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Article Dans Une Revue European Physical Journal E: Soft matter and biological physics Année : 2012

Slip dynamics at a patterned rubber/glass interface during stick-slip motions

Résumé

We report on an experimental study of heterogeneous slip instabilities generated during stick- slip motions at a contact interface between a smooth rubber substrate and a patterned glass lens. Using a sol-gel process, the glass lens is patterned with a lattice of parallel ridges (wave length, 1.6 μm, amplitude 0.35μm). Friction experiments using this patterned surface result in the systematic occurrence of stick-slip motions over three orders of magnitude in the imposed driving velocity while stable friction is achieved with a smooth surface. Using a contact imaging method, real-time displacement fields are measured at the surface of the rubber substrate. Stick-slip motions are found to involve the localized propagation of transverse interface shear cracks whose velocity is observed to be remarkably independent on the driving velocity.
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Dates et versions

hal-00731424 , version 1 (12-09-2012)

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Citer

M.C. Audry, Christian Frétigny, A. Chateauminois, J. Teisseire, E. Barthel. Slip dynamics at a patterned rubber/glass interface during stick-slip motions. European Physical Journal E: Soft matter and biological physics, 2012, 35, pp.83. ⟨10.1140/epje/i2012-12083-0⟩. ⟨hal-00731424⟩
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