Nonlocal rheology of dense granular flow in annular shear experiments
SOFT MATTER, 14(16), 3040–3048.
TL;DR:
The authors' measurements confirm the prediction that there is a growing lengthscale at a finite value μs, associated with a frictional yield criterion and identify the physical mechanism behind this transition at μs by observing that it corresponds to a drop in the susceptibility to force chain fluctuations.
(via
Semantic Scholar)
Experimental measurements of boundary stresses and flow fields of a quasi-2D granular material under steady shear validate two nonlocal rheological models.