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Jamming in Systems Composed of Frictionless Ellipse-Shaped Particles
2009
Physical Review Letters
We study the structural and mechanical properties of jammed ellipse packings, and find that the nature of the jamming transition in these systems is fundamentally different from that for spherical particles. Ellipse packings are generically hypostatic with more degrees of freedom than constraints. The spectra of low energy excitations possess two gaps and three distinct branches over a range of aspect ratios. In the zero compression limit, the energy of the modes in the lowest branch increases
doi:10.1103/physrevlett.102.255501
pmid:19659093
fatcat:tbiyzhzrareotkbxqxudwv6dai