Onset of flow in a confined colloidal glass under an imposed shear stress
arXiv:1302.0910 · doi:10.1103/PhysRevE.88.040301
Abstract
A confined colloidal glass, under the imposition of a uniform shear stress, is investigated using numerical simulations. Both at macro- and microscales, the consequent dynamics during the onset of flow is studied. When the imposed stress is gradually decreased, the time scale for the onset of steady flow diverges, associated with long-lived spatial heterogeneities. Near this yield-stress regime, persistent creep in the form of shear-banded structures is observed.
5 pages, 5 figures
References in corpus (8)
- Strain localization and percolation of stable structure in amorphous solids
- Phenomenology and physical origin of shear-localization and shear-banding in complex fluids
- Plastic Response of a 2D Lennard-Jones amorphous solid: Detailed analysis of the local rearrangements at very slow strain-rate
- Dynamic heterogeneity in amorphous materials
- Criteria for shear banding in time-dependent flows of complex fluids
- From Equilibrium to Steady State: The Transient Dynamics of Colloidal Liquids under Shear
- Inhomogeneous shear flows in soft jammed materials with tunable attractive forces
- Fluctuations and scaling in creep deformation
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- Creep and flow of glasses: strain response linked to the spatial distribution of dynamical heterogeneities
- Power-law creep and residual stresses in a carbopol microgel
- Triggers and signatures of shear banding in steady and time-dependent flows
- Heterogeneous dynamics during yielding of glasses: effect of aging
- An elasto-plastic approach based on microscopic insights for the steady state and transient dynamics of sheared disordered solids
- Do thermodynamically stable rigid solids exist?
- Deformation and flow of amorphous solids: An updated review of mesoscale elastoplastic models
- Mean-field scenario for the athermal creep dynamics of yield-stress fluids
- Shear banding in large amplitude oscillatory shear (LAOStrain and LAOStress) of soft glassy materials
- Creep dynamics of athermal amorphous materials: a mesoscopic approach
- Scaling description of creep flow in amorphous solids
- Mechanical fluctuations suppress the threshold of soft-glassy solids : the secular drift scenario
- Elastoviscoplastic rheology and ageing in a simplified soft glassy constitutive model
- Flow heterogeneities in supercooled liquids and glasses under shear
- Poiseuille flow of soft glasses in narrow channels: From quiescence to steady state
- Depinning and heterogeneous dynamics of colloidal crystal layers under shear flow
- Shear band relaxation in a deformed bulk metallic glass
- Athermal creep deformation of ultrastable amorphous solids
- Onset of transient shear banding in viscoelastic shear start-up flows: Implications from linearized dynamics