A structural mechanics approach for predicting the mechanical properties of carbon nanotubes

被引:54
|
作者
Wan, H. [1 ]
Delale, F. [1 ]
机构
[1] CUNY City Coll, Dept Mech Engn, New York, NY 10031 USA
关键词
Carbon nanotubes; Mechanical properties; Young's modulus; Bending stiffness; Buckling; ELASTIC PROPERTIES; SINGLE-WALL;
D O I
10.1007/s11012-009-9222-2
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Based on molecular mechanics, a structural mechanics model of carbon nanotubes (CNTs) was developed with special consideration given to the bending stiffness of the graphite layer. The potentials associated with the atomic interactions within a CNT were evaluated by the strain energies of beam elements which serve as structural substitutions of covalent bonds in a CNT. In contrast to the original model developed by Li and Chou (Int. J. Solids Struct. 40(10):2487-2499, 2003), in the current model the out-of-plane deformation (inversion) of the bond was distinguished from the in-plane deformation by considering a rectangular cross-section for the beam element. Consequently, the model is able to study problems where the effect of local bending of the graphite layer in a carbon nanotube is significant. A closed-form solution of the sectional properties of the beam element was derived analytically. The model was verified through the analysis of rolling a graphite sheet into a carbon nanotube. Using the present model, the buckling behavior of nanotubes under bending is simulated. The predicted critical bending angle agrees well with molecular dynamics simulations.
引用
收藏
页码:43 / 51
页数:9
相关论文
共 50 条
  • [31] Mechanical properties of polygonal carbon nanotubes
    Huang, Ling
    Cao, Dapeng
    NANOSCALE, 2012, 4 (17) : 5420 - 5424
  • [32] Mechanical Properties of Carbon Nanotubes Composites
    Hui, David
    Chipara, Mircea
    Sankar, Jagannathan
    Lau, K. T.
    JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE, 2004, 1 (02) : 204 - 215
  • [33] Predicting mechanical properties of fuzzy fiber reinforced composites: radially grown carbon nanotubes on the carbon fiber
    Roham Rafiee
    Amin Ghorbanhosseini
    International Journal of Mechanics and Materials in Design, 2018, 14 : 37 - 50
  • [34] Mechanical and thermal properties of carbon nanotubes
    SRI Int, Menlo Park, United States
    Carbon, 7 (925-930):
  • [35] Elastic and mechanical properties of carbon nanotubes
    Synth Met, 1 -3 pt 3 (2500-2501):
  • [36] Mechanical properties of functionalized carbon nanotubes
    Zhang, Z. Q.
    Liu, B.
    Chen, Y. L.
    Jiang, H.
    Hwang, K. C.
    Huang, Y.
    NANOTECHNOLOGY, 2008, 19 (39)
  • [37] Effect of Carbon Nanotubes on the Mechanical Properties of Carbon Nanotubes/Hydroxyapatite Composites
    Xiao Zhen-Kun
    Wu Lei
    Mi Rao
    Fang Qing
    Song Xiao-Lan
    Lu Xiao-Ying
    Weng Jie
    CHINESE JOURNAL OF INORGANIC CHEMISTRY, 2015, 31 (01) : 114 - 120
  • [38] Molecular mechanics of structural properties of boron nitride nanotubes
    Moon, WH
    Hwang, HJ
    PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2004, 23 (1-2): : 26 - 30
  • [39] Structural and electronic properties of carbon nanotubes
    Erkoç, S
    INTERNATIONAL JOURNAL OF MODERN PHYSICS C, 2000, 11 (01): : 175 - 182
  • [40] Predicting properties of carbon nanotubes: Nanowires with a twist
    White, CT
    Mintmire, JW
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2003, 225 : U704 - U704