Author:
Al-Khazraji Mustafa S.,Jweeg M. J.,Bakhy S. H.
Abstract
Purpose
The purpose of this paper is to investigate the free vibration response of a laminated honeycomb sandwich panels (LHSP) for aerospace applications. Higher order shear deformation theory (HSDT) was simplified for the dynamic analysis of LHSP. Furthermore, the effects of honeycomb parameters on the value of natural frequency (NF) of vibration were explored.
Design/methodology/approach
This paper applies HSDT to the analysis of composite LHSP to derive four vibration differential equations of motion and solve it to find the NF of vibration. Two analytical models (Nayak and Meunier models) were selected from literature for comparison of the NF of vibration. In addition, a numerical model was built by using ABAQUS and the results were compared. Furthermore, parametric studies were conducted to explore the effect of honeycomb parameters on the value of the NF of vibration.
Findings
The present model is successful in simplifying HSDT for the analysis of LHSP. The first five natural frequencies of vibration were calculated analytically and numerically. In the parametric study, increasing core height or young’s modulus or changing laminate layup will increase the value of NF of vibration. Furthermore, increasing plate constraint (using clamped edge boundary condition) will increase the value of NF of vibrations.
Research limitations/implications
The current analysis is suitable for all-composite symmetric LHSP. However, for isotropic or non-symmetric materials, minor modifications might be adopted.
Originality/value
The application of simplified HSDT to the analysis of LHSP is one of the important values of this research. The other is the successful and complete dynamic analysis of all-composite LHSP.
Reference45 articles.
1. A simple higher order shear deformation theory for mechanical behavior of laminated composite plates;International Journal of Advanced Structural Engineering,2016
2. Alanbay, B. (2020), “Free vibrations and static deformations of composite laminates and sandwich plates using ritz method”, Doctoral dissertation, Virginia Tech.
3. Investigation of sandwich composite failure under three-point bending: simulation and experimental validation;Journal of Sandwich Structures and Materials,2020
4. Assessment of two analytical methods in solving the linear and nonlinear elastic beam deformation problems;Journal of Engineering, Design and Technology,2010
5. Energy loss due to unbalance in rotor–shaft system;Journal of Engineering, Design and Technology,2016
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献