143 citations · 629 across the 12 of their papers we have counts for
12 papers · 1 filter
Penetration of a spinning sphere impacting a granular medium
D. D. Carvalho, Y. Bertho, E. M. Franklin +1
We investigate experimentally the influence of rotation on the penetration depth of a spherical projectile impacting a granular medium. We show that a rotational motion significant…
Rheology of Granular Rafts
J. Lalieu, A. Seguin, G. Gauthier
Rheology of macroscopic particle-laden interfaces, called "Granular Rafts" has been experimentally studied, in the simple shear configuration. The shear-stress relation obtained fr…
Penetrating a granular medium by successive impacts
Antoine Seguin, Yann Bertho, Baptiste Darbois Texier
We consider the penetration dynamics of a vertical cylinder into a dry granular medium subjected to successive impacts. The depth of the impactor below the free surface first…
"Twist-Controlled" force amplification \& Spinning tension transition in yarn
Antoine Seguin, Jérôme Crassous
Combining experiments and numerical simulations with a mechanical/statistical model of twisted yarns, we discuss the spinning transition between a cohesion-less assembly of fibers…
Experimental evidences of the Gardner phase in a granular glass
Antoine Seguin, Olivier Dauchot
Analyzing the dynamics of a vibrated bi-dimensional packing of bidisperse granular discs below jamming, we provide evidences of a Gardner phase deep into the glass phase. To do so…
Local rheological measurements in the granular flow around an intruder
A. Seguin, C. Coulais, F. Martinez +2
The rheological properties of granular matter within a two-dimensional flow around a moving disk is investigated experimentally. Using a combination of photoelastic and standard te…
Elasticity of granular packings close to Jamming. Elasticité des empilements granulaires proche de la transition de blocage
Corentin Coulais, Antoine Seguin, Olivier Dauchot
We investigate experimentally the mechanical response to shear of a 2D packing of grains across the jamming transition. First, we develop a dedicated experimental setup, together w…
Shear modulus and Dilatancy Softening in Granular Packings above Jamming
Corentin Coulais, Antoine Seguin, Olivier Dauchot
We investigate experimentally the mechanical response of a monolayer of bi-disperse frictional grains to an inhomogeneous shear perturbation across the jamming transition. We infla…
Experimental velocity fields and forces for a cylinder penetrating into a granular medium
A. Seguin, Y. Bertho, F. Martinez +2
We present here a detailed granular flow characterization together with force measurements for the quasi-bidimensional situation of a horizontal cylinder penetrating vertically at…
Dense granular flow around a penetrating object: Experiments and hydrodynamic model
Antoine Seguin, Yann Bertho, Philippe Gondret +1
We present in this Letter experimental results on the bidimensional flow field around a cylinder penetrating into dense granular matter together with drag force measurements. A hyd…
Sphere penetration by impact in a granular medium: A collisional process
Antoine Seguin, Yann Bertho, Philippe Gondret +1
The penetration by a gravity driven impact of a solid sphere into a granular medium is studied by two-dimensional simulations. The scaling laws observed experimentally for both the…
Influence of confinement on granular penetration by impact
Antoine Seguin, Yann Bertho, Philippe Gondret
We study experimentally the influence of confinement on the penetration depth of impacting spheres into a granular medium contained in a finite cylindrical vessel. The presence of…