Effect of Functionally Graded Carbon Nanotube Reinforcement on the Dynamic Response of Composite Beams Subjected to a Moving Charge
Künye
Esen, İ., Koç, M. A., & Eroğlu, M. (2023). Effect of Functionally Graded Carbon Nanotube Reinforcement on the Dynamic Response of Composite Beams Subjected to a Moving Charge. Journal of Vibration Engineering & Technologies, 12(3), 5203–5218. https://doi.org/10.1007/s42417-023-01192-0 Özet
Purpose This article examines the forced vibrations of composite beams that have been reinforced with single-walled carbon nanotubes (SWCNTs) and subjected to a moving charge without considering the efect of mass inertia. Methods This study investigates three diferent beams, namely uniform distribution carbon nanotubes (UD-CNT), functionally graded Λ distribution carbon nanotubes (FGΛ-CNT), and functionally graded X distribution carbon nanotubes (FGXCNT). The SWCNTs exhibit length alignment along the axial direction, while their volume distributions are observed in the
thickness direction. The motion equations of beams are derived using Hamilton's principle and mass interaction forces based on a sinusoidal third-order shear deformation theory (TSDT). These equations are then converted into a single equation set and solved using Navier's method. Results This study presents comprehensive fndings on the efects of total volume fraction and distribution types of carbon
nanotubes (CNTs) on the forced vibration of a composite beam caused by a moving charge at diferent mass velocities. The FGX-CNT distribution of the beam has demonstrated increased resistance to the dynamic impact of live load. Conclusion The study’s fndings will aid in the development of micro-sensors that carry moving charges.