Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Buckling Analysis of Variable-Angle Tow composite Plates Through Variable Kinematics Hierarchical Models

Version 1 : Received: 16 May 2024 / Approved: 16 May 2024 / Online: 16 May 2024 (11:36:18 CEST)

How to cite: Giunta, G.; Iannotta, D. A.; Kirkayak, L.; Montemurro, M. Buckling Analysis of Variable-Angle Tow composite Plates Through Variable Kinematics Hierarchical Models. Preprints 2024, 2024051103. https://doi.org/10.20944/preprints202405.1103.v1 Giunta, G.; Iannotta, D. A.; Kirkayak, L.; Montemurro, M. Buckling Analysis of Variable-Angle Tow composite Plates Through Variable Kinematics Hierarchical Models. Preprints 2024, 2024051103. https://doi.org/10.20944/preprints202405.1103.v1

Abstract

Variable-Angle Tow (VAT) laminates can improve straight fiber composites mechanical properties thanks to the application of curvilinear fibers. This characteristic allows 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 VATs study, Carrera’s Unified Formulation (CUF) allows 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 the Reissner’s Mixed Variational Theorem (RMVT). Results show that RMVT can better approximate the prebuckling non-uniform stress field of the plate when compared to standard approaches, thus improving the prediction of the linear buckling loads of VAT composites.

Keywords

Buckling Analysis; Finite Element Method; Variable-Angle Tow Plates; Carrera’s Unified Formulation; Reissner’s Mixed Variational Theorem

Subject

Engineering, Aerospace Engineering

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