Prediction on Young’s Modulus of Bamboo-like Carbon Nanotubes Based on Molecular Structural Mechanics Approach
A molecular structural mechanics model, based on a link between molecular and solid mechanics, was applied to predict Youngs modulus of bamboo-like carbon nanotubes （BCNTs)in this paper. In this approach, the models of BCNTs considering the structure and properties of C-C bond can describe the truth state more realistically; meanwhile avoid the operational difficulties in experiments. With the proposed model, (12, 0) bamboo-like carbon nanotube (BCNT) was tested under a uniaxial tensile load. The Youngs modulus of the (12, 0) BCNT was obtained and compared with that of carbon nanotube (CNT) with same structural parameters. The results show that the Youngs modulus of BCNT is smaller than that of ideal CNT with same structural parameters due to the existence of structure defect (periodic inner hollow compartments), where the atoms form five-membered rings rather than six-membered rings in ideal CNT. The presented results demonstrate that the proposed molecular structural mechanics model is viable for discussing the strength behaviours of BCNTs.
Yang Shu Lehua Qi Zhenfeng Sun Hejun Li
School of Mechatronics, Northwestern Polytechnical University, Xi’an, China School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an, China
国际会议
长春
英文
1-5
2011-08-29（万方平台首次上网日期，不代表论文的发表时间）