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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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18 papers · 2 filters
Transparent Experiments: Releasing Data from Mechanical Tests on Three Dimensional Hydrogel Sphere Packings
Jonathan Barés, Nicolas Brodu, Hu Zheng +1
We describe here experiments on the mechanics of hydrogel particle packings from the Behringer lab, performed between 2012 and 2015. These experiments quantify the evolution of all…
Coarsening Dynamics in the Vicsek Model of Active Matter
Nisha Katyal, Supravat Dey, Dibyendu Das +1
We study the flocking model introduced by Vicsek in the "coarsening" regime. At standard self-propulsion speeds, we find two distinct growth laws for the coupled density and veloci…
Low-frequency vibrations of jammed packings in large spatial dimensions
Masanari Shimada, Hideyuki Mizuno, Ludovic Berthier +1
Amorphous packings prepared in the vicinity of the jamming transition play a central role in theoretical studies of the vibrational spectrum of glasses. Two mean-field theories pre…
Microscopic precursors of failure in soft matter
Luca Cipelletti, Kirsten Martens, Laurence Ramos
The mechanical properties of soft matter are of great importance in countless applications, in addition of being an active field of academic research. Given the relative ease with…
Characterizing the mesh size of polymer solutions via the pore size distribution
Valerio Sorichetti, Virginie Hugouvieux, Walter Kob
In order to characterize the geometrical mesh size , we simulate a solution of coarse-grained polymers with densities ranging from the dilute to the concentrated regime and for…
Phase separation dynamics of gluten protein mixtures
A. Banc, J. Pincemaille, S. Costanzo +5
We investigate by time-resolved Synchrotron ultra-small X-ray scattering the dynamics of liquid-liquid phase-separation (LLPS) of gluten protein suspensions following a temperature…
Nature of excitations and defects in structural glasses
Camille Scalliet, Ludovic Berthier, Francesco Zamponi
The nature of defects in amorphous materials, analogous to vacancies and dislocations in crystals, remains elusive. Here we explore their nature in a three-dimensional microscopic…
Universal relaxation dynamics of sphere packings below jamming
Atsushi Ikeda, Takeshi Kawasaki, Ludovic Berthier +2
We show that non-Brownian suspensions of repulsive spheres below jamming display a slow relaxational dynamics with a characteristic time scale that diverges at jamming. This slow t…
Shear jammed, fragile, and steady states in homogeneously strained granular materials
Yiqiu Zhao, Jonathan Barés, Hu Zheng +2
We study the jamming phase diagram of sheared granular material using a novel Couette shear set-up with multi-ring bottom. The set-up uses small basal friction forces to apply a vo…
Soft grain compression: beyond the jamming point
Thi-Lo Vu, Jonathan Barés
We present the experimental studies of highly strained soft bidisperse granular systems made of hyperelastic and plastic particles. We explore the behavior of granular matter deep…
Front-mediated melting of ultrastable glasses
Elijah Flenner, Ludovic Berthier, Patrick Charbonneau +1
Ultrastable vapor-deposited glasses display uncommon material properties. Most remarkably, upon heating they are believed to melt via a liquid front that originates at the free sur…
Enlightening force chains: a review of photoelasticimetry in granular matter
Aghil Abed Zadeh, Jonathan Barés, Theodore A. Brzinski +10
A photoelastic material will reveal its internal stresses when observed through polarizing filters. This eye-catching property has enlightened our understanding of granular materia…
Perspective: Nonequilibrium glassy dynamics in dense systems of active particles
Ludovic Berthier, Elijah Flenner, Grzegorz Szamel
Despite the diversity of materials designated as active matter, virtually all active systems undergo a form of dynamic arrest when crowding and activity compete, reminiscent of the…
Rejuvenation and Memory Effects in a Structural Glass
Camille Scalliet, Ludovic Berthier
We show numerically that a three-dimensional model for structural glass displays aging, rejuvenation and memory effects when submitted to a temperature cycle. These effects indicat…
Transition from confined to bulk dynamics in symmetric star-linear polymer mixtures
Daniele Parisi, Domenico Truzzolillo, Vishnu D. Deepak +2
We report on the linear viscoelastic properties of mixtures comprising multiarm star (as model soft colloids) and long linear chain homopolymers in a good solvent. In contrast to e…
Jamming transition in non-spherical particle systems: pentagons vs. disks
Yiqiu Zhao, Jonathan Barés, Hu Zheng +4
We investigate the jamming transition in a quasi-2D granular material composed of regular pentagons or disks subjected to quasistatic uniaxial compression. We report six major find…
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…
The Shape of Hanging Elastic Cylinders
Serge Mora, Edward Ando, Jean-Marc Fromental +2
Deformations of heavy elastic cylinders with their axis in the direction of earth's gravity field are investigated. The specimens, made of polyacrylamide hydrogels, are attached fr…