Surfaces generated by abrasive finishing processes as self-affine fractals Online publication date: Wed, 22-Jul-2009
by T.R. Thomas, B-G. Rosen
International Journal of Surface Science and Engineering (IJSURFSE), Vol. 3, No. 4, 2009
Abstract: Self-affine fractals offer a tool for characterising surface roughness. Fractal parameters are scale-invariant and can be derived from the Structure Function (SF): if computation of the SF is not practicable then parameters can be derived from roughness parameters available on many commercial software packages. The three-dimensional SF gives information about anisotropy. SFs can offer a demonstration of the effect of wear on surface topography in tribological investigations. Finally the SF can be used with material properties to obtain a low-pass cutoff for the calculation of surface data for use in rough contact mechanics.
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