Prediction of chirality- and size-dependent elastic properties of single-walled carbon nanotubes via a molecular mechanics model

摘要: Molecular mechanics has been widely used to analytically study mechanical behaviour of carbon nanotubes. However, explicit expressions for elastic properties nanotubes are so far confined some special cases due the lack fully constructed governing equations molecular model. In this paper, an analytical model established. The five in-plane a chiral single-walled nanotube derived, which make at different length-scales directly connected. effects tube chirality and diameter investigated. particular, present results show that classic relationship from isotropic theory continuum between Young’s modulus shear is not retained. helpful understanding nanotubes, also useful topic linking with mechanics.