Stabilizing stick-slip friction

Details Stabilizing stick-slip friction Stabilizing stick-slip friction

2011-04-11

arxiv.org/abs/1104.1950v1

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 4 figures

Scientific paper

Even the most regular stick-slip frictional sliding is always stochastic, with irregularity in both the intervals between slip events and the sizes of the associated stress drops. Applying small-amplitude oscillations to the shear force, we show, experimentally and theoretically, that the stick-slip periods synchronize. We further show that this phase-locking is related to the inhibition of slow rupture modes which forces a transition to fast rupture, providing a possible mechanism for observed remote triggering of earthquakes. Such manipulation of collective modes may be generally relevant to extended nonlinear systems driven near to criticality.

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