J. Phys. IV France
Volume 110, September 2003
Page(s) 299 - 304

J. Phys. IV France
110 (2003) 299
DOI: 10.1051/jp4:20020710

A numerical model to describe damage in glass under impact loading

X. Brajer1, 2, F. Hild1, S. Roux3 and R. Gy2

1  LMT-Cachan, ENS de Cachan, UMR 8535 du CNRS, Université Paris 6, 61 avenue du Président Wilson, 94235 Cachan cedex, France
2  Saint-Gobain Recherche, 39 quai Lucien Lefranc, 93303 Aubervilliers cedex, France
3  SVI, UMR du CNRS/Saint-Gobain, 39 quai Lucien Lefranc, 93303 Aubervilliers cedex, France

This work presents an anisotropic damage model and its non-local extension to deal with fragmentation induced by impact loadings. Discrete cracks are described via non-local damage parameters. The damage model is based on quasi-static properties of flaw distributions and enables us to reproduce dynamic cracking patterns obtained in edge-on-impact tests. Different regimes such as single or multiple fragmentation appear and can be explamed by this approach.

© EDP Sciences 2003