Identification of local lubrication regimes on textured surfaces by 3D roughness curvature radius

C. Hubert, K. J. Kubiak, M. Bigerelle, L. Dubar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper proposes a new method of 3D roughness peaks curvature radius calculation and its application to tribological contact analysis as a characteristic signature of tribological contact. This method is introduced through the classical approach of calculation of radius of asperity in 2D. Actually, the proposed approach provides a generalization of Nowicki's method [1], depending on horizontal lines intercepting the studied profile. Here, the basic idea consists in intercepting the rough surface by a horizontal plane and to calculate the cross section area without including "islands into islands", i.e. the small peaks enclosed in bigger ones. Then, taking into account the maximal value of the height amplitude of the roughness included into this area, an appropriate algorithm is proposed, without requiring the classical hypothesis of derivability, which may be unstable when applied to engineering surfaces. This methodology is validated on simulated surfaces, and applied to engineering surfaces created experimentally, with a laboratory aluminium strip drawing process. The regions of the textured and lubricated specimens surface are analysed, and the results gives interesting prospects to qualitatively identify the local lubrication regimes: regions with high curvature radii correspond to severe contact (boundary/mixed lubrication regime) while regions with low curvature radii correspond to hydrodynamic lubrication regime.

Original languageEnglish
Title of host publicationTribology in Manufacturing Processes and Joining by Plastic Deformation
PublisherTrans Tech Publications Ltd
Pages120-125
Number of pages6
Volume966-967
ISBN (Print)9783038351276
DOIs
Publication statusPublished - 2014
Event6th International Conference on Tribology in Manufacturing Processes and Joining by Plastic Deformation - Technicshe Universitat Darmstadt, Darmstadt, Germany
Duration: 22 Jun 201424 Jun 2014
Conference number: 6
http://www.ptu.tu-darmstadt.de/mn_wirueberuns/startseite/tagungen/index.en.jsp (Link to Conference Details )

Publication series

NameAdvanced Materials Research
Volume966-967
ISSN (Print)10226680
ISSN (Electronic)16628985

Conference

Conference6th International Conference on Tribology in Manufacturing Processes and Joining by Plastic Deformation
Abbreviated titleICTMP 2014
CountryGermany
CityDarmstadt
Period22/06/1424/06/14
Internet address

    Fingerprint

Cite this

Hubert, C., Kubiak, K. J., Bigerelle, M., & Dubar, L. (2014). Identification of local lubrication regimes on textured surfaces by 3D roughness curvature radius. In Tribology in Manufacturing Processes and Joining by Plastic Deformation (Vol. 966-967, pp. 120-125). (Advanced Materials Research; Vol. 966-967). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/AMR.966-967.120