| 单壁碳纳米管的扭转力学特性研究 |
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| 引用本文： | 王晋宝,田美灵,谢永和,张洪武,郭旭.单壁碳纳米管的扭转力学特性研究[J].计算力学学报,2009,26(3):307-311. |
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| 作者姓名： | 王晋宝 田美灵 谢永和 张洪武 郭旭 |
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| 作者单位： | 1. 浙江海洋学院,船舶与建筑工程学院,舟山316000
2. 大连理工大学,工业装备结构分析国家重点实验室,工程力学系,大连,116023 |
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| 基金项目： | 国家自然科学基金，校级项目 |
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| 摘 要： | 利用基于高阶Cauchy-Born准则所建立的单壁碳纳米管本构模型,针对不同手性的单壁碳纳米管的扭转力学特性进行了研究.研究发现结构呈现对称性的锯齿型和扶手型单壁碳纳米管具有完全对称的扭转特性,而结构不对称的手性型单壁碳纳米管具有正反相异的扭转特性.同时,针对一系列手性不同的单壁碳纳米管的扭转力学特性展开了详细的研究.研究的部分结果与采用其他方法得到的结果进行了对比,证实了所提出方法以及预测结果的有效性和可行性.
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| 关 键 词： | 碳纳米管 高阶Cauchy-Born准则 扭转特性 |
| 收稿时间： | 8/8/2008 12:00:00 AM |
Study of the torsional properties of single-walled carbon nanotubes |
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| WANG Jin-bao,TIAN Mei-ling,XIE Yong-he,ZHANG Hong-wu and GUO Xu.Study of the torsional properties of single-walled carbon nanotubes[J].Chinese Journal of Computational Mechanics,2009,26(3):307-311. |
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| Authors: | WANG Jin-bao TIAN Mei-ling XIE Yong-he ZHANG Hong-wu and GUO Xu |
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| Institution: | School of Naval Architecture & Civil Engineering, Zhejiang Ocean University, Zhoushan 316000, China;School of Naval Architecture & Civil Engineering, Zhejiang Ocean University, Zhoushan 316000, China;School of Naval Architecture & Civil Engineering, Zhejiang Ocean University, Zhoushan 316000, China;Department of Engineering Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116023, China;Department of Engineering Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116023, China |
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| Abstract: | In this contribution we study the torsional properties for the different chiral single-walled carbon nanotube (SWCNT) based on the constitutive model established by the higher-order Cauchy-Born rule. The present investigation shows that the symmetric torsional properties existed in armchair and zigzag SWCNTs which are symmetric in structure. However, it is not the case for chiral SWCNTs which are non-symmetric in structure. Also, the shear modulus is investigated for a serial of different chiral SWCNTs in detail. The good comparison between part of the present results and that from literatures verifies the availability of the present model and the obtained results. |
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| Keywords: | carbon nanotube higher-order Cauchy-Born rule torsional properties |
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