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11 papers · 1 filter
MRI investigation of granular interface rheology using a new cylinder shear apparatus
Pascal Moucheront, François Bertrand, Georg Koval +5
The rheology of granular materials near an interface is investigated through proton magnetic resonance imaging. A new cylinder shear apparatus has been inserted in the MRI device,…
Anisotropic nonlinear elasticity in a spherical bead pack: influence of the fabric anisotropy
Yacine Khidas, Xiaoping Jia
Stress-strain measurements and ultrasound propagation experiments in glass bead packs have been simultaneously conducted to characterize the stress-induced anisotropy under uniaxia…
Three-dimensional jamming and flows of soft glassy materials
Guillaume Ovarlez, Quentin Barral, Philippe Coussot
Various disordered dense systems such as foams, gels, emulsions and colloidal suspensions, exhibit a jamming transition from a liquid state (they flow) to a solid state below a yie…
Annealed lower tails for the energy of a polymer
Amine Asselah
We consider the energy of a randomly charged polymer. We assume that only charges on the same site interact pairwise. We study the lower tails of the energy, when averaged over bot…
Uniqueness of bounded solutions for the homogeneous Landau equation with a Coulomb potential
Nicolas Fournier
We prove the uniqueness of bounded solutions for the spatially homogeneous Fokker-Planck-Landau equation with a Coulomb potential. Since the local (in time) existence of such solut…
Nonlinear viscoelastic wave propagation: an extension of Nearly Constant Attenuation (NCQ) models
Nicolas Delépine, Luca Lenti, Guy Bonnet +1
Hysteretic damping is often modeled by means of linear viscoelastic approaches such as "nearly constant Attenuation (NCQ)" models. These models do not take into account nonlinear e…