Volume 58, Number 4, May 2002
|Page(s)||503 - 509|
|Section||Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics|
|Published online||01 May 2002|
Behavior of adhesive boundary lubricated surfaces under shear: A new dynamic transition
Centre de Recherche Paul Pascal, CNRS-Université
Bordeaux 1 Avenue Albert Schweitzer, 33600 Pessac,
Accepted: 26 February 2002
Adhesive boundary lubricated surfaces display different response under shear depending upon the experimental conditions. Particularly, the transition between different dynamic phases can be triggered by changing the velocity of sliding. Above some critical driving velocity, the sliding transits from a steady kinetic state to an “inverted” stick-slip regime where, in contrast to conventional stick-slip, the friction spikes point down rather than up. Here we report a second transition occurring at higher shear rates, with a second steady-state smooth sliding regime emerging from the inverted stick-slip regime. The new steady state exhibits a lower friction than the one of the first steady state at the onset of the transition to the stick-slip regime. A sequence of complex oscillatory sliding states with periodic and aperiodic patterns can be observed between the high-velocity smooth steady state and the highly periodic stick-slip regime.
PACS: 46.55.+d – Tribology and mechanical contacts / 81.40.Pq – Friction, lubrication, and wear
© EDP Sciences, 2002
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.