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Simulation of dynamic delamination and mode I energy dissipation

Ilyas, Muhammad and Espinosa, Christine and Lachaud, Frédéric and Salaün, Michel Simulation of dynamic delamination and mode I energy dissipation. (2009) In: 7th European LS-DYNA Conference, 14-15 Mai 2009, Salzburg, Austria .

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Abstract

Delamination initiation and propagation of aeronautic composites is an active field of research. In this paper we present a methodology for critical energy release rate correlation of numerical simulation and experimental data. Experiments of mode I critical energy release rate were carried out at quasi static and pseudo dynamic loading rates. Cohesive finite elements are used to predict the propagation of delamination in a carbon fiber and epoxy resin composite material. A bilinear material model is implemented via user defined cohesive material subroutine in LS-DYNA. The influence of mode I energy release rate in mixed mode loading, due to a low velocity impact, is also investigate.

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
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Deposited By: Muhammad ILYAS
Deposited On:07 Apr 2009 14:37

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