We will highlight work on packing structure of soft filaments as a function of twist [1,2]. Depending on the elastic properties of the material, we demonstrate the ordered and disordered packing structures can be obtained. : "Persistence of perfect packing in twisted bundles of elastic filaments," Andreea Panaitescu, Gregory M. Grason, Arshad Kudrolli, Phys. Rev. Lett. (accepted). Preprint: arXiv:1802.00966. : "Measuring geometric frustration in twisted inextensible filament bundles, Andreea Panaitescu, Gregory M. Grason, Arshad Kudrolli, Phys. Rev. E 95, 052503 (2017). Preprint: arXiv:1705.04625.
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