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arXiv · 0706.3522

A dynamical law for slow crack growth in polycarbonate films

Pierre-Philippe Cortet·Loic Vanel·Sergio Ciliberto
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Abstract

We study experimentally the slow growth of a single crack in polycarbonate films submitted to uniaxial and constant imposed stress. For this visco-plastic material, we uncover a dynamical law that describes the dependence of the instantaneous crack velocity with experimental parameters. The law involves a Dugdale-Barenblatt static description of crack tip plastic zones associated to an Eyring's law and an empirical dependence with the crack length that may come from a residual elastic field.

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Pierre-Philippe Cortet, Loic Vanel, Sergio Ciliberto. 2007-06-24. A dynamical law for slow crack growth in polycarbonate films. https://doi.org/10.1103/physrevlett.99.205502

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