We introduce a geometric model for unjamming the polydisperse hard-disk packing. The unjamming corresponds to a critical packing density which is assumed to happen uniformly throughout the packing. However, this model can be used for prediction of local dilation in packings. Molecular dynamics...

We describe three-dimensional froths obtained by radical tessellation of random binary assemblies of spheres at different packing fractions C from C=0 to C∼0.60 and for large ranges of composition. The packings are built numerically using different algorithms: collective reorganization, random...