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首页> 外文期刊>Journal of nano research >Critical Buckling Load of Triple-Walled Carbon Nanotube Based on Nonlocal Elasticity Theory
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Critical Buckling Load of Triple-Walled Carbon Nanotube Based on Nonlocal Elasticity Theory

机译：基于非识别弹性理论的三壁碳纳米管的关键屈曲负荷

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摘要

The present paper investigates the nonlocal buckling of Zigzag Triple-walled carbon nanotubes (TWCNTs) under axial compression with both chirality and small scale effects. Based on the nonlocal continuum theory and the Timoshenko beam model, the governing equations are derived and the critical buckling loads under axial compression are obtained. The TWCNTs are considered as three nanotube shells coupled through the van der Waals interaction between them. The results show that the critical buckling load can be overestimated by the local beam model if the small-scale effect is overlooked for long nanotubes. Also, a significant dependence of the critical buckling loads on the chirality of zigzag carbon nanotube is confirmed, and these are then compared with: A single-walled carbon nanotubes (SWCNTs); and double-walled carbon nanotubes (DWCNTs). These findings are important in mechanical design considerations and reinforcement of devices that use carbon nanotubes.
机译：本文在轴向压缩下调查了Zigzag三壁碳纳米管（TWCNT）的非絮凝剂屈曲，具有手性和小规模效应。基于非局部连续因素理论和Timoshenko光束模型，得到控制方程，获得轴向压缩下的关键屈曲负载。 TWCNT被认为是通过van der Wa的三个纳米管壳，它们之间的van der Wa互加相互作用。结果表明，如果对于长纳米管忽略小规模效应，则临界屈曲负荷可以被局部光束模型高估。而且，确认了临界屈曲负荷对Zigzag碳纳米管的手性的显着依赖性，然后与：单壁碳纳米管（SWCNTS）进行比较。和双壁碳纳米管（DWCNT）。这些发现在机械设计考虑和使用碳纳米管的装置的加固方面都很重要。

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