234 citations · 289 across the 3 of their papers we have counts for
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cond-mat.soft2007★ 234 cited
Scaling and dynamics of sphere and disk impact into granular media
Daniel I Goldman, Paul B. Umbanhowar
Direct measurements of the acceleration of spheres and disks impacting granular media reveal simple power law scalings along with complex dynamics which bear the signatures of both…
cond-mat.soft2007★ 55 cited
MR Imaging of Reynolds Dilatancy in the Bulk of Smooth Granular Flows
Ken Sakaie, Denis Fenistein, Timothy J. Carroll +2
Dense granular matter has to expand in order to flow, a phenomenon known as dilatancy. Here we perform, by means of Magnetic Resonance Imaging, direct measurements of the evolution…
cond-mat.soft2004
Force Dynamics in Weakly Vibrated Granular Packings
Paul Umbanhowar, Martin van Hecke
The oscillatory force F_b^ac on the bottom of a rigid, vertically vibrated, grain filled column, reveals rich granular dynamics, even when the peak acceleration of the vibrations i…