Tribology Letters

, Volume 11, Issue 2, pp 111-115

First online:

Spanning Time Scales in Dynamic Simulations of Atomic-Scale Friction

  • Yongsheng LengAffiliated withDepartment of Chemical Engineering, University of Washington
  • , Shaoyi JiangAffiliated withDepartment of Chemical Engineering, University of Washington

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We investigate the sliding dynamics of atomic-scale friction at different time scales. Depending on the dynamic inertia and sliding velocity of a cantilever, different dynamic behaviors are observed from both conventional molecular dynamics (MD) simulation and temporally hybrid molecular simulation methods. The mechanism of friction dissipation is also investigated. For either smooth sliding or stick–slip, a non-zero work of friction is obtained, while surface forces are no longer conservative.

atomic-scale friction sliding dynamics time scales temporally hybrid algorithm damping energy dissipation