ED 512 - InfoMaths (Informatique et Mathématiques)
Publié le 1 décembre 2025 | Mis à jour le 1 décembre 2025
Controlling Flow-Induced Aggregation in Colloid- Polymer Suspensions, A Critical Tool For Advanced Modern Technological Applications: Modeling of Experimental Data
Soft Glassy Materials (SGMs) are ubiquitous in major industries, i.e., foodstuff, personal care products, oil, to cite only a few.
These soft solids consist of disordered assemblies of subunits such as particles or polymers, whose interaction and volume fraction control their viscoelastic properties. Under external shear, their microstructure is usually broken, which allows these materials to flow like liquids, whereas they behave as soft solids at rest [1]. However, Otsubo et al. reported in a seminal series of work [2,3] that shear can surprisingly lead to forming a permanent percolated network with solid-like behavior, which raises crucial fundamental issues about the physics at play during flow-microstructure interactions.
These soft solids consist of disordered assemblies of subunits such as particles or polymers, whose interaction and volume fraction control their viscoelastic properties. Under external shear, their microstructure is usually broken, which allows these materials to flow like liquids, whereas they behave as soft solids at rest [1]. However, Otsubo et al. reported in a seminal series of work [2,3] that shear can surprisingly lead to forming a permanent percolated network with solid-like behavior, which raises crucial fundamental issues about the physics at play during flow-microstructure interactions.