Discrete complex system modeling: the role of granular mechanics in predicting failure and instability from the grain scale to the structural scale

Abstract

In this talk, we will present collaborative work we have done to model the behavior of discrete complex systems across different scales and applications. We will start with work on grain breakage where discrete models and advanced experiments can shed light into hitherto obscure mechanisms controlling particle failure. we will then present work to understand ant-tunneling and the mechanisms that the natural world seems to utilize to minimize instability. Finally, we will show an example of collaborative work between computational and experimental models to tune particle shape in order to obtain structural behavior that maximizes bending stiffness for applications such as impact protection. A common theme will be the synergistic effect of collaboration, as well as the amplifying effect of experimentation and modeling in complex systems.