Crack front dynamics across a single heterogeneity.

@article{Chopin2011CrackFD,
  title={Crack front dynamics across a single heterogeneity.},
  author={Julien Chopin and Alexis Prevost and Arezki Boudaoud and Mokhtar Adda-Bedia},
  journal={Physical review letters},
  year={2011},
  volume={107 14},
  pages={144301}
}
We study the spatiotemporal dynamics of a crack front propagating at the interface between a rigid substrate and an elastomer. We first characterize the kinematics of the front when the substrate is homogeneous and find that the equation of motion is intrinsically nonlinear. We then pattern the substrate with a single defect. Steady profiles of the front are well described by a standard linear theory with nonlocal elasticity, except for large slopes of the front. In contrast, this theory seems… CONTINUE READING

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