Static shear crack with a zone of slip-weakening
نویسندگان
چکیده
منابع مشابه
Shear heating of a fluid-saturated slip-weakening dilatant fault zone 1. Limiting regimes
[1] The one-dimensional model of Rudnicki and Chen [1988] for a slip-weakening dilating fault is extended to include shear heating. Because inertia is not included, instability (a seismic event) corresponds to an unbounded slip rate. Shear heating tends to increase pore pressure and decrease the effective compressive stress and the resistance to slip and consequently tends to promote instabilit...
متن کاملShear heating of a fluid-saturated slip-weakening dilatant fault zone: 2. Quasi-drained regime
[1] This paper analyzes slip on a fluid-infiltrated dilatant fault for imposed (tectonic) strain rates much slower than the rate of fluid exchange between the gouge zone and the surroundings and for exchange of heat slower than of fluid, typical of interseismic or most laboratory loading conditions. The limiting solution, corresponding to the infinitely rapid drainage rate, developed in the com...
متن کاملThe distributions of slip rate and ductile deformation in a strike- slip shear zone
A simple mechanical model and dimensional analysis are used to derive a scaling law for the partitioning between slip rate on a strike-slip fault and distributed deformation in the far-field. The depth of the fault, the distributions of stress, strain rate and slip rate are solved for a given far-field force or displacement in a 2-D medium with a linear temperature-dependent viscous rheology. A...
متن کاملDynamic Plane-strain Shear Rupture with a Slip-weakening Friction Law Calculated by a Boundary Integral Method
A numerical boundary integral method, relating slip and traction on a plane in an elastic medium by convolution with a discretized Green function, can be linked to a slip-dependent friction law on the fault plane. Such a method is developed here in two-dimensional plane-strain geometry. The method is more efficient for a planar source than a finite difference method, and it does not suffer from...
متن کاملFrictional experiments of dolerite at intermediate slip rates with controlled temperature: Rate weakening or temperature weakening?
[1] A rotary shear apparatus has been newly set up in Chiba University which can control the temperature near a sliding surface, Tmeas, up to 1000°C independently from slip rate, V. Frictional experiments at 0.010 m/s, 1 MPa normal stress, and variable Tmeas for dolerite have revealed a remarkable effect of temperature on the friction coefficient, f. With increasing Tmeas, f starts from 0.7 to ...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 1986
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.1986.tb01980.x