| Numéro |
J. Phys. IV France
Volume 134, August 2006
EURODYMAT 2006 - 8th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
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|---|---|---|
| Page(s) | 1077 - 1083 | |
| DOI | https://doi.org/10.1051/jp4:2006134165 | |
| Publié en ligne | 26 juillet 2006 | |
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 1077-1083
DOI: 10.1051/jp4:2006134165
Meshless modelling of dynamic behaviour of glasses under intense shock loadings: Application to matter ejection during high velocity impacts on thin brittle targets
Y. Michel, J.-M. Chevalier, C. Durin, C. Espinosa, F. Malaise and J.-J. BarrauCEA-CESTA /DEV/SDET/LDDT, BP. 2, 33114 Le Barp,
Published online: 26 July 2006
Abstract
The purpose of this study is to present a new material
model adapted to SPH modelling of dynamic behaviour of glasses under shock
loadings. This model has the ability to reproduce fragmentation and
densification of glasses under compression as well as brittle tensile
failure. It has been implemented in Ls-Dyna software and coupled with a SPH
code. By comparison with CEA-CESTA experimental data the model has been
validated for fused silica and Pyrex glass for stress level up to 35GPa. For
Laser MegaJoule applications, the present material model was applied to 3D
high velocity impacts on thin brittle targets with good agreement with
experimental data obtained using CESTA's double stage light gas gun in term
of damages and matter ejection.
© EDP Sciences 2006