Non-monotonic dependence of the friction coefficient on heterogeneous stiffness (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Non-monotonic dependence of the friction coefficient on heterogeneous stiffness (Articolo in rivista) (literal)

Anno

• 2014-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1038/srep06772 (literal)

Alternative label

• Giacco, F.; Ciamarra, M. Pica; Saggese, L.; de Arcangelis, L.; Lippiello, E. (2014)
  Non-monotonic dependence of the friction coefficient on heterogeneous stiffness
  in Scientific reports (Nature Publishing Group)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Giacco, F.; Ciamarra, M. Pica; Saggese, L.; de Arcangelis, L.; Lippiello, E. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 4 (literal)

Rivista

• Scientific reports (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 4 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• University of Naples Federico II; Seconda Universita degli Studi di Napoli; CNISM; Nanyang Technological University; Seconda Universita degli Studi di Napoli; CNISM (literal)

Titolo

• Non-monotonic dependence of the friction coefficient on heterogeneous stiffness (literal)

Abstract

• The complexity of the frictional dynamics at the microscopic scale makes difficult to identify all of its controlling parameters. Indeed, experiments on sheared elastic bodies have shown that the static friction coefficient depends on loading conditions, the real area of contact along the interfaces and the confining pressure. Here we show, by means of numerical simulations of a 2D Burridge-Knopoff model with a simple local friction law, that the macroscopic friction coefficient depends non-monotonically on the bulk elasticity of the system. This occurs because elastic constants control the geometrical features of the rupture fronts during the stick-slip dynamics, leading to four different ordering regimes characterized by different orientations of the rupture fronts with respect to the external shear direction. We rationalize these results by means of an energetic balance argument. (literal)

Prodotto di

• Modellizzazione e studi \"ab-initio\" di materiali funzionali e Sistemi complessi (MD.P02.023.001) (Modulo)

Autore CNR

• ANIELLO SAGGESE (Persona)
• MASSIMO PICA CIAMARRA (Unità di personale interno)

Incoming links:

Autore CNR di

• ANIELLO SAGGESE (Persona)
• MASSIMO PICA CIAMARRA (Unità di personale interno)

Prodotto

• Modellizzazione e studi \"ab-initio\" di materiali funzionali e Sistemi complessi (MD.P02.023.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Scientific reports (Rivista)