Effect of Carbon Nanotubes and Porosity on Vibrational Behavior of Nanocomposite Structures: A Review

Abstract

This paper aims to present a comprehensive review of the effect of embedding porosity and enhancing with carbon nanotube (CNT) on the vibrational behavior of composite structures. This type of material belongs to the famous family of composites materials that have promising mechanical properties that can be scientifically manipulated and gradually changed into the desired directions and orientations. Due to this varying, the composite properties give more flexible and huge applications in industrial processing materials. Functionally graded materials (FGM) with reinforced CNTs have attracted more researchers to hugely investigate and many publications have been done so far. This study will mainly focus on the effect of porosity and CNT on vibrations of composite structures. For CNTs reinforced composite, CNTs volume fraction effect, methods and methodologies applied by various researchers and types and different geometric shapes will be reviewed. Similarly, the researchers have examined the influence of porosity on to the vibrational behavior of composite materials. Porous materials are members of a novel class of lightweight materials and they are designed to have continuously changeable mechanical properties along a smooth and certain direction which could be provided through the introduction of a graded porosity distribution along the thickness direction of the plates. A comprehensive examination of the influence of porosity distribution, porosity coefficient, and geometric parameters of different materials will be discussed.