Linear aeroelastic analysis of cantilever hybrid composite laminated plates with curvilinear fibres and carbon nanotubes

• Type: Article in International Scientific Journal
• Date: 2021

Authors

Pedro Camacho (Author) FEUP; Hamed Akhavan (Author) FEUP; Pedro Ribeiro (Author) FEUP

Journal

Title: Composite Structures

Vol. 266

ISSN: 0263-8223

Publisher: Elsevier

Indexing

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Associated Projects

FlutVibHyb - Aperfeiçoamento das características dinâmicas e da resistência a instabilidades aeroelásticas de painéis em materiais compósitos através de nanotubos de carbono e de fibras de carbono curvilíneas

Other information

Authenticus ID: P-00T-PDM

DOI: 10.1016/j.compstruct.2021.113765

Abstract (EN): In this paper, cantilever laminated composite plates, subjected to supersonic airflow, are studied in the linear elastic regime. The considered material is a multiscale three-phase composite, constituted by epoxy resin reinforced with multi-walled carbon nanotubes and curvilinear carbon fibres. The orientation of the fibres is defined using three different functions. A model based on a third-order shear deformation theory and a Aversion finite element is applied. Furthermore, a hierarchical approach is applied to characterise the mechanical properties of the composite material. A combination of adequate micromechanics based models, including a modified version of the Halpin-Tsai model, the Rule of Mixtures, a unit cell-based model, and the Chamis model, is implemented. The aeroelastic analysis is performed considering the linear piston theory to evaluate flutter (dynamic instability) and divergence (static instability) in such structures. The improvements achieved through the combination of carbon nanotubes and curvilinear fibres on the instabilities are explored.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11