8.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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19 papers · 2 filters
Uncovering the dynamic precursors to motor-driven contraction of active gels
Jose Alvarado, Luca Cipelletti, Gijsje Koenderink
Cells and tissues have the remarkable ability to actively generate the forces required to change their shape. This active mechanical behavior is largely mediated by the actin cytos…
Sound attenuation in stable glasses
Lijin Wang, Ludovic Berthier, Elijah Flenner +2
Understanding the difference between universal low-temperature properties of amorphous and crystalline solids requires an explanation of the stronger damping of long-wavelength pho…
Root growth and force chains in a granular soil
M. Fakih, J. -Y. Delenne, F. Radjai +1
Roots provide basic functions to plants such as water/nutrient uptake and anchoring in soil. The growth and development of root systems contribute to colonizing the surrounding soi…
Core-Shell Microgel-Based Surface Coatings with Linear Thermoresponse
Marian Cors, Oliver Wrede, Anne-Caroline Genix +3
We study the swelling and shrinking behavior of core-shell microgels adsorbed on silicon wafers. In these systems, the core is made of cross-linked poly(N isopropylmethacrylamide)…
Recent advances in structural and dynamical propertiesof simplified industrial nanocomposites
Anne-Caroline Genix, Guilhem P. Baeza, Julian Oberdisse
A large body of experimental work on the microstructure and dynamics of simplifiedindustrial nanocomposites made of disordered silica filler in a styrene-butadiene matrixby solid-p…
Effect of Sinusoidal Surface Roughness and Energy on the Orientation of Cylinder-Forming Block Copolymer Thin Films
Yanyan Zhu, Karim Aissou, David Andelman +1
We explore the relative stability of three possible orientations of cylinder-forming di-block copolymer on a sinusoidally corrugated substrate. The cylinders can be aligned either…
Particle dynamics simulation of wet granulation in a rotating drum
Thanh Trung Vo, Saeid Nezamabadi, Patrick Mutabaruka +4
We simulate the granulation process of solid spherical particles in the presence of a viscous liquid in a horizontal rotating drum by using molecular dynamics simulations in three…
Seismicity in sheared granular matter
Aghil Abed Zadeh, Jonathan Barés, Joshua Socolar +1
We report on experiments investigating the dynamics of a slider that is pulled by a spring across a granular medium consisting of a vertical layer of photo-elastic disks. The motio…
A novel setup coupling space-resolved dynamic light scattering and rheometetry unveils the heterogeneous flow field and non-affine dynamics in startup shear of a gel
A. Pommella, A. -M. Philippe, T. Phou +2
We present a new light scattering setup coupled to a commercial rheometer operated in the plate-plate geometry. The apparatus allows the microscopic dynamics to be measured, discri…
Probing shear-induced rearrangements in Fourier Space. II. Differential Dynamic Microscopy
Stefano Aime, Luca Cipelletti
We discuss in two companion papers (arXiv:1802.03737 and the present manuscript) how Fourier-space measurements may be coupled to rheological tests in order to elucidate the relati…
Structural and Topological Nature of Plasticity in Sheared Granular Materials
Yixin Cao, Jindong Li, Binquan Kou +9
Upon mechanical loading, granular materials yield and undergo plastic deformation. The nature of plastic deformation is essential for the development of the macroscopic constitutiv…
Kinetic signature of cooperativity in the irreversible collapse of a polymer
Vittore F. Scolari, Guillaume Mercy, Romain Koszul +2
We investigate the kinetics of a polymer collapse due to the formation of irreversible crosslinks between its monomers. Using the contact probability as a scale-dependent or…
Microscopic dynamics and failure precursors of a gel under mechanical load
Stefano Aime, Laurence Ramos, Luca Cipelletti
Material failure is ubiquitous, with implications from geology to everyday life and material science. It often involves sudden, unpredictable events, with little or no macroscopica…
Low-frequency vibrational modes of stable glasses
Lijin Wang, Andrea Ninarello, Pengfei Guan +3
We numerically study the evolution of the vibrational density of states of zero-temperature glasses when their kinetic stability is varied over an extremely broad range, ran…
Structure and dynamics of a polymer-nanoparticle composite: Effect of nanoparticle size and volume fraction
Valerio Sorichetti, Virginie Hugouvieux, Walter Kob
We use molecular dynamics simulations to study a semidilute, unentangled polymer solution containing well dispersed, weakly attractive nanoparticles (NP) of size () smaller th…
Discontinuous shear-thickening in Brownian suspensions
Takeshi Kawasaki, Ludovic Berthier
Discontinuous shear-thickening in dense suspensions naturally emerges from the activation of frictional forces by shear flow in non-Brownian systems close to jamming. Yet, this phy…
Impact of beads and drops on a repellent solid surface: a unified description
Sristhti Arora, Jean-Marc Fromental, Serge Mora +3
We investigate freely expanding sheets formed by ultrasoft gel beads, and liquid and viscoelastic drops, produced by the impact of the bead or drop on a silicon wafer covered with…
Crackling to periodic dynamics in sheared granular media
Aghil Abed Zadeh, Jonathan Barés, Robert Behringer
The local and global dynamics of a sheared granular medium are studied in a model experiment as a function of several macroscopic parameters. We observe that by changing the shear…
Power law viscoelasticity of a fractal colloidal gel
Stefano Aime, Luca Cipelletti, Laurence Ramos
Power law rheology is of widespread occurrence in complex materials that are characterized by the presence of a very broad range of microstructural length and time scales. Although…