249 citations · 725 across the 11 of their papers we have counts for
6 papers · 1 filter
Frictional weakening induced by cohesion: the numerical case of cohesive granular failures
Lydie Staron, Laurent Duchemin, Anais Abramian +1
The failure of 2D numerical cohesive granular steps collapsing under gravity are simulated for a large range of cohesion. Focussing on the cumulative displacement of the grains, an…
Stress partition and micro-structure in size-segregating granular flows
L. Staron, J. C. Phillips
When a granular mixture involving grains of different sizes is shaken, sheared, mixed, or left to flow, grains tend to separate by sizes in a process known as size segregation. In…
Continuum simulation of the discharge of the granular silo: a validation test for the mu(I)-visco-plastic flow law
L. Staron, P. -Y. Lagrée, S. Popinet
Using both a continuum Navier-Stokes solver, with the mu(I)-flow-law implemented to model the viscous behavior, and the discrete Contact Dynamics algorithm, the discharge of granul…
Friction and the oscillatory motion of granular flows
Lydie Staron
This contribution reports on numerical simulations of 2D granular flows on erodible beds. The broad aim is to investigate whether simple flows of model granular matter exhibits spo…
Friction vs Texture at the Approach of a Granular Avalanche
Lydie Staron, Farhang Radjai
We perform a novel analysis of the granular texture of a granular bed close to stability limit. Our analysis is based on a unique criterion of friction mobilisation in a simulated…
Multiscale Analysis of the Stress State in a Granular Slope in Transition to Failure
Lydie Staron, Jean-Pierre Vilotte, Farhang Radjai
By means of contact dynamics simulations, we analyze the stress state in a granular bed slowly tilted towards its angle of repose. An increasingly large number of grains are overlo…