双层碳纳米管在扭矩作用下的屈曲  

BUCKLING OF A DOUBLE-WALLED CARBON NANOTUBE UNDER TORQUE

作　　者：韩强[1] 

机构地区：[1]华南理工大学交通学院工程力学系,广州510640

出　　处：《固体力学学报》2004年第4期451-454,共4页Chinese Journal of Solid Mechanics

基　　金：国家自然科学基金(10272046);广东省自然科学基金(020858)资助.

摘　　要：考虑双层碳纳米管层间范德华力的作用,利用连续介质力学的壳体理论,建立了扭矩作用下碳纳米管屈曲问题的双层弹性壳体模型,给出了相应的临界屈曲扭矩,分析了双层碳纳米管层间范德华力对临界屈曲扭矩的影响.The effects of van der Waals forces between the inner and outer nanotubes are taken into account. Using the shell theory in continuum mechanics, an elastic double-shell model is presented for the torsional buckling of a double walled carbon nanotube. Based on the model, the critical buckling torque is derived and the effect of van der Waals interaction on the critical buckling torque is discussed.

关 键 词：双层 屈曲 扭矩作用 范德华力 弹性 连续介质力学 壳体理论 临界 碳纳米管 

分 类 号：TB383[一般工业技术—材料科学与工程]