... such as the initial stress and unloading velocity were found to influence the fault-slip under changing stress conditions (Sainoki and Mitri 2014, Wu and Zhao 2014, Wu et al. 2017). Despite the importance of the unloading normal stress condition, conventional direct shear studies are usually conducted under constant...

..., the computational cost of MD is too expensive when directly applied to most rock dynamics problems. As a result, researchers compromise the grain scale to explore the mechanism of rock dynamic failure by using simplified versions of MD such as the Lattice Spring Model (LSM) (Zhao et al. 2014, Li et al. 2020, Zhou...

... across multiple parallel linear joints. Zhu & Zhao (2013) used the virtual wave source method to study the oblique incident case, and for the first time used mathematical expressions to derive the superposition results of P and S waves. Li et al. (2014) used thin-layer interface model to analyse wave...

... subdiscipline rock mechanic geology reservoir geomechanics dynamic compressive strength strength criterion wellbore design reservoir characterization strain rate point load test numerical approach point load test yi-feng chen zhao mohr-coulomb strength criterion geologist wellbore integrity...

..., the corresponding transmission and reflection coefficients are obtained. Parametric studies are carried out to investigate the influence of joint stiffness, the frequency of incident wave and the position of monitoring point on the transmission and reflection coefficients. Zhao rock joint jointed rock mass...

... is theoretically and practically meaningful. fracture thickness single fracture cohesive fracture model rock mass Reservoir Characterization Zhao incident wave transmission bar wave propagation hydraulic fracturing Simulation p-wave propagation transmission wave non-welded fracture Upstream...

... and saturated conditions. reservoir geomechanics relation normal stress specimen wellbore integrity dynamic property water content SHPB test Wellbore Design Zhao rock joint closure stiffness JMC Rock Mech Reservoir Characterization Upstream Oil & Gas Thickness incident specific...

... reservoir geomechanics normal stress implication shear stress frictional slip Reservoir Characterization Zhao discontinuity fault instability gouge degradation Upstream Oil & Gas rock discontinuity excavation stress drop gouge material gouge contact incident wave reduction...

... Upstream Oil & Gas particle wave propagation particle-based numerical manifold method Microstructure Reservoir Characterization Rock mechanics time-history result stress WAVE PROPAGATION Validation study numerical manifold method Zhao international journal rock cavern manifold...