Combined torsional buckling of carbon nanotubes subjected to thermo-electro-mechanical loadings with consideration of scale effect

摘要：

　　The present study has theoretically investigated the combined torsional buckling behavior of carbon nanotubes (CNTs) with consideration of scale effect in the multi-field coupling condition.The generalized governing equation of buckling for CNTs subjected to thermo-electro-mechanical loadings has been established based on an elastic shell model of continuum mechanics,in which scale effect is taken account of through the nonlocal elasticity theory.Except the applied torque and torsion-related axial load,the Van der Waals forces between adjacent nanotubes,as well as effects of temperature change and voltage load,is taken into consideration at the meantime.Numerical experiments are conducted to demonstrate the influences of different factors.The conclusions provided herein will be helpful and valuable for the dependent designs and related applications of CNT-based nano-structures serving in the complex thermal and electrical environment.

关键词： carbon nanotubes buckling multi-field coupling scale effect

作者: Yao Xiaohu Zhang Xiaoqing Sun Yugang Li Hanzhou

作者单位: Department of Engineering Mechanics, School of Civil Engineering and Transportation, SouthChina University of Technology, Guangzhou 510640, China

会议类型: 国际会议

会议名称: 中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)

会议地点: 杭州

会议语种:英文

页码: 1-7

在线出版日期: 2012-11-04（万方平台首次上网日期，不代表论文的发表时间）