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dc.contributor.authorBIGERELLE, Maxence
dc.contributor.authorNIANGA, Jean-Marie
dc.contributor.authorNAJJAR, D.
dc.contributor.author
 hal.structure.identifier
IOST, Alain
211915 Mechanics surfaces and materials processing [MSMP]
dc.contributor.authorHUBERT, C.
dc.contributor.authorKUBIAK, K. J.
dc.date.accessioned2014
dc.date.available2014
dc.date.issued2013
dc.date.submitted2014
dc.identifier.issn0301-679X
dc.identifier.urihttp://hdl.handle.net/10985/8561
dc.description.abstractThis paper proposes a new method of roughness peaks curvature radii calculation and its application to tribological contact analysis as characteristic signature of tribological contact. This method is introduced via the classical approach of the calculation of radius of asperity. In fact, the proposed approach provides a generalization to fractal profiles of the Nowicki's method [Nowicki. Wear Vol.102, p.161–176,1985] by introducing a fractal concept of curvature radii of surfaces, depending on the observation scale and also numerically depending on horizontal lines intercepted by the studied profile. It is then established the increasing of the dispersion of the measures of that lines with that of the corresponding radii and the dependence of calculated radii on the fractal dimension of the studied curve. Consequently, the notion of peak is mathematically reformulated. The efficiency of the proposed method was tested via simulations of fractal curves such as those described by Brownian motions. A new fractal function allowing the modelling of a large number of physical phenomena was also introduced, and one of the great applications developed in this paper consists in detecting the scale on which the measurement system introduces a smoothing artifact on the data measurement. New methodology is applied to analysis of tribological contact in metal forming process.
dc.language.isoen
dc.publisherElsevier
dc.rightsPost-print
dc.subjectRoughness
dc.subjectFriction
dc.subjectCurvature radius
dc.subjectFractal
dc.titleRoughness signature of tribological contact calculated by a new method of peaks curvature radius estimation on fractal surfaces
dc.typdocArticle dans une revue avec comité de lecture
dc.localisationCentre de Lille
dc.subject.halSciences de l'ingénieur: Matériaux
ensam.audienceInternationale
ensam.page235-247
ensam.journalTribology International
ensam.issue65
hal.identifierhal-01065878
hal.version1
hal.statusaccept


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