Impact-activated solidification of dense suspensions via dynamic jamming fronts

@article{Waitukaitis2012ImpactactivatedSO,
  title={Impact-activated solidification of dense suspensions via dynamic jamming fronts},
  author={Scott R. Waitukaitis and Heinrich M. Jaeger},
  journal={Nature},
  year={2012},
  volume={487},
  pages={205-209}
}
Although liquids typically flow around intruding objects, a counterintuitive phenomenon occurs in dense suspensions of micrometre-sized particles: they become liquid-like when perturbed lightly, but harden when driven strongly. Rheological experiments have investigated how such thickening arises under shear, and linked it to hydrodynamic interactions or granular dilation. However, neither of these mechanisms alone can explain the ability of suspensions to generate very large, positive normal… CONTINUE READING
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