Homogenization of fault frictional properties
Homogenization of fault frictional properties
复制标题
断层摩擦特性的均质化
DOI:
10.1093/gji/ggz327
复制
发表时间:
2019
影响因子:
2.8
通讯作者:
Viesca, Robert C
中科院分区:
文献类型:
--
作者:
Ray, Sohom;Viesca, Robert C
The frictional properties of large faults are expected to vary in space. However, fault models often assume that properties are homogeneous, or nearly so. We investigate the conditions under which the details of variations may be neglected and properties homogenized. We do so by examining the behaviour of nonlinear solutions for unstably accelerating fault slip under frictional heterogeneity. We consider a rate- and state-dependent fault friction in which the characteristic wavelength for the property variations is a problem parameter. We find that homogenization is permissible only when that wavelength shows scale separation from an elasto-frictional length scale. However, fault models also often include property transitions that occur over distances comparable to the elasto-frictional length. We show that under such comparable variations, the dynamics of earthquake-nucleating instabilities is controlled by the properties’ spatial distribution.
登录
查看更多内容
影响因子:
5.2
作者:
Bar Sinai, Yohai;Brener, Efim A.;Bouchbinder, Eran
通讯作者:
Bouchbinder, Eran
影响因子:
5.2
作者:
Ke, Chun-Yu;McLaskey, Gregory C.;Kammer, David S.
通讯作者:
Kammer, David S.
DOI:
10.1098/rspa.2016.0254
发表时间:
2016
期刊:
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子:
--
作者:
R. Viesca
通讯作者:
R. Viesca
影响因子:
2.8
作者:
P. Dublanchet
通讯作者:
P. Dublanchet
影响因子:
3.9
作者:
Ide, S;Aochi, H
通讯作者:
Aochi, H