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Advances in Nano Research Volume 9, Number 3, October 2020 , pages 193-210 DOI: https://doi.org/10.12989/anr.2020.9.3.193 |
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Several models for bending and buckling behaviors of FG-CNTRCs with piezoelectric layers including size effects |
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Farshad Heidari, Ahmad Afsari and Maziar Janghorban
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| Abstract | ||
| In this research, beside presenting real images of produced Functionally Graded Carbon Nanotube-Reinforced Composites (FG-CNTRCs) and a brief review of the synthesis method of FG-CNTRCs, static and buckling analysis of FG-CNTRC with piezoelectric layers are investigated. It is assumed that the material properties of FG-CNTRC are varied through the thickness direction using four different distributions of Carbon Nanotubes (CNTs). To capture the size effects, nonlocal elasticity theory proposed by A.C. Eringen is also adopted in our model. One of the topics in our paper is using a higher order theory with eight different displacement fields and comparing their results with each other. To solve the governing equations, an analytical method is used to find the deflections and critical buckling loads of FG-CNTRCs. To show the accuracy of present methodology, our results are compared with the results of simply supported rectangular nano plates available in the literature. In this research, the effects of aspect ratio, piezoelectric layer and nonlocal parameter are also studied. It is hoped that this work leads to more accurate models on FG-CNTRC. | ||
| Key Words | ||
| functionally graded carbon nanotube-reinforced composite; nonlocal elasticity theory; bending; buckling; higher order shear deformation theory; Eight different displacement fields; piezoelectric layer | ||
| Address | ||
| (1) Farshad Heidari, Ahmad Afsari: Department of Mechanical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran (2) Maziar Janghorban: Department of Mechanical Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran | ||