From particles in steady state shear bands via micro-macro to macroscopic rheology laws

Particulate systems and granular matter are discrete systems made of many particles; they display interesting dynamic or static, fluid- or solid-like states, respectively, or both together. The challenge of bridging the gap between the particulate, microscopic picture towards their continuum description (via the so-called micro-macro transition) is one of today’s challenges of modern research. This short paper gives a brief overview of recent progress and some new insights about local granular flow rules for soft particles.