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

A numerical model to describe damage in glass under impact loading

X. Brajer^{1, 2}, F. Hild¹, S. Roux³ and R. Gy<sup>2

1</sup>  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

Abstract
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.

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