Strong Cosserat Elasticity in a Transversely Isotropic Polymer Lattice.

  title={Strong Cosserat Elasticity in a Transversely Isotropic Polymer Lattice.},
  author={Zach Rueger and Roderic S. Lakes},
  journal={Physical review letters},
  volume={120 6},
Large size effects are experimentally measured in lattices of triangular unit cells: about a factor of 36 in torsion rigidity and 29 in bending rigidity. This nonclassical phenomenon is consistent with Cosserat elasticity, which allows for the rotation of points and distributed moments in addition to the translation of points and force stress of classical elasticity. The Cosserat characteristic length for torsion is ℓ_{t}=9.4  mm; for bending, it is ℓ_{b}=8.8  mm; these values are comparable to… 

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