Influence of a single asperity on stresses during lubricated sliding contact on DLC-coated system - École des Ponts ParisTech Accéder directement au contenu
Communication Dans Un Congrès Année : 2013

Influence of a single asperity on stresses during lubricated sliding contact on DLC-coated system

Résumé

Extreme low wear rates of Diamond-Like Carbon (DLC) coatings are one the properties that makes them particularly interesting for numerous applications, like automotive ones. This property is often observed during characterisation tests under basic sollicitations like fretting, sliding, rolling-sliding. However, tests on cam-tappet systems show the coating lifetime can be highly reduced under special coupled conditions, such as the presence of an asperity breaking through the lubrication film into the contact area. Its influence on surface and subsurface stresses has to be quanti ed to eventually obtain a predictive model of the coating lifetime. The purpose of this study is to develop a simpli ed numerical model that is consistent with elasto-hydrodynami-lubrication (EHD) approxima- tions for estimating the stress perturbation due to such an asperity.
Fichier principal
Vignette du fichier
Abstract_G.PAGNOUX.pdf (90.71 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-00879057 , version 1 (31-10-2013)

Identifiants

  • HAL Id : hal-00879057 , version 1

Citer

Geoffrey Pagnoux, Siegfried Fouvry, Michaël Peigney, Benoit Delattre, Guillaume Mermat-Rollet. Influence of a single asperity on stresses during lubricated sliding contact on DLC-coated system. 40th Leeds-Lyon Symposium on Tribology, Sep 2013, Lyon, France. 2 p. ⟨hal-00879057⟩
407 Consultations
65 Téléchargements

Partager

Gmail Facebook X LinkedIn More