A particle-in-cell formulation for large deformation in Cosserat continua

Frédéric Dufour (1) , Hans Muhlhaus (1) , Louis Moresi (1)

1 CSIRO - Commonwealth Scientific and Industrial Research Organisation [Canberra]

We present a new approach to modeling of granular flows using a combination of Cosserat theory for granular material and a particle-in-cell finite element method capable of handle extremely large material deformation. Benchmarking against analytical solutions highlightsthe strengths and weaknesses of the method. We demonstrate one application of the method in modeling the discharge of granular material from a silo.

Domaines: Mécanique [physics.med-ph]; Matériaux

Frédéric Dufour, Hans Muhlhaus, Louis Moresi. A particle-in-cell formulation for large deformation in Cosserat continua. Bifurcation and Localisation Theory in Geomechanics, 2001, Perth, Australia. ⟨hal-01007790⟩