| 多壁碳纳米管弯曲导致的扭转 |
| |
| 引用本文： | 李晓雁,杨卫.多壁碳纳米管弯曲导致的扭转[J].物理,2007,36(9):664-666. |
| |
| 作者姓名： | 李晓雁 杨卫 |
| |
| 作者单位： | 清华大学工程力学系,北京,100084 |
| |
| 基金项目： | 国家重点基础研究发展计划(973计划);国家自然科学基金 |
| |
| 摘 要： | 文章介绍了多壁碳纳米管弯曲的分子动力学模拟,从原子尺度上解释了由于屈曲失稳而导致的起皱现象,并发现多壁碳纳米管弯曲时会呈现出非线性的力学响应。同时,在模拟过程中,观察到了弯曲诱发扭转的现象,并揭示出扭转变形的内在起因是曲率诱导的晶格错配。
|
| 关 键 词： | 多壁碳纳米管 起皱 扭转 分子动力学 |
| 修稿时间： | 2007-07-02 |
Twisting induced by bending of multiwalled carbon nanotubes |
| |
| LI Xiao-Yan,YANG Wei.Twisting induced by bending of multiwalled carbon nanotubes[J].Physics,2007,36(9):664-666. |
| |
| Authors: | LI Xiao-Yan YANG Wei |
| |
| Institution: | Department of Engineering Mechanics of Tsinghua University, Beijing 100084 ,China |
| |
| Abstract: | We present recent molecular dynamics simulations for bending of multiwalled carbon nanotubes.The rippling caused by the buckling is described at the atomistic level.It is demonstrated that such nanotubes exhibit nonlinear mechanical responses when subjected to bending deformations.Notably,a twisting mode arising from curvature-induced lattice mismatch emerges with the rippling in the bent nanotubes. |
| |
| Keywords: | multiwalled carbon nanotubes rippling twisting molecular dynamics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
