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Buckling Analysis of Variable-Angle Tow Composite Plates through Variable Kinematics Hierarchical Models

Article dans une revue avec comité de lecture
Author
GIUNTA, Gaetano
229915 Università degli Studi di Roma "La Sapienza" = Sapienza University [Rome] [UNIROMA]
371421 Centre de Recherche Public Henri-Tudor [Luxembourg] [CRP Henri-Tudor]
480071 Luxembourg Institute of Science and Technology [LIST]
96532 Centre de Recherche Public Henri Tudor [Headquarters] [CRP Henri Tudor]
ccIANNOTTA, Domenico Andrea
1002421 Institut de Mécanique et d'Ingénierie [I2M]
ccKIRKAYAK, LEVENT
ccMONTEMURRO, Marco
1002421 Institut de Mécanique et d'Ingénierie [I2M]

URI
http://hdl.handle.net/10985/25614
DOI
10.3390/jcs8080320
Date
2024-08-13
Journal
Journal of Composites Science

Abstract

Variable-Angle Tow (VAT) laminates can improve straight fiber composites’ mechanical properties thanks to the application of curvilinear fibers. This characteristic allows one to achieve ambitious objectives for design and performance purposes. Nevertheless, the wider design space and the higher number of parameters result in a more complex structural problem. Among the various approaches that have been used for VAT study, Carrera’s Unified Formulation (CUF) allows one to obtain multiple theories within the same framework, guaranteeing a good compromise between the results’ accuracy and the computational cost. In this article, the linear buckling behavior of VAT laminates is analyzed through the extension of CUF 2D plate models within Reissner’s Mixed Variational Theorem (RMVT). The results show that RMVT can better approximate the prebuckling nonuniform stress field of the plate when compared to standard approaches, thus improving the prediction of the linear buckling loads of VAT composites.

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