Size-dependent nonlinear elastic scaling of multiwalled carbon nanotubes.

@article{Arias2008SizedependentNE,
  title={Size-dependent nonlinear elastic scaling of multiwalled carbon nanotubes.},
  author={Irene Arias and Marino Arroyo},
  journal={Physical review letters},
  year={2008},
  volume={100 8},
  pages={
          085503
        }
}
We characterize through large-scale simulations the nonlinear elastic response of multiwalled carbon nanotubes (MWCNTs) in torsion and bending. We identify a unified law consisting of two distinct power law regimes in the energy-deformation relation. This law encapsulates the complex mechanics of rippling and is described in terms of elastic constants, a critical length scale, and an anharmonic energy-deformation exponent. The mechanical response of MWCNTs is found to be strongly size dependent… CONTINUE READING
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