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A dynamical law for slow crack growth in polycarbonate films

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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https://hal-ens-lyon.archives-ouvertes.fr/ensl-00156750
Contributor : Loïc Vanel <>
Submitted on : Friday, June 22, 2007 - 2:37:23 PM
Last modification on : Thursday, April 2, 2020 - 9:26:09 AM
Document(s) archivé(s) le : Thursday, April 8, 2010 - 9:15:14 PM

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Pierre-Philippe Cortet, Loïc Vanel, Sergio Ciliberto. A dynamical law for slow crack growth in polycarbonate films. 2007. ⟨ensl-00156750v1⟩

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