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Simulation of the Long-term Behaviour of a Fault with Two Asperities : Volume 17, Issue 6 (15/12/2010)

By Dragoni, M.

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Book Id: WPLBN0003976208
Format Type: PDF Article :
File Size: Pages 8
Reproduction Date: 2015

Title: Simulation of the Long-term Behaviour of a Fault with Two Asperities : Volume 17, Issue 6 (15/12/2010)  
Author: Dragoni, M.
Volume: Vol. 17, Issue 6
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Santini, S., & Dragoni, M. (2010). Simulation of the Long-term Behaviour of a Fault with Two Asperities : Volume 17, Issue 6 (15/12/2010). Retrieved from

Description: Dipartimento di Fisica, Università di Bologna, Viale Carlo Berti Pichat 8, 40127 Bologna, Italy. A system made of two sliding blocks coupled by a spring is employed to simulate the long-term behaviour of a fault with two asperities. An analytical solution is given for the motion of the system in the case of blocks having the same friction. An analysis of the phase space shows that orbits can reach a limit cycle only after entering a particular subset of the space. There is an infinite number of different limit cycles, characterized by the difference between the forces applied to the blocks or, as an alternative, by the recurrence pattern of block motions. These results suggest that the recurrence pattern of seismic events produced by the equivalent fault system is associated with a particular stress distribution which repeats periodically. Admissible stress distributions require a certain degree of inhomogeneity, which depends on the geometry of fault system. Aperiodicity may derive from stress transfers from neighboring faults.

Simulation of the long-term behaviour of a fault with two asperities

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