An example of slip instability resulting from displacement-varying strength

D. Lockner; J. Byerlee

doi:10.1007/bf00877163

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An example of slip instability resulting from displacement-varying strength

D. Lockner·J. Byerlee

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Abstract

A rock cylinder, containing a clay-filled sawcut making an angle of 30?? to the sample axis, was deformed at constant confining and pore pressures and constant remote shortening rate. The sawcut surfaces contained a series of regularly spaced ridges and grooves oriented perpendicular to the direction of shear. The interaction of these grooved surfaces resulted in a sliding strength which varied periodically with displacement. By varying the effective machine stiffness through the use of an electronic feedback circuit, a range of stable and unstable slip behavior was achieved. In this way, we examined fault slip behavior which was dominated by displacement-dependent strength. ?? 1990 Birkha??user Verlag.

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D. Lockner, J. Byerlee. 1990. An example of slip instability resulting from displacement-varying strength. https://doi.org/10.1007/bf00877163

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