Structural Engineering and Mechanics

Volume 82, Number 6, 2022, pages 691-699

DOI: 10.12989/sem.2022.82.6.691

A numerical study on vibration behavior of fiber-reinforced composite panels in thermal environments

Mouayed H.Z. Al-Toki, Hayder A.K. Ali, Ridha A. Ahmed, Nadhim M. Faleh and Raad M. Fenjan

Abstract

This paper is devoted to the presentation of a numerical study on vibration behavior of composite panels reinforced by glass fibres and carbon nanotubes (CNTs) subjected to thermal environments. The effect of temperature variation has been included as thermal load acting on in-plane direction of the panel. To model the composite material, a micromechanical model which contains random dispersion of nanotubes and single-direction fibers has been selected. The geometry of the panel has been considered to have a single curveture along its width. Based on the above assumptions, the governing equations have been derived by using thin shell theory capturing the panel curveture and also nonlinear deflections. Finally, the panel dependence on various factors such as the curveture, nanotube amount, fiber volume, fiber direction and temperature variation has been researched.

Key Words

fibre-reiforced composite; numerical method; shell theory; thermal load; vibrations

Address

Mouayed H.Z. Al-Toki: Technical College, Middle Technical University, Baghdad, Iraq Hayder A.K. Ali, Ridha A. Ahmed, Nadhim M. Faleh, Raad M. Fenjan: Engineering Collage, Al-Mustansiriah University, P.O. Box 46049, Bab-Muadum, Baghdad 10001, Iraq