Colloidal hard spheres: Triumphs, challenges, and mysteries

CP Royall, P Charbonneau, M Dijkstra, J Russo… - Reviews of Modern …, 2024 - APS
The simplicity of hard spheres as a model system is deceptive. Although the particles
interact solely through volume exclusion, that nevertheless suffices for a wealth of static and …

Distinguishing thixotropy from viscoelasticity

M Agarwal, S Sharma, V Shankar, YM Joshi - Journal of Rheology, 2021 - pubs.aip.org
Owing to nonlinear viscoelasticity, materials often show characteristic features that resemble
those of thixotropy. This issue has been debated in the literature over the past several …

On the nature of flow curve and categorization of thixotropic yield stress materials

T Bhattacharyya, AR Jacob, G Petekidis… - Journal of Rheology, 2023 - pubs.aip.org
Thixotropy is a phenomenon related to time dependent change in viscosity in the presence
or absence of flow. The yield stress, on the other hand, represents the minimum value of …

Linear Viscoelasticity of Physically Aging Soft Glassy (Thixotropic) Materials

YM Joshi - Current Opinion in Colloid & Interface Science, 2025 - Elsevier
Soft glassy materials are distinguished by their arrested microstructures and out-of-
equilibrium thermodynamic states. These materials exhibit time dependent evolution of …

Mpemba effect in molecular gases under nonlinear drag

A Santos, A Prados - Physics of Fluids, 2020 - pubs.aip.org
We look into the Mpemba effect—the initially hotter sample cools sooner—in a molecular
gas with nonlinear viscous drag. Specifically, the gas particles interact among them via …

Rheology-informed neural networks (RhINNs) for forward and inverse metamodelling of complex fluids

M Mahmoudabadbozchelou, S Jamali - Scientific reports, 2021 - nature.com
Reliable and accurate prediction of complex fluids' response under flow is of great interest
across many disciplines, from biological systems to virtually all soft materials. The challenge …

Dilatancy in dense suspensions of model hard-sphere-like colloids under shear and extensional flow

RJE Andrade, AR Jacob, FJ Galindo-Rosales… - Journal of …, 2020 - pubs.aip.org
Dense suspensions of model hard-sphere (HS)-like colloids, with different particle sizes, are
examined experimentally near and in the glass state, under shear and extensional rheology …

[HTML][HTML] Transient dynamics of soft particle glasses in startup shear flow. Part I: Microstructure and time scales

F Khabaz, BF Di Dio, M Cloitre, RT Bonnecaze - Journal of Rheology, 2021 - pubs.aip.org
The rheology and microstructure of soft particle glasses during startup flow are studied using
three-dimensional particle dynamics simulations at different particle volume fractions and …

On the thixotropy of mature fine tailings

A Malmir, JH Piette, B Derakhshandeh… - Physics of …, 2023 - pubs.aip.org
The rheological behavior of mature fine tailings (MFTs) is investigated using transient and
steady shear flow fields. The structure breakdown of intact MFT samples is examined by a …

From subaging to hyperaging in structural glasses

LF Elizondo-Aguilera, T Rizzo, T Voigtmann - Physical Review Letters, 2022 - APS
We demonstrate nonequilibrium scaling laws for the aging and equilibration dynamics in
glass formers that emerge from combining a relaxation equation for the static structure with …