Fluid-fault interactions result in many two-way coupled processes across a range of length scales, from the micron scale shear zone to kilometer slip patch. The separation and complex coupling render fluid-fault challenging simulate, yet they are key for our understanding experimental data induced seismicity. Here we present spectral boundary-integral solutions in-plane interface sliding openin...

Triaxial experiments show that samples of fault gouge deform distinctly differently than those from the adjacent fault damage zone (e.g., Chester and Logan, 1986). Rock samples in the damage zone follow a characteristic elastic-brittle behavior, whereas fault gouge readily compacts and deforms in a more ductile manner. In order to explain the apparent weakness of large plate bounding faults suc...

Dilatancy is of importance for understanding the micromechanical behavior materials such as cemented sand, mortar joints, and interfaces masonry-like structures. Rough interface contacts are able to result in dilatancy lead an increase material’s volume. However, far authors’ knowledge very few works present regarding phenomenon composite materials. The work aims at investigating effect on with...

[1] The mechanics of slow slip events (SSE) in subduction zones remain unresolved. We suggest that SSE nucleate in areas of unstable friction under drained conditions, but as slip accelerates dilatancy reduces pore pressure p quenching instability. Competition between dilatant strengthening and thermal pressurization may control whether slip is slow or fast. We model SSE with 2‐D elasticity, ra...

Failure and fault slip in crystalline rocks is associated with dilation. When pore fluids are present drainage insufficient, dilation leads to pressure drops, which turn lead strengthening of the material. We conducted laboratory rock fracture experiments direct in-situ fluid measurements demonstrate that dynamic rupture propagation can be stabilised (i.e., become quasi-static) by such a dilata...