Source properties of dynamic rupture pulses with off-fault plasticity
نویسندگان
چکیده
منابع مشابه
Off-fault tensile cracks: A link between geological fault observations, lab experiments, and dynamic rupture models
[1] We examine the local nature of the dynamic stress field in the vicinity of the tip of a semi-infinite sub-Rayleigh (slower than the Rayleigh wave speed, cR) mode II crack with a velocity-weakening cohesive zone. We constrain the model using results from dynamic photoelastic experiments, in which shear ruptures were nucleated spontaneously in Homalite-100 plates along a bonded, precut, and i...
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One of the challenging tasks in predicting near-source ground motion for fu4 ture earthquakes is to anticipate the spatio-temporal evolution of the rupture process. 5 The final size of an event but also its temporal properties (propagation velocity, slip ve6 locity) depend on the distribution of shear stress on the fault plane. Though these in7 cipient stresses are not known for future earthqua...
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[1] One of the challenging tasks in predicting near-source ground motion for future earthquakes is to anticipate the spatiotemporal evolution of the rupture process. The final size of an event but also its temporal properties (propagation velocity, slip velocity) depend on the distribution of shear stress on the fault plane. Though these incipient stresses are not known for future earthquakes, ...
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Spontaneous bilateral mode II shear ruptures were nucleated on faults in photoelastic Homalite plates loaded in uniaxial compression. Rupture velocities were measured and the interaction between the rupture front and short fault branches was observed using high-speed digital photography. Fault branches were formed by machining slits of varying lengths that intersected the fault plane over a ran...
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Recent studies of strong motion data consistently show that the risetime (duration of slip at particular locations on the fault) is significantly shorter than the overall rupture duration. The physical explanation for this observation and its implications have become central issues in earthquake source studies. Two classes of mechanisms have been proposed to explain short risetimes. One explana...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Solid Earth
سال: 2013
ISSN: 2169-9313
DOI: 10.1002/jgrb.50213