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Free vibration of functionally graded carbon nanotubes reinforced composite nanobeams
Miloud Ladmek,Abdelkader Belkacem,Ahmed Amine Daikh,Aicha Bessaim,Aman Garg,Mohammed Sid Ahmed Houari,Mohamed-Ouejdi Belarbi,Abdelhak Ouldyerou Techno-Press 2023 Advances in materials research Vol.12 No.2
This paper proposes an analytical method to investigate the free vibration behaviour of new functionally graded (FG) carbon nanotubes reinforced composite beams based on a higher-order shear deformation theory. Cosine functions represent the material gradation and material properties via the thickness. The kinematic relations of the beam are proposed according to trigonometric functions. The equilibrium equations are obtained using the virtual work principle and solved using Navier's method. A comparative evaluation of results against predictions from literature demonstrates the accuracy of the proposed analytical model. Moreover, a detailed parametric analysis checks for the sensitivity of the vibration response of FG nanobeams to nonlocal length scale, strain gradient microstructure-scale, material distribution and geometry.