Jamming transitions in a schematic model of suspension rheology
arXiv:cond-mat/0210321 · doi:10.1209/epl/i2003-00465-1
Abstract
We study the steady-state response to applied stress in a simple scalar model of sheared colloids. Our model is based on a schematic (F2) model of the glass transition, with a memory term that depends on both stress and shear rate. For suitable parameters, we find transitions from a fluid to a nonergodic, jammed state, showing zero flow rate in an interval of applied stress. Although the jammed state is a glass, we predict that jamming transitions have an analytical structure distinct from that of the conventional mode coupling glass transition. The static jamming transition we discuss is also distinct from hydrodynamic shear thickening.
7 pages; 3 figures; improved version with added references. Accepted for publication in Europhysics Letters
References in corpus (4)
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- Dilatancy in dense suspensions of model hard-sphere-like colloids under shear and extensional flow
- Yield-stress transition in suspensions of deformable droplets
- Shear Thickening in Concentrated Soft Sphere Colloidal Suspensions: A Shear Induced Phase Transition