Journal of Science  and Technology of Composites

Journal of Science and Technology of Composites

Vibration Analysis of doubly-curve composite nanoshells Carbon Nanotube Reinforced Using Novel Shear Theory

Document Type : Research Paper

Authors
School of Mechanical Engineering, Darion Azad University, Darion, Iran.
10.22068/jstc.2025.2064112.1923
Abstract
In this paper, the bending analysis of cylindrical nano shells under thermal-humidity loading is investigated based on the non local strain gradient theory. The temperature distribution changes linearly along the thickness. In order to increase the accuracy of the results, in this paper, the shear and bending effects of the nano shell in the thickness direction are considered independently. The main innovation of the paper is to consider the effects of bending, shear and thickness effect independently on the transverse displacement. In this article the equations of motion are obtained by considering non local effects using Hamilton's principle. Then, the obtained equations of motion are solved using the Navier method. The effect of parameters such as shell dimensions, its mechanical properties and non local parameter on the static deflection is analyzed. At the end, the simulation results show that the shear effects in the thickness direction play a vital role in the bending of functionally graded nano shells.
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