ROCK IMPACT MODELLING USING FEM/DEM

The accurate simulation of rock impact physics is a pivotal aspect of modeling rockfall phenomena. In the current study we present the implementation of a new dissipative contact interaction algorithm in the combined finite discrete-element method (FEM/DEM) Y-code. The numerical results show how the energy loss process during impact can be reproduced and different coefficients of restitution obtained. Finally, the effect of fracturing is analyzed.