Stirred bead mills used in industry allow to split up particules in suspension by
agitating a milling medium. The multiple impacts may damage beads and thus reduce the
stirred milling process efficiency. A discrete numerical approach including simple fluid
effects is proposed and carried out in this paper to model and study finely the damage
phenomenon. The simulation data allow to identify internal variables of the milling medium
and to localize high energy zones. The order of magnitude of contact forces including
fluid contribution will enhance the bead wear law.