Buckling of embedded multi-walled carbon nanotubes under combined torsion and axial loading

作者：Wang, X^*; Lu, Guoxing; Lu, Y J

来源：International Journal of Solids and Structures, 2007, 44(1): 336-351.

DOI：10.1016/j.ijsolstr.2006.04.031

• multi-walled carbon nanotubes
• buckling under combined torsion and compression
• elastic medium
• multiple shells

This paper describes an investigation into elastic buckling of an embedded multi-walled carbon nanotube under combined torsion and axial loading, which takes account of the radial constraint from the surrounding elastic medium and van der Waals force between two adjacent tube walls. Depending on the ratio of radius to thickness, the multi-walled carbon nanotubes discussed here are classified as thin, thick, and nearly solid. Critical buckling load with the corresponding mode is obtained for multi-walled carbon nanotubes under combined torsion and axial loading, with various values of the radius to thickness ratio and surrounded with different elastic media. The study indicates that the buckling mode (m,n) of an embedded multi-walled carbon nanotube under combined torsion and axial loading is unique and it is different from that with axial compression only. New features for the buckling of an embedded multi-walled carbon nanotube under combined torsion and axial loading and the meaningful numerical results are useful in the design of nanodrive device, nanotorsional oscillator and rotational actuators, where multi-walled carbon nanotubes act as basic elements.

• 出版日期2007-1-1
• 单位上海交通大学