Flow-Arrest Transitions in Frictional Granular Matter.

  title={Flow-Arrest Transitions in Frictional Granular Matter.},
  author={Ishan Srivastava and Leonardo E. Silbert and Gary S. Grest and Jeremy B. Lechman},
  journal={Physical review letters},
  volume={122 4},
The transition between shear-flowing and shear-arrested states of frictional granular matter is studied using constant-stress discrete element simulations. By subjecting a dilute system of frictional grains to a constant external shear stress and pressure, friction-dependent critical shear stress and density are clearly identified with both exhibiting a crossover between low and high friction. The critical shear stress bifurcates two nonequilibrium steady states: (i) steady state shear flow… 
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