Journal
COMPUTATIONAL MATERIALS SCIENCE
Volume 45, Issue 2, Pages 584-588Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.commatsci.2008.12.006
Keywords
Carbon nanotube conveying fluid; Small length scale; Natural frequency; Critical flow velocity; Instability
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Funding
- National Natural Science Foundation of China [10772071, 10802031]
- Scientific Research Foundation of HUST [2006Q003B]
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Based on theory of nonlocal elasticity, a nonlocal double-elastic beam model is developed for the vibration analysis of double-walled carbon nanotubes (DWCNTs) conveying fluid. The effect of small length scale is incorporated in the formulation. The natural frequency and critical flow velocity for the case of simply supported DWCNTs conveying fluid are obtained. The effect of small length scale on the properties of vibration and instability is discussed. It is demonstrated that the natural frequencies of DWCNTs conveying, fluid are dependent upon the small length scale. However, the effect of small length scale on the critical flow velocities can be neglected. (c) 2008 Elsevier B.V. All rights reserved.
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