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http://dx.doi.org/10.5050/KSNVE.2010.20.9.805

Flow-induced Instability of Multi-wall Carbon Nanotubes for Various Boundary Conditions  

Yun, Kyung-Jae (국방과학연구소)
Song, Oh-Seop (충남대학교 기계공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.20, no.9, 2010 , pp. 805-815 More about this Journal
Abstract
This paper studies the influence of internal moving fluid and flow-induced structural instability of multi-wall carbon nanotubes conveying fluid. Detailed results are demonstrated for the variation of natural frequencies with flow velocity, and the flow-induced divergence and flutter instability characteristics of multi-wall carbon nanotubes conveying fluid and modelled as a thin-walled beam are investigated. Effects of various boundary conditions, Van der Waals forces, and non-classical transverse shear and rotary inertia are incorporated in this study. The governing equations and three different boundary conditions are derived through Hamilton's principle. Numerical analysis is performed by using extended Galerkin's method which enables us to obtain more exact solutions compared with conventional Galerkin's method. This paper also presents the comparison between the characteristics of single-wall and multi-wall carbon nanotubes considering the effect of van der Waals forces. Variations of critical flow velocity for different boundary conditions of two-wall carbon nanotubes are investigated and pertinent conclusion is outlined.
Keywords
Multi-wall Carbon Nanotubes; Flutter; Divergence; Critical Flow Velocity; Boundary Conditions; Van der Waals Forces;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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