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Nonlocal Vibration of Carbon/Boron-Nitride Nano-hetero-structure in Thermal and Magnetic Fields by means of Nonlinear Finite Element Method
Abstract
Hybrid nanotubes composed of carbon and boron-nitride nanotubes have manifested as innovative building blocks to exploit the exceptional features of both structures simultaneously. On the other hand, by mixing with other types of materials, the fabrication of relatively large nanotubes would be feasible in the case of macroscale applications. In the current article, a nonlinear finite element formulation is employed to deal with the nonlocal vibrational behavior of carbon/boron-nitride nano-hetero-tubes in the presence of magneto-thermal environment. Euler-Bernoulli beam model in conjunction with the Eringen's nonlocal theory of elasticity is adopted to derive the governing equation of motion. In order to conduct a nonlinear frequency analysis, the von-Kármán nonlinearity associated with moderate rotations is also considered. It is well-known that temperature gradients can significantly change the dynamic behavior of nanotubes. On the other hand, the coefficients of thermal expansions of carbon and boron-nitride nanotubes are quite different which may affect the structural stability of hybrid nanotubes. Hence, to explore the vibration characteristic of such composite structures, the influence of magneto-thermal environment is also taken into account. Finally, the eigenvalue analysis is performed to exhibit the nonlinear mode shapes and natural frequencies of the system due to initial displacement. It is expected that the recognition of dynamic behavior of such hybrid nanotubes may open the doors to the creative design of next-generation nanodevices.
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Authors (4)
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Hamid M. Sedighi Dr.
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Ali Valipour PhD
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Krzysztof Kamil Żur PhD
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Journal of Machinery Manufacture and Reliability
no. 7,
pages 591 - 602,
ISSN: 1052-6188 - Language:
- English
- Publication year:
- 2020
- Bibliographic description:
- Sedighi H. M., Malikan M., Valipour A., Kamil Żur K.: Nonlocal Vibration of Carbon/Boron-Nitride Nano-hetero-structure in Thermal and Magnetic Fields by means of Nonlinear Finite Element Method// Journal of Computational Design and Engineering -Vol. 7,iss. 5 (2020), s.591-602
- DOI:
- Digital Object Identifier (open in new tab) 10.1093/jcde/qwaa041
- Verified by:
- Gdańsk University of Technology
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