Analyse de la rupture dynamique du béton par un modèle discret

ABSTRACT This paper deals with the simulation of impacts with the discrete element method. It shows a discrete model built up with polygonal rigid particles, which are linked by brittle beams. Two stochastic thresholds, for the tension and for the rotation of the beams, are implemented in the model. The contact, the algorithms for static and dynamic analyses, and the methodology for parameter identification are detailed. Finally, some study cases show this discrete element model is a good approach to simulate intermediate strain impacts with different crack patterns, depending on the load speed.