Knowledge Management System of Institue of Mechanics, CAS
| The Stability of a Vertical Single-Walled Carbon Nanotube Under Its Own Weight | |
Wang GW(王根伟) ; Zhao YP(赵亚溥); Yang GT; Zhao, YP (reprint author), Chinese Acad Sci, Inst Mech, LNM, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
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| Source Publication | Materials and Design
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| 2004 | |
| Volume | 25Issue:6Pages:453-457 |
| ISSN | 0261-3069 |
| Abstract | It has been reported recently that single carbon nanotubes were attached to AFM tips to act as nanotweezers. In order to investigate its stability, a vertical single-walled carbon nanotube (SWCNT) under its own weight is studied in this paper. The lower end of the carbon nanotube is clamped. Firstly the governing dimensionless numbers are derived by dimensional analysis. Then the theoretical analysis based on an elastic column model is carried out. Two ratios, I.e., the ratio of half wall thickness to radius (t=R) and the ratio of gravity to elastic resilience ($\rho$gR=E), and their influences on the ratio of critical length to radius are discussed. It is found that the relationship between the critical ratio of altitude to radius and ratio of half thickness to radius is approximately linear. As the dimensionless number $\rho$gR=E increases, the compressive force per unit length (weight) becomes larger, thus critical ratio of altitude to radius must become smaller to maintain stability. At last the critical length of SWCNT is calculated. The results of this paper will be helpful for the stability design of nanotweezers-like nanostructures. |
| Subject Area | 力学 |
| DOI | 10.1016/j.matdes.2004.01.003 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000222440700001 |
| WOS Keyword | NANOMECHANICS ; DESIGN |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/17209 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Zhao, YP (reprint author), Chinese Acad Sci, Inst Mech, LNM, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. |
| Recommended Citation GB/T 7714 | Wang GW,Zhao YP,Yang GT,et al. The Stability of a Vertical Single-Walled Carbon Nanotube Under Its Own Weight[J]. Materials and Design,2004,25,6,:453-457. |
| APA | 王根伟,赵亚溥,Yang GT,&Zhao, YP .(2004).The Stability of a Vertical Single-Walled Carbon Nanotube Under Its Own Weight.Materials and Design,25(6),453-457. |
| MLA | 王根伟,et al."The Stability of a Vertical Single-Walled Carbon Nanotube Under Its Own Weight".Materials and Design 25.6(2004):453-457. |
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