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Meshless modelling of dynamic behaviour of glasses under intense shock loadings: application to matter ejection during high velocity impacts on thin brittle targets

Michel, Yann and Chevalier, Jean-Marc and Durin, Christian and Espinosa, Christine and Malaise, Frédéric and Barrau, Jean-Jacques Meshless modelling of dynamic behaviour of glasses under intense shock loadings: application to matter ejection during high velocity impacts on thin brittle targets. (2006) In: 8th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading, 11-15 Sept 2006, Dijon, France .

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Official URL: http://dx.doi.org/10.1051/jp4:2006134165

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 in term of damages and matter ejection with experimental data obtained using CESTA’s double stage light gas gun.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA
French research institutions > Centre National des Etudes Spatiales - CNES
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
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Deposited By:ESPINOSA Christine

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