501 citations · 2k across the 54 of their papers we have counts for
53 papers
Structural transitions in jammed asymmetric bidisperse granular packings
Juan C. Petit, Matthias Sperl
We study the local structural changes along the jamming transitions in asymmetric bidisperse granu\-lar packings. The local structure of the packing is assessed by the contact orie…
Granular piston-probing in microgravity: powder compression, from densification to jamming
Olfa D'Angelo, Anabelle Horb, Aidan Cowley +2
The macroscopic response of granular solids is determined by the microscopic fabric of force chains, which, in turn, is intimately linked to the history of the solid. To query the…
Dynamical yield criterion for granular matter from first principles
O. Coquand, M. Sperl
We investigate, using a recently developed model of liquid state theory describing the rheology of dense granular flows, how a yield stress appears in granular matter at the yieldi…
Bulk Modulus along Jamming Transition Lines of Bidisperse Granular Packings
Juan C. Petit, Nishant Kumar, Stefan Luding +1
We present 3D DEM simulations of bidisperse granular packings to investigate their jamming densities, , and dimensionless bulk moduli, , as a function of the size ratio, $δ…
Granular rheology: a tale of three time scales
Olivier Coquand, Wolf Till Kranz, Matthias Sperl
We adapt statistical models of the physics of complex fluids to study the rheology of granular liquids. This allows us to provide laws of granular rheology based on first principle…
Velocity Distribution of a Homogeneously Cooling Granular Gas
Peidong Yu, Matthias Schröter, Matthias Sperl
In contrast to molecular gases, granular gases are characterized by inelastic collisions and require therefore permanent driving to maintain a constant kinetic energy. The kinetic…