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国际多尺度计算工程期刊
影响因子: 1.016 5年影响因子: 1.194 SJR: 0.554 SNIP: 0.68 CiteScore™: 1.18

ISSN 打印: 1543-1649
ISSN 在线: 1940-4352

国际多尺度计算工程期刊

DOI: 10.1615/IntJMultCompEng.2015013784
pages 443-461

ELECTRO-THERMO-MECHANICAL VIBRATION ANALYSIS OF EMBEDDED SINGLE-WALLED BORON NITRIDE NANOTUBES BASED ON NONLOCAL THIRD-ORDER BEAM THEORY

Majid Ghadiri
Faculty of Engineering, Department of Mechanics, Imam Khomeini International University, Postal code: 3414916818, Qazvin, Iran
Farzad Ebrahimi
Faculty of Engineering, Department of Mechanics, Imam Khomeini International University, Postal code: 3414916818, Qazvin, Iran
E. Salari
Faculty of Engineering, Department of Mechanics, Imam Khomeini International University, Postal code: 3414916818, Qazvin, Iran
S. A. H. Hosseini
Department of Mechanical Engineering, University of Zanjan, Zanjan, Iran
G. R. Shaghaghi
Faculty of Engineering, Department of Mechanics, Imam Khomeini International University, Postal code: 3414916818, Qazvin, Iran

ABSTRACT

In this article, single-walled boron nitride nanotube (SWBNNT) vibration behavior is investigated based on nonlocal elasticity theory. The SWBNNT is analyzed as a nanobeam based on higher order shear deformation theory. Loading is composed of temperature change and axially external electric potential field. SWBNNT is embedded in a Winkler foundation. The governing equation and boundary conditions are derived by using the Hamilton principle. The analytical and differential transform (DT) methods are applied to determind natural frequency of the SWBNNT with different boundary conditions. The obtained results show good agreement with these cited in the literature. Also, comparison between the results of DT and analytical methods reveals the accuracy of the DT method. At the end, it is shown that temperature change, slenderness ratio, electric potential field, elastic foundation constant, and nonlocal parameters have a significant effect on natural frequency values.


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