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High-resolution elastic analysis of thin-ply composite laminates

Résumé : Several studies showed that thin-plies composite laminates apparently exhibit higher strength than its counterpart using thicker plies. In this work, a high-resolution numerical discretization based on the use of in-plane-out-of-plane separated representations within the Proper Generalized Decomposition PGD framework is performed in different composites laminates for determining the effect of ply-thickness on the laminate stiffness. The results reveal that the global stiffness increases with the ply-thickness reduction. The analysis also reveals that this mechanical enhancement is due to structural effects and not to the mechanical confinement initially advanced.
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Jihed Zghal, Amine Ammar, Francisco Chinesta, Christophe Binetruy, Emmanuelle Abisset-Chavanne. High-resolution elastic analysis of thin-ply composite laminates. Composite Structures, Elsevier, 2017, pp.12. ⟨10.1016/j.compstruct.2017.03.083⟩. ⟨hal-02284774⟩

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