26 citations · 57 across the 6 of their papers we have counts for
12 papers · 1 filter
Tuning local microstructure of colloidal gels by ultrasound-activated deformable inclusions
Brice Saint-Michel, George Petekidis, Valeria Garbin
Colloidal gels possess a memory of previous shear events, both steady and oscillatory. This memory, embedded in the microstructure, affects the mechanical response of the gel, and…
Interplay between wall slip and shear banding in a thixotropic yield stress fluid
Michela Geri, Brice Saint-Michel, Thibaut Divoux +2
We study the local dynamics of a thixotropic yield stress fluid that shows a pronounced non-monotonic flow curve. This mechanically unstable behavior is generally not observable fr…
Acoustic Bubble Dynamics in a Yield-Stress Fluids
Brice Saint-Michel, Valeria Garbin
Yield-stress fluids naturally trap small bubbles when their buoyancy applies an insufficient stress to induce local yielding of the material. Under acoustic excitation, trapped bub…
X Radiography of Viscous Resuspension
Brice Saint-Michel, Sébastien Manneville, Steven Meeker +2
We use X-ray imaging to study viscous resuspension. In a Taylor-Couette geometry, we shear an initially settled layer of spherical glass particles immersed in a Newtonian fluid and…
Oscillations of small bubbles and medium yielding in elastoviscoplastic fluids
Marco De Corato, Brice Saint-Michel, George Makrigiorgios +3
We investigate the radial oscillations of small gas bubbles trapped in yield-stress fluid and driven by an acoustic pressure field. We model the rheological behavior of the yield-s…
Irreversible hardening of a colloidal gel under shear: the smart response of natural rubber latex gels
Guilherme de Oliveira Reis, Thomas Gibaud, Brice Saint-Michel +6
Natural rubber is obtained by processing natural rubber latex, a liquid colloidal suspension that rapidly gels after exudation from the tree. We prepared such gels by acidification…