Influences of the graphene reinforcements on the natural vibrational properties, nonlinear flutter responses, and the chaotic motions of the FG-GR laminated composite cantilever rectangular variable cross-section plate in the supersonic flow

Chaos Solitons & Fractals, Год журнала: 2025, Номер 194, С. 116221 - 116221

Опубликована: Фев. 28, 2025

Язык: Английский

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Dynamic Behavior of Carbon Nanotube-Reinforced Polymer Composite Ring-like Structures: Unraveling the Effects of Agglomeration, Porosity, and Elastic Coupling

Polymers, Год журнала: 2025, Номер 17(5), С. 696 - 696

Опубликована: Март 5, 2025

This research examines the free vibration characteristics of composite ring-like structures enhanced with carbon nanotubes (CNTs), taking into account effects CNT agglomeration. The structural framework comprises two concentric rings linked by elastic springs, creating a coupled beam ring (CBR) system. first-order shear deformation theory (FSDT) is applied to for transverse deformation, while Hamilton's principle employed formulate governing equations motion. effective mechanical properties material are assessed regard agglomeration, which has significant impact on modulus and overall dynamic behavior structure. numerical analysis explores influence porosity distribution, boundary conditions (BCs), stiffness springs natural frequencies (NVFs). results demonstrate that an increase in agglomeration leads reduction composite, consequently decreasing NVFs. Furthermore, asymmetric distributions result nonlinear fluctuations NVFs due irregularities mass stiffness, whereas uniform display nearly linear relationship. study also emphasizes importance coupling influencing vibrational response CBR systems. These findings offer insights design optimization advanced applicable aerospace, nanotechnology, high-performance engineering

Язык: Английский

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Traveling-wave vibration of spinning thick multi-conical shells: New solving system

International Journal of Mechanical Sciences, Год журнала: 2025, Номер 296, С. 110313 - 110313

Опубликована: Апрель 28, 2025

Язык: Английский

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Trigonometric shear deformation theories for geometric nonlinear analysis of curved composite laminated shells: Post-buckling prediction using a parallelized approach

Thin-Walled Structures, Год журнала: 2025, Номер unknown, С. 113379 - 113379

Опубликована: Май 1, 2025

Язык: Английский

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