Publication :


Title:

Simulation of dynamic delamination and mode I energy dissipation

Authors: M. Ilyas, C. Espinosa, F. Lachaud and M. Salaün
Year: mai 2009
Proceedings de : 7th European LS-DYNA Conference, 14-15 Mai 2009, Salzburg (A).

OATAO: 2260

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.

Bibtex citation :
@INPROCEEDINGS{Ilyas2009,
Author={Ilyas, M. and Espinosa, C. and Lachaud, F. and Sala\"un, M.},
Title={Simulation of dynamic delamination and mode I energy dissipation},
Booktitle={7th European LS-DYNA Conference, 14-15 Mai 2009, Salzburg (A)},
Pages={},
Year={2009}}


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