Mean-field scenario for the athermal creep dynamics of yield-stress fluids
arXiv:1705.06912 · doi:10.1103/PhysRevLett.120.028004
Abstract
We develop an elasto-plastic description for the transient dynamics prior to steady flow of athermally yielding materials. Our mean-field model not only reproduces the experimentally observed non-linear time dependence of the shear-rate response to an external shear-stress, but also allows for the determination of the different physical processes involved in the onset of the re-acceleration phase after the initial critical slowing down and a distinct well defined fluidization phase. The evidenced power-law dependence of the fluidization time on the distance of the applied to an age dependent static yield stress is not universal but strongly dependent on initial conditions.
8 pages, 4 figures
References in corpus (23)
- Yield Stress Materials in Soft Condensed Matter
- Rheological constitutive equation for model of soft glassy materials
- Ageing and Rheology in Soft Materials
- A kinetic theory of plastic flow in soft glassy materials
- Theory of nonlinear rheology and yielding of dense colloidal suspensions
- A mode-coupling theory for the pasty rheology of soft glassy materials
- Slow flows of yield stress fluids: complex spatio-temporal behaviour within a simple elasto-plastic model
- From transient fluidization processes to Herschel-Bulkley behavior in simple yield stress fluids
- Driving rate dependence of avalanche statistics and shapes at the yielding transition
- Glass Rheology: From mode-coupling theory to a dynamical yield criterion
- Timescales in creep and yielding of attractive gels
- Criteria for shear banding in time-dependent flows of complex fluids
- Creep and Fracture of a Protein Gel under Stress
- Unified Description of Aging and Rate Effects in Yield of Glassy Solids
- Creep and flow of glasses: strain response linked to the spatial distribution of dynamical heterogeneities
- Microstructural rearrangements and their rheological implications in a model Thixotropic Elasto-Visco-Plastic (TEVP) fluid
- Time dependent elastic response to a local shear transformation in amorphous solids
- On the relevance of disorder in athermal amorphous materials under shear
- Spatial cooperativity in microchannel flows of soft jammed materials: A mesoscopic approach
- Onset of flow in a confined colloidal glass under an imposed shear stress
- Probing relevant ingredients in mean-field approaches for the athermal rheology of yield stress materials
- Delayed Yielding in Creep, Time - Stress Superposition and Effective Time Theory for a Soft Glass
- Nontrivial rheological exponents in sheared yield stress fluids
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- Ductile-to-brittle transition and yielding in soft amorphous materials: perspectives and open questions
- Creep in reactive colloidal gels: a nanomechanical study of cement hydrates
- Unified theoretical and experimental view on transient shear banding
- An elasto-plastic approach based on microscopic insights for the steady state and transient dynamics of sheared disordered solids
- Deformation and flow of amorphous solids: An updated review of mesoscale elastoplastic models
- Creep dynamics of athermal amorphous materials: a mesoscopic approach
- Thermally activated flow in models of amorphous solids
- Scaling description of creep flow in amorphous solids
- Elastoviscoplastic rheology and ageing in a simplified soft glassy constitutive model
- Orientational Memory of Active Particles in Multistate Non-Markovian Processes
- Stochastic resetting of a population of random walks with resetting-rate-dependent diffusivity
- Mean field theory of yielding under oscillatory shear
- Athermal creep deformation of ultrastable amorphous solids