Unfolding the sulcus.

@article{Hohlfeld2011UnfoldingTS,
  title={Unfolding the sulcus.},
  author={E. M. Hohlfeld and Lakshminarayanan Mahadevan},
  journal={Physical review letters},
  year={2011},
  volume={106 10},
  pages={
          105702
        }
}
Sulci are localized furrows on the surface of soft materials that form by a compression-induced instability. We unfold this instability by breaking its natural scale and translation invariance, and compute a limiting bifurcation diagram for sulcfication showing that it is a scale-free, subcritical nonlinear instability. In contrast with classical nucleation, sulcification is continuous, occurs in purely elastic continua and is structurally stable in the limit of vanishing surface energy. During… CONTINUE READING

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