Disentangling glass and jamming physics in the rheology of soft materials

Abstract

The shear rheology of soft particles systems becomes complex at large density because crowding effects may induce a glass transition for Brownian particles, or a jamming transition for non-Brownian systems. Here we successfully explore the hypothesis that the shear stress contributions from glass and jamming physics are `additive'. We show that the experimental flow curves measured in a large variety of soft materials (colloidal hard spheres, microgel suspensions, emulsions, aqueous foams) as well as numerical flow curves obtained for soft repulsive particles in both thermal and athermal limits are well described by a simple model assuming that glass and jamming rheologies contribute linearly to the shear stress, provided that the relevant scales for time and stress are correctly identified in both sectors. Our analysis confirms that the dynamics of colloidal hard spheres is uniquely controlled by glass physics while aqueous foams are only sensitive to jamming effects. We show that for micron-sized emulsions both contributions are needed to successfully account for the flow curves, which reveal distinct signatures of both phenomena. Finally, for two systems of soft microgel particles we show that the flow curves are representative of the glass transition of colloidal systems, and deduce that microgel particles are not well suited to studying the jamming transition experimentally.

16 pages, 10 figures

References in corpus (10)

• Theoretical perspective on the glass transition and amorphous materials
• Probing the equilibrium dynamics of colloidal hard spheres above the mode-coupling glass transition
• Unified study of glass and jamming rheology in soft particle systems
• In Search of Colloidal Hard Spheres
• The glass transition of dense fluids of hard and compressible spheres
• Microfluidic rheology of soft colloids above and below jamming
• Viscoelasticity and shear flow of concentrated, non-crystallizing colloidal suspensions: Comparison with Mode-Coupling Theory
• Compressing nearly hard sphere fluids increases glass fragility
• Dynamic criticality at the jamming transition
• A microscopic mean-field theory of the jamming transition

Cited by in corpus (51)

• Yield Stress Materials in Soft Condensed Matter
• Relationship between Rheology and Structure of Interpenetrating, Deforming and Compressing Microgels
• The glass transition of soft colloids
• Universal non-Debye scaling in the density of states of amorphous solids
• An introduction to the colloidal glass transition
• Diverging viscosity and soft granular rheology in non-Brownian suspensions
• A direct link between active matter and sheared granular systems
• Numerical detection of the Gardner transition in a mean-field glass former
• Softening and Yielding of Soft Glassy Materials
• Out-of-equilibrium dynamical mean-field equations for the perceptron model
• Thermal fluctuations, mechanical response, and hyperuniformity in jammed solids
• Thinning or thickening? Multiple rheological regimes in dense suspensions of soft particles
• Flow of deformable droplets: discontinuous shear thinning and velocity oscillations
• Discontinuous shear-thickening in Brownian suspensions
• Deformation and flow of amorphous solids: An updated review of mesoscale elastoplastic models
• Linear and nonlinear rheology of dense emulsions: Identifying the glass and jamming regimes
• Out-of-equilibrium dynamical equations of infinite-dimensional particle systems. I. The isotropic case
• Dynamical and structural signatures of the glass transition in emulsions
• Universal relaxation dynamics of sphere packings below jamming
• A computational study of transient shear banding in soft jammed solids
• Glass and Jamming Rheology in Soft Particles Made of PNIPAM and Polyacrylic Acid
• The yielding of amorphous solids at finite temperatures
• Athermal analogue of sheared dense Brownian suspensions
• Slow coarsening in jammed athermal soft particle suspensions
• Elastoviscoplastic rheology and ageing in a simplified soft glassy constitutive model
• Brownian granular flows down heaps
• Relaxation dynamics of non-Brownian spheres below jamming
• Bulk and interfacial stresses in suspensions of soft and hard colloids
• Creeping Avalanches of Brownian Granular Suspensions
• Yield stress in amorphous solids: A mode-coupling theory analysis
• Out-of-equilibrium dynamical equations of infinite-dimensional particle systems. II. The anisotropic case under shear strain
• Interfacial fluid rheology of soft particles
• Shear banding, discontinuous shear thickening, and rheological phase transitions in athermally sheared frictionless disks
• Fluid-Glass-Jamming Rheology of Soft Active Brownian Particles
• Integration through transients approach to the $\mu (\mathcal{I})$ rheology
• Strain-controlled critical slowing down in the rheology of disordered networks
• Fragile-to-Strong Crossover, growing length scales, and dynamic heterogeneity in Wigner Glasses
• Aging or DEAD: origin of the non-monotonic response to weak self-propulsion in active glasses
• Delayed elastic contributions to the viscoelastic response of foams
• Rheology of granular liquids in extensional flows: Beyond the $\mu (\mathcal{I})$-law
• A Free Energy Model for the Plateau Shear Modulus in Thermosensitive Microgel Suspensions
• Rheology finds distinct glass and jamming transitions in emulsions
• Active Jamming at Criticality
• Rheological response of a glass-forming liquid having large bidispersity
• Mobility-induced kinetic effects in multicomponent mixtures
• Scaling the glassy dynamics of active particles: Tunable fragility and reentrance
• Comment on "Constant stress and pressure rheology of colloidal suspensions"
• Transition from granular to Brownian suspension : an inclined plane experiment
• Lindemann unjamming of emulsions
• Stirring supercooled colloidal liquids at the particle scale
• Dynamic susceptibilities in dense soft athermal spheres under a finite-rate shear