Abstract In this paper torsional deformation of the carbon nanotubes is simulated by molecular dynamics method. The Brenner potential is used to set up thesimulation system. Simulation results show that the carbon nanotubes can bear larger torsional deformation, for the armchair type (10,10) single wall carbon nanotubes, with a yielding phenomenon taking place when the torsional angle is up to 63$^{\circ}$(1.1rad). The influence of carbon nanotube helicity in torsional deformation is very small. The shear modulus of single wall carbon nanotubes should be several hundred GPa, not 1 GPa as others reports.
Received: 28 May 2005
Revised: 20 March 2006
Accepted manuscript online:
Fund: Project
supported by the National Natural Science Foundation of China (Grant
No 50405011) and the Natural Science Foundation of Heilongjiang
Province of China (Grant No E0218).
Cite this article:
Chen Ming-Jun(陈明君), Liang Ying-Chun(梁迎春), Li Hong-Zhu(李洪珠), and Li Dan(李旦) Molecular dynamics simulation on mechanicalproperty of carbon nanotube torsional deformation 2006 Chinese Physics 15 2676
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