3 papers
math.NA2020
Elastic wave propagation in anisotropic solids using energy-stable finite differences with weakly enforced boundary and interface conditions
Martin Almquist, Eric M. Dunham
Summation-by-parts (SBP) finite difference methods have several desirable properties for second-order wave equations. They combine the computational efficiency of narrow-stencil fi…
physics.geo-ph2020
Spring-Slider and Finite Element Modeling of Microseismic Events and Fault Slip during Hydraulic Fracturing
Ali Kashefi, Eric M. Dunham, Benjamin Grossman-Ponemon +1
Hydraulic fracturing increases reservoir permeability by opening fractures and triggering slip on natural fractures and faults. While seismic slip of small faults or fault patches…
physics.geo-ph2020
Fault Valving and Pore Pressure Evolution in Simulations of Earthquake Sequences and Aseismic Slip
Weiqiang Zhu, Kali L. Allison, Eric M. Dunham +1
Fault-zone fluids control effective normal stress and fault strength. While most earthquake models assume a fixed pore fluid pressure distribution, geologists have documented fault…