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Nonlinear Deformation Processes and Damage Modes of Super Carbon Nanotubes with Armchair-Armchair Topology |
| CHEN Yu-Li1, LIU Bin1,2, YIN Ya-Jun1, HUANG Yong-Gang3, HWUANG Keh-Chih1 |
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1FML, Department of Engineering Mechanics, Tsinghua University, Beijing 1000842State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 1160233Department of Civil and Environmental Engineering and Department of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208, USA |
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| Cite this article: |
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CHEN Yu-Li, LIU Bin, YIN Ya-Jun et al 2008 Chin. Phys. Lett. 25 2577-2580 |
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Abstract The tensile deformations and fractures of super carbon nanotubes (SCNTs) with armchair-armchair topology are investigated by using the atomic-scale finite element method. SCNTs generated from carbon nanotubes (CNTs) with different characteristic aspect ratios are found to have different nonlinear behaviours under uniaxial tensions. Specifically, an SCNT with higher aspect ratio has three distinct stages: rotation, stretch and rupture, while an SCNT with lower aspect ratio has only two stages. This information may compensate for previous work and enrich our knowledge about Y-branched CNTs and SCNTs
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| Keywords:
61.46.Fg
81.07.De
61.46.-w
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Received: 27 March 2008
Published: 26 June 2008
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