Publication Date:
2017-04-04
Description:
We model the dynamic propagation of a 2-D in-plane
crack obeying to either slip weakening (SW) or rate- and
state-dependent friction laws (R&S). We compare the value
of slip weakening distance (Dc), adopted or estimated from
the traction versus slip curves, with the critical slip distance
measured as the slip at the time of peak slip velocity (Dc').
The adopted friction law and the constitutive parameters
control the slip acceleration as well as the timing and the
amplitude of peak slip velocity. Our simulations with R&S
show that the direct effect of friction and the friction
behavior at high slip rates affect the timing of peak slip
velocity and thus control the ratio Dc'
/Dc. The difference
observed in this study between the Dc values and the
inferred Dc'
can range between few percent up to
50%.
Description:
Published
Description:
L02611
Description:
3.1. Fisica dei terremoti
Description:
JCR Journal
Description:
reserved
Keywords:
Modeling
;
Earthquake dynamics and mechanics
;
Earthquake parameters
;
04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
