Effect of adhesive interaction on strain stiffening and dissipation in granular gels undergoing yielding

Abstract

Stress induced yielding/fluidization in disordered solids, characterized by irreversibility and enhanced dissipation, is important for a wide range of industrial and geological processes. Although, such phenomena in thermal systems have been extensively studied, they remain poorly understood for granular solids. Here, using oscillatory shear rheology and in-situ optical imaging, we study energy dissipation in a dense granular suspension of adhesive particles that forms yield stress solids far below the isotropic jamming point obtained in the limit of hard-sphere repulsion. We find interesting non-linear flow regimes including intra-cycle strain stiffening and plasticity that strongly depend on the applied strain amplitude (${\gamma }_0$) and particle volume fraction ($\varphi$). We demonstrate that such nonlinearity over the entire parameter range can be effectively captured by a dimensionless variable termed as the normalized energy dissipation ($E_N$). Furthermore, in-situ optical imaging reveals irreversible particle rearrangements correlating with the spatiotemporal fluctuations in local velocity, the nature of which strikingly varies across the yielding transition. By directly measuring the critical jamming packing fractions using particle settling experiments, we propose a detailed phase diagram that unravels the role of inter-particle interactions in controlling the flow properties of the system for a wide range of ${\gamma }_0$ and $\varphi$ values.

arXiv commentS.I. Movies can be downloaded from https://drive.google.com/drive/folders/14G5az0kqWD1sjZ4Q0dxvEb91Y7FUEIRt?usp=sharing

References in corpus (42)

• Nonlinear Elasticity in Biological Gels
• Yield Stress Materials in Soft Condensed Matter
• Amorphous Systems in Athermal, Quasistatic Shear
• Shear thickening in concentrated suspensions: phenomenology, mechanisms, and relations to jamming
• Discontinuous shear thickening without inertia in dense non-Brownian suspensions
• Deformation and Failure of Amorphous Solidlike Materials
• Scaling description of the yielding transition in soft amorphous solids at zero temperature
• Shear thickening of cornstarch suspensions as a re-entrant jamming transition
• A unified description of the rheology of hard-particle suspensions
• Microscopic mechanism for the shear-thickening of non-Brownian suspensions
• Predicting plasticity in disordered solids from structural indicators
• Yielding and flow in adhesive and non-adhesive concentrated emulsions
• The yielding transition in amorphous solids under oscillatory shear deformation
• Statistical Physics of the Yielding Transition in Amorphous Solids
• Roughness-dependent tribology effects on discontinuous shear thickening
• Stress localization, stiffening and yielding in a model colloidal gel
• Shear thickening and jamming of dense suspensions: the "roll" of friction
• Jamming, Yielding and Rheology of Weakly Vibrated Granular Media
• Yield stress and shear-banding in granular suspensions
• Timescales in creep and yielding of attractive gels
• Interparticle hydrogen bonding can elicit shear jamming in dense suspensions
• A microscopic view of the yielding transition in concentrated emulsions
• Glass stability changes the nature of yielding under oscillatory shear
• Yielding and microstructure in a 2D jammed material under shear deformation
• Formation and growth of shear bands in glasses: existence of an underlying directed percolation transition
• A constraint-based approach to granular dispersion rheology
• Mechanical Yield in Amorphous Solids: a First-Order Phase Transition
• Ductile and brittle yielding in thermal and athermal amorphous materials
• Inhomogeneous shear flows in soft jammed materials with tunable attractive forces
• Impact of attractive interactions on the rheology of dense athermal particles
• Shear jamming and fragility in dense suspensions
• Direct observation of percolation in the yielding transition of colloidal glasses
• Sticky Matter: Jamming and rigid cluster statistics with attractive particle interactions
• The role of friction in the yielding of adhesive non-Brownian suspensions
• Brittle yielding of amorphous solids at finite shear rates
• Strand plasticity governs fatigue in colloidal gels
• An elasto-plastic approach based on microscopic insights for the steady state and transient dynamics of sheared disordered solids
• Turning a yield-stress calcite suspension into a shear-thickening one by tuning inter-particle friction
• Models for the yielding behaviour of amorphous solids
• Yielding, Rigidity, and Tensile Stress in Sheared Columns of Hexapod Granules
• Emergence and persistence of flow inhomogeneities in the yielding and fluidization of dense soft solids
• Athermal rheology of weakly attractive soft particles