On three-dimensional dilational elastic metamaterials

  title={On three-dimensional dilational elastic metamaterials},
  author={Tiemo Buckmann and Robert Schittny and Michael Thiel and Muamer Kadic and Graeme W. Milton and Martin Wegener},
  journal={New Journal of Physics},
Dilational materials are stable, three-dimensional isotropic auxetics with an ultimate Poissonʼs ratio of −1. Inspired by previous theoretical work, we design a feasible blueprint for an artificial material, a metamaterial, which approaches the ideal of a dilational material. The main novelty of our work is that we also fabricate and characterize corresponding metamaterial samples. To reveal all modes in the design, we calculate the phonon band structures. On this basis, using cubic symmetry we… Expand

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