A Solution Method for Longitudinal Vibrations of Functionally Graded Nanorods

Authors : Büşra UZUN, Mustafa Özgür YAYLI

Pages : 78-87

Doi:10.24107/ijeas.782419

View : 11 | Download : 4

Publication Date : 2020-10-14

Article Type : Research Paper

Abstract :In the present study, a nonlocal finite element formulation of free longitudinal vibration is derived for functionally graded nano-sized rods. Size dependency is considered via Eringen’s nonlocal elasticity theory. Material properties, Young’s modulus and mass density, of the nano-sized rod change in the thickness direction according to the power-law. For the examined FG nanorod finite element, the axial displacement is specified with a linear function. The stiffness and mass matrices of functionally graded nano-sized rod are found by means of interpolation functions. Functionally graded nanorod is considered with clamped-free boundary condition and its longitudinal vibration analysis is performed.
Keywords : Nonlocal elaticity theory, Functionally graded materials, Nanorod, Finite element method, Vibration