A dynamical law for slow crack growth in polycarbonate films
arXiv:0706.3522 · doi:10.1103/PhysRevLett.99.205502
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.
References in corpus (7)
- Thermal Effects in the Shear-Transformation-Zone Theory of Amorphous Plasticity: Comparisons to Metallic Glass Data
- Athermal Shear-Transformation-Zone Theory of Amorphous Plastic Deformation I: Basic Principles
- Subcritical statistics in rupture of fibrous materials: Experiments and model
- Athermal Shear-Transformation-Zone Theory of Amorphous Plastic Deformation II: Analysis of Simulated Amorphous Silicon
- Thermal activation of rupture and slow crack growth in a model of homogenous brittle materials
- Subcritical crack growth in fibrous materials
- Slow crack growth in polycarbonate films