Wave propagation of carbon nanotubes embedded in an elastic medium
Wave propagation of carbon nanotubes embedded in an elastic medium
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DOI：
10.1063/1.1849823
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发表时间：
2005-02-15
影响因子：
3.2
通讯作者：
Endo, M
中科院分区：
文献类型：
--
作者：
Natsuki, T;Hayashi, T;Endo, M
本文提出了单壁碳纳米管和双壁碳纳米管以及嵌入弹性矩阵的碳纳米管中波传播的解析模型。纳米管结构在多层薄壳近似中处理，具有与石墨烯片相同的弹性特性。双壁纳米管通过内外纳米管之间的范德华力耦合在一起。对于嵌套在弹性基体中的碳纳米管，其周围的弹性介质可用Winkler模型来描述。基于弹性连续介质模型，可以对对称和非对称两种模式的管波传播进行分析。结果表明，单壁纳米管和双壁纳米管的不对称波行为有显著差异。这种行为也不同于周围弹性介质中的行为。(C) 2005美国物理研究所。
This paper presents analytical models of wave propagation in single- and double-walled carbon nanotubes, as well as nanotubes embedded in an elastic matrix. The nanotube structures are treated within the multilayer thin shell approximation with the elastic properties taken to be those of the graphene sheet. The double-walled nanotubes are coupled together through the van der Waals force between the inner and outer nanotubes. For carbon nanotubes embedded in an elastic matrix, the surrounding elastic medium can be described by a Winkler model. Tube wave propagation of both symmetrical and asymmetrical modes can be analyzed based on the present elastic continuum model. It is found that the asymmetrical wave behavior of single- and double-walled nanotubes is significantly different. The behavior is also different from that in the surrounding elastic medium. (C) 2005 American Institute of Physics.