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Optimization of graphene/fibre reinforced cantilever skew laminates for maximum fundamental frequency via non-uniform distribution of reinforcements

Jeawon Y., Drosopoulos Georgios, Foutsitzi Georgia, Stavroulakis Georgios, Adali Sarp

Πλήρης Εγγραφή


URI: http://purl.tuc.gr/dl/dias/C528702D-03BC-4C72-AD31-CEAE9DBF6707
Έτος 2023
Τύπος Δημοσίευση σε Περιοδικό με Κριτές
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Βιβλιογραφική Αναφορά Y. Jeawon, G.A. Drosopoulos, G. Foutsitzi, G.E. Stavroulakis, and S. Adali “Optimization of graphene/fibre reinforced cantilever skew laminates for maximum fundamental frequency via non-uniform distribution of reinforcements,” Thin-Walled Struct., vol. 189, Aug. 2023, doi: 10.1016/j.tws.2023.110903. https://doi.org/10.1016/j.tws.2023.110903
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Περίληψη

Three-phase graphene/fibre-reinforced cantilever skew laminates are optimized with the design objective of maximizing the fundamental frequency. Four optimal design problems are formulated involving one, two, three, and four design variables: graphene content, fibre content, layer thicknesses, and the fibre orientations. Optimization is implemented using a Sequential Quadratic Programming optimization algorithm within finite element analysis. It is observed that optimizing the graphene and fibre contents across the thickness leads to increased fundamental frequency. A trend is observed for the frequency of skew laminates to increase but for their design efficiency to decrease compared to rectangular laminates.

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