Course DMS B3: «Contact Mechanics and Elements of Tribology» Vladislav A. Yastrebov & Henry Proudhon Centre des Matériaux, MINES ParisTech, PSL University, CNRS UMR 7633, Evry, France February 8-12, 2021
Texte intégral
Documents relatifs
L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des
MINES ParisTech, Centre des Matériaux 19-23 février 2018.1. Contenu
Particular difficulties related to contact problems : multiphysical aspects, mathematical aspects. Fractality of surfaces Interface chemistry Hardly accessible
Metal-to-metal contact Wheel + rail tire (bandage) Special conical form Decrease rolling resistance Traction can be reduced by water, grease, oil.. Steel-steel friction f ≈ 0.75,
Known contact zone conformal geometry flat-to-flat, cylinder in a hole initially non-conformal geometry but huge pressure resulting in full contact. Unknown contact zone
• strong non-linearities of contact / friction problems. • non-uniqueness of solution for frictional problems
Rice, Fault rupture between dissimilar materials: ill-posedness, regularization, and slip-pulse response, J.. Rice, Slip dynamics at an interface between
• a law coupling unilateral contact, friction and adhesion (the RCCM model) to illustrate the importance of concepts as the basis of a new contact model (thermodynamic analysis) and