A phase‐field model for quasi‐dynamic nucleation, growth, and propagation of rate‐and‐state faults
A phase‐field model for quasi‐dynamic nucleation, growth, and propagation of rate‐and‐state faults
复制标题
速率和状态断层的准动态成核、生长和传播的相场模型
DOI:
10.1002/nag.3465
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发表时间:
2022
影响因子:
4
通讯作者:
Choo, Jinhyun
中科院分区:
文献类型:
--
作者:
Fei, Fan;Mia, Md Shumon;Elbanna, Ahmed E.;Choo, Jinhyun
Despite its critical role in the study of earthquake processes, numerical simulation of the entire stages of fault rupture remains a formidable task. The main challenges in simulating a fault rupture process include the complex evolution of fault geometry, frictional contact, and off‐fault damage over a wide range of spatial and temporal scales. Here, we develop a phase‐field model for quasi‐dynamic fault nucleation, growth, and propagation, which features two standout advantages: (i) it does not require any sophisticated algorithms to represent fault geometry and its evolution; and (ii) it allows for modeling fault nucleation, propagation, and off‐fault damage processes with a single formulation. Built on a recently developed phase‐field framework for shear fractures with frictional contact, the proposed formulation incorporates rate‐ and state‐dependent friction, radiation damping, and their impacts on fault mechanics and off‐fault damage. We show that the numerical results of the phase‐field model are consistent with those obtained from well‐verified approaches that model the fault as a surface of discontinuity, without suffering from the mesh convergence issue in the existing continuous approaches to fault rupture (e.g., the stress glut method). Further, through numerical examples of fault propagation in various settings, we demonstrate that the phase‐field approach may open new opportunities for investigating complex earthquake processes that have remained overly challenging for the existing numerical methods.
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DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
E. Coon;B. E. Shaw;M. Spiegelman
通讯作者:
M. Spiegelman
DOI:
10.1098/rsta.2020.0130
发表时间:
2021-05-03
期刊:
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
影响因子:
--
作者:
Gabriel AA;Li D;Chiocchetti S;Tavelli M;Peshkov I;Romenski E;Dumbser M
通讯作者:
Dumbser M
影响因子:
2.8
作者:
Setare Hajaroalsvadi;A. Elbanna
通讯作者:
A. Elbanna
影响因子:
5.3
作者:
Erickson, Brittany A.;Dunham, Eric M.;Khosravifar, Arash
通讯作者:
Khosravifar, Arash
DOI:
10.1073/pnas.93.9.3811
发表时间:
1996-04-30
影响因子:
11.1
作者:
Rice, JR;Ben-Zion, Y
通讯作者:
Ben-Zion, Y