Journal of South China University of Technology(Natural Science Edition) ›› 2012, Vol. 40 ›› Issue (7): 113-116.

• Materials Science & Technology • Previous Articles     Next Articles

Bending of Carbon Nanotubes Subjected to Concentrated Load and Corresponding Molecular Dynamics Simulation

Liang Ying-jing  Han Qiang   

  1. School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2012-02-29 Revised:2012-05-15 Online:2012-07-25 Published:2012-06-01
  • Contact: 韩强(1963-)，男，教授，博士生导师，主要从事纳米力学研究． E-mail: emqhan@scut．edu．cn E-mail:liangingjing@126.com
  • About author:梁颖晶(1981-) ，女，博士生，主要从事纳米力学研究．
  • Supported by:

    广东省自然科学基金资助项目( 10151064101000062)

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Abstract:

In this paper,the bending problem of cantilever carbon nanotubes ( CNTs) subjected to concentrated load is investigated by elastic shell model based on semi-moment theory,and the corresponding analytical expressions of the stress and the displacement are derived,which are then verified by the molecular dynamics simulation. It is found that,for both the zigzag CNTs with a length-to-diameter ratio of 5.2 ～ 12.0 and the armchair CNTs with a length-to-diameter ratio of 5.5 ～ 18.0,the theoretical results coincide well with the simulated ones.

Key words: carbon nanotube, bending, semi-moment theory, molecular dynamics