Optimal Energy Dissipation in Sliding Friction Simulations (Articolo in rivista)

Type
Label
  • Optimal Energy Dissipation in Sliding Friction Simulations (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s11249-012-9936-5 (literal)
Alternative label
  • Benassi, A.; Vanossi, A.; Santoro, G. E.; Tosatti, E. (2012)
    Optimal Energy Dissipation in Sliding Friction Simulations
    in Tribology letter
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Benassi, A.; Vanossi, A.; Santoro, G. E.; Tosatti, E. (literal)
Pagina inizio
  • 41 (literal)
Pagina fine
  • 49 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 48 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 9 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR Ist Energet & Interfasi CNR IENI; CNR Ist Nanosci; International School for Advanced Studies; CNR IOM Democritos Natl Simulat Ctr; Abdus Salam International Centre for Theoretical Physics (literal)
Titolo
  • Optimal Energy Dissipation in Sliding Friction Simulations (literal)
Abstract
  • Non-equilibrium molecular dynamics simulations, of crucial importance in sliding friction, are hampered by arbitrariness and uncertainties in the removal of the frictionally generated Joule heat. Building upon general pre-existing formulation, we implement a fully microscopic dissipation approach which, based on a parameter-free, non-Markovian, stochastic dynamics, absorbs Joule heat equivalently to a semi-infinite solid, and harmonic substrate. As a test case, we investigate the stick-slip friction of a slider over a two-dimensional Lennard-Jones solid, comparing our virtually exact frictional results with approximate ones from commonly adopted dissipation schemes. Remarkably, the exact results can be closely reproduced by a standard Langevin dissipation scheme, once its parameters are determined according to a general and self-standing variational procedure. (literal)
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