310 citations · 711 across the 9 of their papers we have counts for
9 papers
A soft particle dynamics method based on shape degrees of freedom
Yohann Trivino, Vincent Richefeu, Farhang Radjai +2
In this paper, we present a 2D numerical model developed to simulate the dynamics of soft, deformable particles. To accommodate significant particle deformations, the particle surf…
High compression of granular assemblies of brittle hollow tubular particles
M. Stasiak, G. Combe, V. Richefeu +2
This paper is devoted to the micro-mechanical origins of the high compressibility of brittle tubular particle assemblies. The material is extremely porous due to the presence of a…
Studying the influence of inclusion characteristics on the characteristic length involved in quasi-brittle materials using the lattice element method
Huu Phuoc Bui, Vincent Richefeu, Frédéric Dufour
Unlike nonlocal models, there is no need to introduce an internal length in the constitutive law for lattice model at the mesoscopic scale. Actually, the internal length is not exp…
Experimental validation of nonextensive scaling law in confined granular media
Gaël Combe, Vincent Richefeu, Marta Stasiak +1
In this letter, we address the relationship between the statistical fluctuations of grain displacements for a full quasistatic plane shear experiment, and the corresponding anomalo…
Particle shape dependence in 2D granular media
B. Saint-Cyr, K. Szarf, C. Voivret +9
Particle shape is a key to the space-filling and strength properties of granular matter. We consider a shape parameter describing the degree of distortion from a perfectly sphe…
An experimental assessment of displacement fluctuations in a 2D granular material subjected to shear
Vincent Richefeu, Gaël Combe, Gioacchino Viggiani
In a granular material, a macroscopically homogeneous deformation does not correspond to a homogeneous displacement field when looking at the individual grains. The deviation of a…
Short-time dynamics of a packing of polyhedral grains under horizontal vibrations
Émilien Azema, Farhang Radjaï, Robert Peyroux +2
We analyze the dynamics of a 3D granular packing composed of particles of irregular polyhedral shape confined inside a rectangular box with a retaining wall sub jected to horizonta…
Stress transmission in wet granular materials
Vincent Richefeu, Farhang Radjaï, Moulay Saïd El Youssoufi
We analyze stress transmission in wet granular media in the pendular state by means of three-dimensional molecular dynamics simulations. We show that the tensile action of capillar…
Shear strength properties of wet granular materials
Vincent Richefeu, Moulay Saïd El Youssoufi, Farhang Radjaï
We investigate shear strength properties of wet granular materials in the pendular state (i.e. the state where the liquid phase is discontinuous) as a function of water content. Sa…