Surface Models For Contact Laws
Author(s)
K. Willner
Abstract
Contact laws for rough surfaces are used to obtain, e.g., contact stiffness or
contact conductivity. Usually contact laws are derived on the basis of asper-
ity deformation models in conjunction with a stochastic roughness model.
As the stochastic parameters depend strongly on the measurement proce-
dure, the obtained contact laws have to be used carefully. Fractal surface
parameters can be obtained, which are independent of sampling interval or
length, but the resulting contact laws are still dependent on these values.
1 Statistical model
Contact laws for rough surfaces are usually based on a statistical sur-
face description combined with an asperity deformation model. While
the surface model gives the probability P(z, k) of a summit with given
height z and given curvature fc, the deformation model describes the
contact behavior of a single summit. This modular approac
Keywords
Related Book
Other papers in this volume
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