Simulation of the influence of rate- and state-dependent friction on the macroscopic behavior of complex fault zones with the lattice solid model

Abe, S., Dieterich, J. H., Mora, P. and Place, D. (2002) Simulation of the influence of rate- and state-dependent friction on the macroscopic behavior of complex fault zones with the lattice solid model. Pure And Applied Geophysics, 159 9: 1967-1983. doi:10.1007/s00024-002-8718-7


Author Abe, S.
Dieterich, J. H.
Mora, P.
Place, D.
Title Simulation of the influence of rate- and state-dependent friction on the macroscopic behavior of complex fault zones with the lattice solid model
Journal name Pure And Applied Geophysics   Check publisher's open access policy
ISSN 0033-4553
ISBN 3-7643-6915-9
Publication date 2002-01-01
Sub-type Article (original research)
DOI 10.1007/s00024-002-8718-7
Volume 159
Issue 9
Start page 1967
End page 1983
Total pages 17
Editor Prof. M. Matsu'ura
Prof. P. Mora
Dr A. Donnellan and Prof. X.C. Yin
Place of publication Basel, Switzerland
Publisher Birkhauser Verlag
Language eng
Subject 260206 Earthquake Seismology
Abstract In order to understand the earthquake nucleation process, we need to understand the effective frictional behavior of faults with complex geometry and fault gouge zones. One important aspect of this is the interaction between the friction law governing the behavior of the fault on the microscopic level and the resulting macroscopic behavior of the fault zone. Numerical simulations offer a possibility to investigate the behavior of faults on many different scales and thus provide a means to gain insight into fault zone dynamics on scales which are not accessible to laboratory experiments. Numerical experiments have been performed to investigate the influence of the geometric configuration of faults with a rate- and state-dependent friction at the particle contacts on the effective frictional behavior of these faults. The numerical experiments are designed to be similar to laboratory experiments by DIETERICH and KILGORE (1994) in which a slide-hold-slide cycle was performed between two blocks of material and the resulting peak friction was plotted vs. holding time. Simulations with a flat fault without a fault gouge have been performed to verify the implementation. These have shown close agreement with comparable laboratory experiments. The simulations performed with a fault containing fault gouge have demonstrated a strong dependence of the critical slip distance D-c on the roughness of the fault surfaces and are in qualitative agreement with laboratory experiments.
Keyword Geochemistry & Geophysics
Friction
Lattice Solid Model
Critical Slip Distance
Constitutive-equations
Rock Friction
Nucleation
Gouge
Instability
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Earth Systems Science Computational Centre Publications
 
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Created: Wed, 15 Aug 2007, 04:54:53 EST