Abstract

We generalize the Persson contact mechanics and rubberfrictiontheory to the case where both surfaces have surface roughness. The solids can be rigid, elastic, or viscoelastic and can be homogeneous or layered. We calculate the contact area, the viscoelastic contribution to the friction force, and the average interface separation as a function of the sliding speed and the nominal contact pressure. We illustrate the theory with numerical results for the classical case of a rubber block sliding on a road surface. We find that with increasing sliding speed, the influence of the roughness on the rubber block decreases to the extent that only the roughness of the stiff counter face needs to be considered.

Autore Pugliese

• Scaraggi Michele

Tutti gli autori

• Scaraggi M , Persson B.N.J.

Titolo volume/Rivista

THE JOURNAL OF CHEMICAL PHYSICS

Anno di pubblicazione

2015

ISSN

0021-9606

ISBN

Non Disponibile

Numero di citazioni Wos

11

Ultimo Aggiornamento Citazioni

25/04/2018

Numero di citazioni Scopus

13

Ultimo Aggiornamento Citazioni

26/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile