A dynamical law for slow crack growth in polycarbonate films
Classical Physics
2009-11-13 v1
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.
Cite
@article{arxiv.0706.3522,
title = {A dynamical law for slow crack growth in polycarbonate films},
author = {Pierre-Philippe Cortet and Loic Vanel and Sergio Ciliberto},
journal= {arXiv preprint arXiv:0706.3522},
year = {2009}
}