Physics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004ep%26s...56.1121o&link_type=abstract
Earth, Planets and Space, Volume 56, p. 1121-1133.
Physics
Scientific paper
The classical application of rate and state dependent frictional constitutive laws has involved the instabilities developed between two sliding surfaces. In such a situation, the behaviour and evolution of asperities is the controlling mechanism of velocity weakening. However, most faults have a substantial thickness and it would appear that it is the bulk behaviour of the fault gouge, at whatever scale, that is important. The purpose of this paper is to explore how bulk frictional sliding behaviour may be described. We explore here the consequences of applying the rate and state framework initially developed to describe the frictional behaviour at the interface between two interacting sliding blocks, to frictional behaviour within a layer of gouge that has bulk elasticplastic constitutive behaviour. The approach taken here is to replace the relative sliding velocity in the classical formulation with the maximum shear strain rate, D, and the characteristic length with a characteristic shear strain, gc. This means that the frictional behaviour of the bulk material now evolves with shear strain rate, D, over a characteristic shear strain, gc. This approach still does not address the problem of reproducing natural recurrence times between instabilities, but perhaps places the problem in a new framework.
Hobbs B. E.
Ord Alison
Regenauer-Lieb Klaus
No associations
LandOfFree
A smeared seismicity constitutive model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A smeared seismicity constitutive model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A smeared seismicity constitutive model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1025145