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Simulation of dynamic delamination and mode I energy dissipation

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.
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  • HAL Id : hal-01851921, version 1
  • OATAO : 2260


Muhammad Ilyas, Christine Espinosa, Frederic Lachaud, Michel Salaün. Simulation of dynamic delamination and mode I energy dissipation. 7th European LS-DYNA Conference, May 2009, Salzburg, Austria. pp.1-7. ⟨hal-01851921⟩



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