High-speed ultrasound imaging in dense suspensions reveals impact-activated solidification due to dynamic shear jamming

@inproceedings{Han2016HighspeedUI,
  title={High-speed ultrasound imaging in dense suspensions reveals impact-activated solidification due to dynamic shear jamming},
  author={Endao Han and Ivo R Peters and Heinrich M. Jaeger},
  booktitle={Nature communications},
  year={2016}
}
A remarkable property of dense suspensions is that they can transform from liquid-like at rest to solid-like under sudden impact. Previous work showed that this impact-induced solidification involves rapidly moving jamming fronts; however, details of this process have remained unresolved. Here we use high-speed ultrasound imaging to probe non-invasively how the interior of a dense suspension responds to impact. Measuring the speed of sound we demonstrate that the solidification proceeds without… CONTINUE READING
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