From infinitesimal to full contact between rough surfaces: Evolution of the contact area

Abstract : We carry out a statistically meaningful study on self-affine rough surfaces in elastic frictionless non-adhesive contact. We study the evolution of the true contact area under increasing squeezing pressure from zero up to full contact, which enables us to compare the numerical results both with asperity based models at light pressures and with Persson’s contact model for the entire range of pressures. A good agreement of numerical results with Persson’s model is obtained for the shape of the area-pressure curve especially near full contact, however, we obtain qualitatively different results for its derivative at light pressures. We investigate the effects of the longest and shortest wavelengths in surface spectrum, which control the surface Gaussianity and spectrum breadth (Nayak’s parameter). We revisit the influence of Nayak’s parameter, which is frequently assumed to play an important role in mechanics of rough contact.
Type de document :
Article dans une revue
International Journal of Solids and Structures, Elsevier, 2015, 52, pp.83-102. 〈10.1016/j.ijsolstr.2014.09.019〉
Liste complète des métadonnées

Littérature citée [61 références]  Voir  Masquer  Télécharger

https://hal-mines-paristech.archives-ouvertes.fr/hal-01113725
Contributeur : Odile Adam <>
Soumis le : jeudi 13 août 2015 - 11:42:57
Dernière modification le : mardi 27 mars 2018 - 16:06:15
Document(s) archivé(s) le : samedi 14 novembre 2015 - 10:20:35

Fichier

yastrebov2014arxiv.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Vladislav Yastrebov, Guillaume Anciaux, Jean-François Molinari. From infinitesimal to full contact between rough surfaces: Evolution of the contact area. International Journal of Solids and Structures, Elsevier, 2015, 52, pp.83-102. 〈10.1016/j.ijsolstr.2014.09.019〉. 〈hal-01113725〉

Partager

Métriques

Consultations de la notice

395

Téléchargements de fichiers

163