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Minimal energy packings of nearly flexible polymers
Robert S. Hoy, Jared Harwayne-Gidansky, Corey S. O'Hern
We extend recent studies of the minimal energy packings of short flexible polymers with hard-core-like repulsions and short-range attractions to include bond-angle interactions wit…
Isostaticity at Frictional Jamming
Stefanos Papanikolaou, Corey S. O'Hern, Mark D. Shattuck
Amorphous packings of frictionless, spherical particles are isostatic at jamming onset, with the number of constraints (contacts) equal to the number of degrees of freedom. Their s…
Rods are less fragile than spheres: Structural relaxation in dense liquids composed of anisotropic particles
Tianqi Shen, Carl Schreck, Bulbul Chakraborty +2
We perform extensive molecular dynamics simulations of dense liquids composed of bidisperse dimer- and ellipse-shaped particles in 2D that interact via repulsive contact forces. We…
Structure of finite sphere packings via exact enumeration: Implications for colloidal crystal nucleation
Robert S. Hoy, Jared Harwayne-Gidansky, Corey S. O'Hern
We analyze the geometric structure and mechanical stability of a complete set of isostatic and hyperstatic sphere packings obtained via exact enumeration. The number of nonisomorph…
Constraints and vibrations in static packings of ellipsoidal particles
Carl F. Schreck, Mitch Mailman, Bulbul Chakraborty +1
We numerically investigate the mechanical properties of static packings of ellipsoidal particles in 2D and 3D over a range of aspect ratio and compression . While amorphous pac…