In this paper, we investigate the efficiency of a numerical model including rolling resistance for considering dynamical impact loading problems. For this purpose, a discrete element method is considered in a three dimensional context, and the granular assembly is composed by non-cohesive poly-disperse spherical particles. First, triaxial test simulations were conducted for model calibration purpose. Second, the impact modeling of a projectile falling onto a granular layer was conducted using the calibrated model. Particular attention is placed on the influence of the rolling resistance on the system response in both static and dynamic cases. The results indicate that the contact law is acceptable in modeling both static and dynamic cases, besides it has benefits of introducing rolling resistance due to the consideration of the shape of the particles.