Steady-state solutions of rupture propagation in an earthquake simulator governed by rate and state dependent friction
Steady-state solutions of rupture propagation in an earthquake simulator governed by rate and state dependent friction
复制标题
由速率和状态相关摩擦控制的地震模拟器中破裂传播的稳态解
DOI:
10.1140/epjst/e2010-01344-6
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发表时间:
--
期刊:
影响因子:
--
通讯作者:
Brietzke
中科院分区:
文献类型:
--
作者:
Zöller;Hainzl;Holschneider;Brietzke
Earthquake simulators become increasingly important with respect to seismic hazard assessment. It is, therefore, a crucial question whether the imposed simplifications, e.g. reducing fully dynamic to quasi-dynamic rupture propagation, may lead to unrealistic results. In the present study, we focus on the role of rupture velocityvrin an earthquake simulator governed by rate-and-state dependent friction as proposed by [8]. In particular, we investigate the range of possible values ofvrwithin the model. As an end-member scenario, we consider the existence of a steady-state solution of a one-dimensional rupture front propagating withvron an idealized two-dimensional fault of infinite dimension discretized into uniform cells. We find that, in principle, values ofvrbetween 0 and ∞ are possible depending on the values of slip speed δ0and pre-stress τ0ahead of the rupture front. In this view, values of δ0close to the slip speed during an earthquake δEQlead to small values of the time-to-failure and can thus generate ruptures with unrealistic high values ofvr, if the model is close to the steady-state conditions. These results are useful to provide constraints for the parameter space of a reasonable earthquake simulator.
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影响因子:
3
作者:
G. Zöller;S. Hainzl;M. Holschneider
通讯作者:
M. Holschneider
影响因子:
--
作者:
S. Hainzl;G. Zöller;Rongjiang Wang
通讯作者:
S. Hainzl;G. Zöller;Rongjiang Wang
DOI:
10.1029/gm024
发表时间:
1981
期刊:
Earth, Planets and Space
影响因子:
--
作者:
N. Carter;M. Friedman;J. Logan;D. Stearns
通讯作者:
D. Stearns
影响因子:
3
作者:
Y. Okada
通讯作者:
Y. Okada
影响因子:
3.9
作者:
BEN-ZION, Y;RICE, JR
通讯作者:
RICE, JR