Journal
TRIBOLOGY INTERNATIONAL
Volume 93, Issue -, Pages 137-141Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2015.09.013
Keywords
Surface topography; Spectral moments; Deterministic analysis
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Funding
- European Social Fund [3211-09-100049]
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Understanding contact between rough surfaces is of critical importance to the design of many engineering applications. Contact models rely on material properties and surface topography of the contacting surfaces as input parameters. Hence, the relevance of the contact models is dependent on their inherent assumptions and the accuracy with which the input parameters are determined. We have evaluated the difference between the surface topography parameters calculated with a statistical and deterministic approach for actual engineering surfaces. We have found topography values that change up to 300% depending on the method used, and attribute this to the stringent definition of an asperity-peak in the case of deterministic analysis as opposed to statistical analysis, which not only considers asperity-peaks but also asperity-shoulders. (C) 2015 Elsevier Ltd. All rights reserved.
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