Forced Vibration Analysis of Dispersed Nano-CNT FRP Hybrid Composite Plate Using Refined Plate Theory

Abstract

Abstract In today's applications, such as aerospace, automotive, spacecraft, boats, sporting goods, and civil infrastructure, fiber reinforced composites, or FRP, are crucial. When synthetic fibers are manufactured, they may explode and release harmful substances that irritate the skin, eyes, and respiratory tract, among other things. Because natural fibers are biodegradable, they are used to counteract the effects of synthetic fibers. This study uses spider silk and flax fiber reinforced polymer composites, and to improve the mechanical properties, a small amount of carbon nanotubes (CNT) is added to the matrix and layer-wise hybridization is performed. The Mori-Tanaka method is used to determine the properties of CNT epoxy, and the Rule of Mixtures is used to determine the elastic properties of the lamina. To get the best structural design with the best performance characteristics, a thorough analysis of the composite structure's vibration behavior with various parameters is crucial. The vibration response of laminated hybrid composite plates under various boundary and loading conditions is studied using the refined plate theory, also known as the refined shear deformation theory (RPT). Hamilton's principle establishes the governing equations, and the Galerkin solution yields the solution. The influence of loading conditions, frequency ratio, CNT percentage variation, and boundary conditions is studied parametrically.