Abstract
This paper describes recent progress on materials modelling and numerical simulation of fibre reinforced composite panel structures subjected to transverse impact loads. A model of impact damage is presented which includes the contribution from delamination by introducing cohesive interfaces in the laminate model, which may degrade or fail when a delamination failure energy criterion is reached. A continuum damage mechanics model is applied to model the delamination failure at these interfaces which has been implemented in a commercial explicit finite element (FE) code. A comparison of contact load pulses and failure modes from numerical simulations and drop tower impact tests shows good agreement for the prediction of delamination damage and penetration under a range of impact conditions. Results show the importance of including delamination damage in the impact models.
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Johnson, A., Pentecôte, N., Körber, H. (2006). INFLUENCE OF DELAMINATION ON THE PREDICTION OF IMPACT DAMAGE IN COMPOSITES. In: Sadowski, T. (eds) IUTAM Symposium on Multiscale Modelling of Damage and Fracture Processes in Composite Materials. SOLID MECHANICS AND ITS APPLICATIONS, vol 135. Springer, Dordrecht. https://doi.org/10.1007/1-4020-4566-2_7
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DOI: https://doi.org/10.1007/1-4020-4566-2_7
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-4565-3
Online ISBN: 978-1-4020-4566-0
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