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Origin in Multiscale Contact Mechanics

Origin User

Nestor Rodriguez
Senior Staff Scientist
Becton Dickinson and Co.
Origin User Since 1996

Problem

Analysis of surface topography, to be used in multi-scale contact mechanics (MCM) and the effects of roughness asymmetry on the MCM analysis. The generation of the power spectral distribution (PSD) of the surface and its corresponding Hurst exponent.

Solution

Analysis was facilitated by programming of the calculations and by batch analysis of files.

Key Features

Profile Plot of surface roughness vs. XY position. Auxiliary plots show power spectral distribution along an arbitrary line in X and Y dimensions.

   Profile Plot of surface roughness vs. XY position. Auxiliary plots show power spectral distribution along an arbitrary line in X and Y dimensions.


Plot of the Hurst Exponent and overlay of linear fit results.

   Plot of the Hurst Exponent and overlay of linear fit results. Fractal dimension of the surface Df = 3-H. The roughness of the surface transforms affinely with the fractal dimension.

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