Unifying Impacts in Granular Matter from Quicksand to Cornstarch - Archive ouverte HAL Access content directly
Journal Articles Physical Review Letters Year : 2016

Unifying Impacts in Granular Matter from Quicksand to Cornstarch

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.
Fichier principal
Vignette du fichier
Jerome_PRL2016.pdf (687.93 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

hal-01431977 , version 1 (11-01-2017)

Identifiers

Cite

J. John Soundar Jerome, Nicolas Vandenberghe, Yoël Forterre. Unifying Impacts in Granular Matter from Quicksand to Cornstarch. Physical Review Letters, 2016, 117 (9), ⟨10.1103/PhysRevLett.117.098003⟩. ⟨hal-01431977⟩
155 View
308 Download

Altmetric

Share

Gmail Facebook X LinkedIn More