Modeling of Stick‐Slip Behavior in Sheared Granular Fault Gouge Using the Combined Finite‐Discrete Element Method

@article{Gao2018ModelingOS,
  title={Modeling of Stick‐Slip Behavior in Sheared Granular Fault Gouge Using the Combined Finite‐Discrete Element Method},
  author={Ke Gao and Bryan Euser and Esteban Rougier and Robert A. Guyer and Zhou Lei and Earl E. Knight and J Jan Carmeliet and Paul Allan Johnson},
  journal={Journal of Geophysical Research: Solid Earth},
  year={2018},
  volume={123},
  pages={5774 - 5792}
}
Sheared granular layers undergoing stick‐slip behavior are broadly employed to study the physics and dynamics of earthquakes. Here a two‐dimensional implementation of the combined finite‐discrete element method (FDEM), which merges the finite element method (FEM) and the discrete element method (DEM), is used to explicitly simulate a sheared granular fault system including both gouge and plate, and to investigate the influence of different normal loads on seismic moment, macroscopic friction… 

Compaction of the Groningen Gas Reservoir Sandstone: Discrete Element Modeling Using Microphysically Based Grain‐Scale Interaction Laws

Reservoir compaction, surface subsidence, and induced seismicity are often associated with prolonged hydrocarbon production. Recent experiments conducted on the Groningen gas field's Slochteren

DEM Analyses of Cemented Granular Fault Gouges at the Onset of Seismic Sliding: Peak Strength, Development of Shear Zones and Kinematics

Fault zones usually present a granular gouge, coming from the wear material of previous slips. This layer contributes to friction stability and plays a key role in the way elastic energy is released

Numerical analysis of flyer plate experiments in granite via the combined finite–discrete element method

In this study, the combined finite–discrete element method (FDEM), which merges the finite element-based analysis of continua with discrete element-based transient dynamics, contact detection, and

Macroscale friction of granular soils under monotonic and cyclic loading based upon micromechanical determination of dissipated energy

Macroscopic frictional behavior of granular materials is of great importance for studying several complex problems associated with fault slip and landslides. The main objective of this study is to

Ensemble Shear Strength, Stability, and Permeability of Mixed Mineralogy Fault Gouge Recovered From 3D Granular Models

We conduct numerical shear experiments on mixtures of quartz and talc gouge using a three‐dimensional (3D) distinct element model. A modified slip‐weakening constitutive law is applied at contacts.

Fourier amplitude sensitivity test applied to dynamic combined finite‐discrete element methods–based simulations

Fracture propagation plays a key role for a number of applications of interest to the scientific community, from dynamic fracture processes like spallation and fragmentation in metals to failure of

Using a coupled FEM-DEM method to study the nonlinear phenomena of third-body behavior

Third-body lubrication is widely applied in the design of mechanical frictional pair, but the relation between the lubrication performance and third-body rheology is hardly focused on. In this paper,

References

SHOWING 1-10 OF 92 REFERENCES

On the role of fluids in stick‐slip dynamics of saturated granular fault gouge using a coupled computational fluid dynamics‐discrete element approach

The presence of fault gouge has considerable influence on slip properties of tectonic faults and the physics of earthquake rupture. The presence of fluids within faults also plays a significant role

A hybrid approach for modeling of breakable granular materials using combined finite-discrete element method

It is well known that particle breakage plays a critical role in the mechanical behavior of granular materials and has been a topic subject to intensive studies. This paper presents a three

Meso-mechanical analysis of deformation characteristics for dynamically triggered slip in a granular medium

The deformation characteristics of a sheared granular layer during stick–slip are studied from a meso-mechanical viewpoint, both in the absence and in the presence of externally applied vibration.

Discrete element modeling of triggered slip in faults with granular gouge: application to dynamic earthquake triggering

Recent seismological observations based on new, more sensitive instrumentation show that seismic waves radiated from large earthquakes can trigger other earthquakes globally. This phenomenon is

On the micromechanics of slip events in sheared, fluid-saturated fault gouge

We used a three-dimensional discrete element method coupled with computational fluid dynamics to study the poromechanical properties of dry and fluid saturated granular fault gouge. The granular

Three-dimensional discrete element modeling of triggered slip in sheared granular media.

TLDR
This paper reports results of a three-dimensional discrete element method method modeling investigation of the role of boundary vibration in perturbing stick-slip dynamics in a sheared granular layer, and studies the effects of triggering beyond the vibration interval.

Micromechanics and statistics of slipping events in a granular seismic fault model

The stick-slip is investigated in a seismic fault model made of a confined granular system under shear stress via three dimensional Molecular Dynamics simulations. We study the statistics of slipping

Evolution of shear fabric in granular fault gouge from stable sliding to stick slip and implications for fault slip mode

Laboratory and theoretical studies provide insight into the mechanisms that control earthquake nucleation, when fault slip velocity is slow (<0.001 cm/s), and dynamic rupture when fault slip rates

Frictional behavior and constitutive modeling of simulated fault gouge

This paper presents an investigation of the factional properties and stability of frictional sliding for simulated fault gouge. In these experiments we sheared gouge layers (quartz sand) under
...