhenping Wan,
Yingbin Bu
et al.
Abstract:Friction as well as asperity interactions have significant influence on the contact area and force of rough surfaces. In this work, a single-asperity, elastoplastic contact model, considering friction, is established by means of continuum mechanics and power-exponential functions. Then, the deformation of the asperity interactions is modeled by the displacement of the average line for asperity height. Using fractal theory, the actual deformation and contact stiffness of an asperity are derived, which take the … Show more
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