Numerical simulation on rock fragmentation by discontinuous water-jet using coupled SPH/FEA method

To investigate the rock fragmentation mechanism and its influence factors under discontinuous water-jet impact, the fluid-structure coupled smoothed particle hydrodynamics (SPH) and finite element analysis (FEA) was used to simulate the rock fragmentation process. A rate-dependent constitutive model was adopted to describe the mechanical behavior of rock, and the shock equation of state was used to simulate the water-jet. The rock fragmentation...