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<p>The current paper analyses surface measurement results from the “The surface-topography challenge”. By dividing each surface in four sub-surfaces, statistical methods can be used on the surface roughness parameters, as well as on the contact-mechanics parameters. Concerning the A14 and A15 surfaces, the <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(S_a\)</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi>S</mi> <mi>a</mi> </msub> </math></EquationSource> </InlineEquation> and <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(S_q\)</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi>S</mi> <mi>q</mi> </msub> </math></EquationSource> </InlineEquation> values of surface A15 are roughly 10% higher than those of surface A14. The roughness parameters of the surfaces Q53 and Q94 are virtually identical. The contact stiffness of the two A surfaces are identical, the same is true for the two Q surfaces.</p>

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Subset Analysis and Contact-Mechanics Analysis for Samples Included in the “Surface-Topography Challenge”

  • 期刊论文

  • 发表日期：

    2025年10月18日

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  • P. Sainsot,
  • A. A. Lubrecht

摘要

The current paper analyses surface measurement results from the “The surface-topography challenge”. By dividing each surface in four sub-surfaces, statistical methods can be used on the surface roughness parameters, as well as on the contact-mechanics parameters. Concerning the A14 and A15 surfaces, the \(S_a\) S a and \(S_q\) S q values of surface A15 are roughly 10% higher than those of surface A14. The roughness parameters of the surfaces Q53 and Q94 are virtually identical. The contact stiffness of the two A surfaces are identical, the same is true for the two Q surfaces.