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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Effects of initial stress on wave propagation in multi-walled carbon nanotubes
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Effects of initial stress on wave propagation in multi-walled carbon nanotubes

机译：初始应力对多壁碳纳米管中波传播的影响

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摘要

This paper reports the result of an investigation on the effect of initial stress on wave propagation in multi-walled carbon nanotubes (MWNTs). The initial stress in MWNTs often occurs due to thermal or lattice mismatch between different materials. Using a laminated beam model and considering the interaction of van der Waals forces between two adjacent nanotubes, the effects of initial stress in MWNTs on the number of wave speeds and the vibration amplitude ratio between the two adjacent tubes are described. It is noticed that the number of terahertz waves in MWNTs with initial stress not only depends on the response frequency and the noncoaxial vibrational modes, but also depends on the initial stress in the MWNTs.
机译：本文报道了初始应力对多壁碳纳米管（MWNTs）中波传播的影响的研究结果。 MWNT中的初始应力通常是由于不同材料之间的热或晶格失配而发生的。使用叠层梁模型并考虑两个相邻纳米管之间的范德华力的相互作用，描述了MWNT中初始应力对波速数和两个相邻管之间的振动振幅比的影响。注意到，具有初始应力的MWNT中太赫兹波的数量不仅取决于响应频率和非同轴振动模式，而且还取决于MWNT中的初始应力。

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