Unifying impacts in granular matter from quicksand to cornstarch
arXiv:1603.07013 · doi:10.1103/PhysRevLett.117.098003
Abstract
A sharp transition between liquefaction and transient solidification is observed during impact on a granular suspension depending on the initial packing fraction. We demonstrate, via high-speed pressure measurements and a two-phase modeling, that this transition is controlled by a coupling between the granular pile dilatancy and the interstitial fluid pressure generated by the impact. Our results provide a generic mechanism for explaining the wide variety of impact responses in particulate media, from dry quicksand in powders to impact-hardening in shear-thickening suspensions like cornstarch.
e.g. 11 pages, 4 figures, 3 supplemetal figures, one supplemental table
References in corpus (5)
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Cited by in corpus (13)
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- System-spanning dynamically jammed region in response to impact of cornstarch and water suspensions
- Granular Response to Impact: Topology of the Force Networks
- The Soft Landing Problem: Minimizing Energy Loss by a Legged Robot Impacting Yielding Terrain
- Power law scaling of early-stage forces during granular impact
- Transient flows and migration in granular suspensions: key role of Reynolds-like dilatancy
- Deformation upon impact of a concentrated suspension drop
- Lasting effects of discontinuous shear thickening in cornstarch suspensions upon flow cessation
- Bouncing of a projectile impacting a dense potato-starch suspension layer
- Viscous-like forces control the impact response of shear-thickening dense suspensions
- Characterizing the surface texture of a dense suspension undergoing dynamic jamming
- Boundary compliance selects heterogeneous dynamics in shear-thickening suspensions
- Collision of Dynamic Jamming Fronts in a Dense Suspension