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Structural Engineering and Mechanics Volume 70, Number 6, June25 2019 , pages 683-702 DOI: https://doi.org/10.12989/sem.2019.70.6.683 |
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Free vibration analysis of thick cylindrical MEE composite shells reinforced CNTs with temperature-dependent properties resting on viscoelastic foundation |
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Mehdi Mohammadimehr, Ehsan Arshid, Seyed Mohammad Amin Rasti Alhosseini,
Saeed Amir and Mohammad Reza Ghorbanpour Arani
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Abstract | ||
The present study aims to analyze the magneto-electro-elastic (MEE) vibration of a functionally graded carbon nanotubes reinforced composites (FG-CNTRC) cylindrical shell. Electro-magnetic loads are applied to the structure and it is located on an elastic foundation which is simulated by visco-Pasternak type. The properties of the nano-composite shell are assumed to be varied by temperature changes. The third-order shear deformation shells theory is used to describe the displacement components and Hamilton\'s principle is employed to derive the motion differential equations. To obtain the results, Navier\'s method is used as an analytical solution for simply supported boundary condition and the effect of different parameters such as temperature variations, orientation angle, volume fraction of CNTs, different types of elastic foundation and other prominent parameters on the natural frequencies of the structure are considered and discussed in details. Design more functional structures subjected to multi-physical fields is of applications of this study results. | ||
Key Words | ||
vibration analysis; third-order shear deformation theory; cylindrical shell; carbon nanotubes; electro-magnetic loads; Visco-Pasternak foundation | ||
Address | ||
Mehdi Mohammadimehr, Ehsan Arshid, Seyed Mohammad Amin Rasti Alhosseini, Saeed Amir: Department of Solid Mechanics, Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran Mohammad Reza Ghorbanpour Arani: Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran | ||