中国物理B ›› 2003, Vol. 12 ›› Issue (9): 1007-1010.doi: 10.1088/1009-1963/12/9/315

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Effect of temperature on deformation of carbon nanotube under compression

王宇, 倪向贵, 王秀喜, 吴恒安   

  1. Key Laboratory of Mechanical Behaviour and Design of Materials, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:2003-02-17 修回日期:2003-03-18 出版日期:2005-03-16 发布日期:2005-03-16
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10172081), and the Youth Foundation of University of Science and Technology of China.

Effect of temperature on deformation of carbon nanotube under compression

Wang Yu (王宇), Ni Xiang-Gui (倪向贵), Wang Xiu-Xi (王秀喜), Wu Heng-An (吴恒安)   

  1. Key Laboratory of Mechanical Behaviour and Design of Materials, University of Science and Technology of China, Hefei 230026, China
  • Received:2003-02-17 Revised:2003-03-18 Online:2005-03-16 Published:2005-03-16
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10172081), and the Youth Foundation of University of Science and Technology of China.

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摘要： The mechanical behaviour of carbon nanotubes is one of the basic research fields on the nanotube composites and nano machinery. Molecular dynamics is an effective way for investigating the behaviour of nano structure. The compression deformation of carbon nanotubes (CNTs) under different temperature is simulated, by using the Tersoff－Brenner potential to describe the interactions in CNTs. The results show that thermal fluctuations may induce the strained CNT to overcome the local energy barrier and develop the plastic deformation.

Abstract: The mechanical behaviour of carbon nanotubes is one of the basic research fields on the nanotube composites and nano machinery. Molecular dynamics is an effective way for investigating the behaviour of nano structure. The compression deformation of carbon nanotubes (CNTs) under different temperature is simulated, by using the Tersoff－Brenner potential to describe the interactions in CNTs. The results show that thermal fluctuations may induce the strained CNT to overcome the local energy barrier and develop the plastic deformation.

Key words: carbon nanotube, molecular dynamics, plastic deformation

中图分类号:  (Mechanical properties of nanoscale systems)

  • 62.25.-g
62.20.F- (Deformation and plasticity)