Session H13: Focus Session: Jamming Theory and Experiment I
8:00 AM–11:00 AM, Tuesday, March 22, 2011
Room: D225/226
Sponsoring Unit:
GSNP
Chair: Mark Shattuck, City College of New York
Abstract ID: BAPS.2011.MAR.H13.4
Abstract: H13.00004 : Critical Scaling of Shearing Rheology at the Jamming Transition of Soft Core Frictionless Disks
9:00 AM–9:12 AM
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Abstract 
Authors:
Stephen Teitel
(University of Rochester)
Peter Olsson
(Ume{\aa} University)
We perform numerical simulations to determine the shear stress and pressure of steady-state shear flow in a soft-disk model in two dimensions at zero temperature in the vicinity of the jamming transition $\phi_J$. We use critical point scaling analyses to determine the critical behavior at jamming, and we find that it is crucial to include {\it corrections to scaling} for a reliable analysis. We find that the relative size of these corrections are much smaller for pressure than for shear stress. We furthermore find a superlinear behavior for pressure and shear stress above $\phi_J$, both from the scaling analysis and from a direct analysis of pressure data extrapolated to the limit of vanishing shear rate.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.H13.4