Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7453
AuthorsBizzarri, A. 
TitleModeling Repeated Slip Failures on Faults Governed by Slip-Weakening Friction
Issue Date11-Nov-2011
DOI10.1785/0120110141
URIhttp://hdl.handle.net/2122/7453
KeywordsDynamic modeling
Computational seismology
Subject Classification04. Solid Earth::04.04. Geology::04.04.06. Rheology, friction, and structure of fault zones 
AbstractThe single-body mass-spring analog model has been largely used to simulate the recurrence of earthquakes on faults described by rate- and statedependent rheology. In this paper, the fault was assumed to be governed by the classical slip-weakening (SW) law in which the frictional resistance linearly decreases as the developed slip increases. First, a closed-form fully analytical solution to the 1D elastodynamic problem was derived, expressing the time evolution of the slip and its time derivative. Second, a suitable mechanism for the recovery of stress during the interseismic stage of the rupture was proposed, and this stress recovery was shown quantitatively to make possible the simulation of repeated instabilities with the SW law. Moreover, the theoretical predictions were shown to be compatible with the numerical solutions obtained by adopting a rate and state constitutive model. The analytical solution developed here is, by definition, dynamically consistent and nonsingular. Moreover, the slip velocity function within the coseismic time window found here can be easily incorporated into slip inversion algorithms.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
Paper 30_acc_merged.fdf2.23 MBAdobe PDFView/Open
Show full item record

Page view(s)

69
Last Week
0
Last month
checked on Jun 28, 2017

Download(s)

125
checked on Jun 28, 2017

Google ScholarTM

Check

Altmetric