Dynamic response of FG-CNTRC beams subjected to a moving mass

This article presents the forced vibration of composite beams reinforced by single-walled carbon nanotubes (SWCNTs) and subjected to a moving mass. Considering distribution such as uniform (UD-CNT), functionally graded Λ (FGΛ-CNT) X (FGX-CNT), three different are studied. Based on third-order shear deformation theory (TSDT), motion equations derived using Hamilton's principle. Including mass interaction forces, transformed into finite element equation in which two-node beam with eight degrees freedom is utilized. To improve efficiency element, transverse rotation employed an independent variable derivation element. The characteristics, including dynamic magnification factors time histories for mid-span deflections computed Newmark method. Numerical result reveal that clearly influenced CNT reinforcement, significantly decreased increasing volume fraction. It also shown FGX-CNT best resistance terms lowest deflection factors. effects total fraction load velocity behaviour nanotube composites (FG-CNTRC) examined detail highlighted.