| Issue |
Europhys. Lett.
Volume 49, Number 4, February II 2000
|
|
|---|---|---|
| Page(s) | 410 - 416 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i2000-00164-y | |
| Published online | 01 September 2002 | |
Experimental and theoretical results of stress relaxations in a model of earthquake dynamics
1
Departamento de Física Fundamental,
Universidad Nacional de Educación a Distancia Avda. Senda del Rey 9, Madrid
28040, Spain
2
Departamento de Ciencia Aplicada a la
Ingeniería Técnica Agrícola
Universidad Politécnica de
Madrid - Ciudad Universitaria s/n, Madrid 28040, Spain
Received:
15
January
1999
Accepted:
24
November
1999
We report on experimental and theoretical results on the dynamical
behavior of propagating solitary relaxations in a model system for
earthquake-like dynamics. In the experiments, a continuous elastic
medium is sheared at very slow rate in between two coaxial
cylinders. Solitary propagating relaxations travel at speeds that are
proportional to the driving speed, though 
times faster,
and inversely proportional to the number of solitary relaxations in
the system. We
show that this behavior appears due to the existence of a
characteristic length scale which is the typical displacement of a
surface element in a relaxation.
PACS: 05.45-a – Nonlinear dynamics and nonlinear dynamical systems / 05.65+b – Self-organized systems / 91.30.Bi – Seismic sources (mechanisms, magnitude, moment frequency spectrum)
© EDP Sciences, 2000
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