Critical Strain of Carbon Nanotube by Structural Mechanics Approach

TANG Wen-yan; YUAN Qing-ke

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Critical Strain of Carbon Nanotube by Structural Mechanics Approach

更新时间：2026-05-27

- Critical Strain of Carbon Nanotube by Structural Mechanics Approach
- Vol. 24, Issue 2, Pages: 60-63(2007)
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- Online First：02 July 2007，
  
  Published：2007
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唐文艳, 袁清珂. 结构力学法求解碳纳米管的临界应变[J]. 广东工业大学学报, 2007, 24(2): 60-63.

TANG Wen-yan, YUAN Qing-ke. Critical Strain of Carbon Nanotube by Structural Mechanics Approach[J]. 2007, 24(2): 60-63.
唐文艳, 袁清珂. 结构力学法求解碳纳米管的临界应变[J]. 广东工业大学学报, 2007, 24(2): 60-63. DOI：

TANG Wen-yan, YUAN Qing-ke. Critical Strain of Carbon Nanotube by Structural Mechanics Approach[J]. 2007, 24(2): 60-63. DOI：

摘要

采用宏观的力学模型

研究了具有不同长径比的锯齿型和扶手椅型碳纳米管的屈曲变形.其结果表明在长径比不变的情况下

随着碳纳米管半径的增加

临界应变值降低;长径比对临界应变有重要的影响;对于小的长径比

连续体壳理论是有效的

但是随着长径比的增加

碳纳米管半径小于0.8 mm的情况下

出现了分歧.因此宏观力学框架模型能有效地模拟碳纳米管的屈曲

预测临界应变.

Abstract

The paper investigates buckling deformation of armchair and zigzag nanotubes with different length-radius ratio(H/R).The results show that the critical strain decreases as the radius increases with certain length-radius ratio nanotubes;length-radius ratio has important effect on the critical strain;for small length-radius ratio

the continuum shell theory is valid

but as length-radius ratio increases and at the radius of less than 0.8 nm

the divergence appears.So macroscopic mechanics frame model...

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references

钱浩,徐凯宇. 考虑范德华力曲率效应的双壁碳纳米管外压屈曲[J]. 力学季刊. 2005(04)

辛浩,韩强,梁颖晶,黄小清. 轴压作用下双层碳纳米管屈曲问题的数值分析[J]. 暨南大学学报(自然科学与医学版). 2005(01)

王宇,王秀喜,倪向贵,吴恒安. 单壁碳纳米管轴向压缩变形的研究[J]. 物理学报. 2003(12)

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