### Abstract

This paper employs the atomic-scale finite element method to study bending buckling of single-walled carbon nanotubes (SWNTs). As the bending angle increases, kinks will appear and the morphology of the SWNT will change abruptly. The (15, 0) SWNT changes into a one-kinked structure, and finally contains two kinks; while the (10, 0) SWNT changes into a one-kinked structure, then into a two-kinked one, and finally contains three kinks. Strain energy grows initially as a quadratic function of bending angle, then increases gradually slowly, and finally changes approximately linearly. The energy releases suddenly at morphology bifurcations and the amount depends on degree of morphology change. The simulation shows that the appearance of kinks associated with the large deformation nearby reduces the slope of the strain energy curve in the post-buckling stages and hence increases the flexibility of the SWNTs.

Original language | English (US) |
---|---|

Pages (from-to) | 202-208 |

Number of pages | 7 |

Journal | Composites Part B: Engineering |

Volume | 39 |

Issue number | 1 |

DOIs | |

State | Published - Jan 1 2008 |

### Fingerprint

### Keywords

- A. Nano-structures
- B. Buckling
- C. Computational modelling
- Morphology change

### ASJC Scopus subject areas

- Ceramics and Composites
- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering

### Cite this

*Composites Part B: Engineering*,

*39*(1), 202-208. https://doi.org/10.1016/j.compositesb.2007.02.025

}

*Composites Part B: Engineering*, vol. 39, no. 1, pp. 202-208. https://doi.org/10.1016/j.compositesb.2007.02.025

**Bending buckling of single-walled carbon nanotubes by atomic-scale finite element.** / Guo, X.; Leung, A. Y T; He, X. Q.; Jiang, H.; Huang, Y.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Bending buckling of single-walled carbon nanotubes by atomic-scale finite element

AU - Guo, X.

AU - Leung, A. Y T

AU - He, X. Q.

AU - Jiang, H.

AU - Huang, Y.

PY - 2008/1/1

Y1 - 2008/1/1

N2 - This paper employs the atomic-scale finite element method to study bending buckling of single-walled carbon nanotubes (SWNTs). As the bending angle increases, kinks will appear and the morphology of the SWNT will change abruptly. The (15, 0) SWNT changes into a one-kinked structure, and finally contains two kinks; while the (10, 0) SWNT changes into a one-kinked structure, then into a two-kinked one, and finally contains three kinks. Strain energy grows initially as a quadratic function of bending angle, then increases gradually slowly, and finally changes approximately linearly. The energy releases suddenly at morphology bifurcations and the amount depends on degree of morphology change. The simulation shows that the appearance of kinks associated with the large deformation nearby reduces the slope of the strain energy curve in the post-buckling stages and hence increases the flexibility of the SWNTs.

AB - This paper employs the atomic-scale finite element method to study bending buckling of single-walled carbon nanotubes (SWNTs). As the bending angle increases, kinks will appear and the morphology of the SWNT will change abruptly. The (15, 0) SWNT changes into a one-kinked structure, and finally contains two kinks; while the (10, 0) SWNT changes into a one-kinked structure, then into a two-kinked one, and finally contains three kinks. Strain energy grows initially as a quadratic function of bending angle, then increases gradually slowly, and finally changes approximately linearly. The energy releases suddenly at morphology bifurcations and the amount depends on degree of morphology change. The simulation shows that the appearance of kinks associated with the large deformation nearby reduces the slope of the strain energy curve in the post-buckling stages and hence increases the flexibility of the SWNTs.

KW - A. Nano-structures

KW - B. Buckling

KW - C. Computational modelling

KW - Morphology change

UR - http://www.scopus.com/inward/record.url?scp=35548997852&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=35548997852&partnerID=8YFLogxK

U2 - 10.1016/j.compositesb.2007.02.025

DO - 10.1016/j.compositesb.2007.02.025

M3 - Article

AN - SCOPUS:35548997852

VL - 39

SP - 202

EP - 208

JO - Composites Part B: Engineering

JF - Composites Part B: Engineering

SN - 1359-8368

IS - 1

ER -