High resolution description of a crack front in a heterogeneous Plexiglas block.

@article{Delaplace1999HighRD,
  title={High resolution description of a crack front in a heterogeneous Plexiglas block.},
  author={Arnaud Delaplace and Jean Schmittbuhl and Knut J\orgen M{\aa}l\oy},
  journal={Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics},
  year={1999},
  volume={60 2 Pt A},
  pages={1337-43}
}
We study experimentally the propagation of an in-plane fracture into a transparent and heterogeneous Plexiglas block. A stable crack propagation in mode I is monitored by an imposed displacement. The experimental setup allows a high resolution observation of the crack front in situ. Self-affine properties of the crack front are described over more than three decades using several techniques: variable bandwidth, return probability, Fourier spectrum, and wavelet analysis. The different methods… CONTINUE READING
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