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Combined loadings after medium velocity impact on large CFRP laminated plates: Discrete ply model simulations

Serra, Joël and Trellu, Antoine and Bouvet, Christophe and Rivallant, Samuel and Castanié, Bruno and Ratsifandrihana, Léon Combined loadings after medium velocity impact on large CFRP laminated plates: Discrete ply model simulations. (2021) Composites Part C, 6. 100203.

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Official URL: https://doi.org/10.1016/j.jcomc.2021.100203

Abstract

turning to “virtual testing” methods. To help achieve this objective, a new methodology has been developed at the Institut Cl´ement Ader. It is based on a complex loading test rig for technological specimens (more representative than the usual level of coupons) and the Discrete Ply Model (DPM), a model allowing the main damage occurring in composite structures to be simulated. This research focuses on the combined loading of CFRP plates after impact. In a previous work, plates were experimentally impacted and loaded after the impact in the VERTEX test rig and a methodology to transfer boundary conditions to the numerical model was validated using a simple model without damage. In the work presented here, the DPM was used to simulate both the impact and the complex loading after impact tests. Numerical results and experimental results showed satisfactory correlation. The research undertaken demonstrates that the impact damage has very little influence when the tests are performed at larger scales than coupons. It is therefore paramount to use a pyramidal approach to design and test composite structures, in order to avoid oversizing.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Segula Technologies (FRANCE)
Laboratory name:
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Deposited On:17 Jan 2022 14:34

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