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题名: Strain energy and Young
作者: Zhou, X ;  Zhou, JJ ;  Ou-Yang, ZC
刊名: PHYSICAL REVIEW B
出版日期: 2000
卷号: 62, 期号:20, 页码:13692-13696
关键词: NANOSCALE GRAPHITIC TUBULES ;  ELASTIC PROPERTIES ;  GRAPHENE TUBULES ;  FULLERENES ;  ENERGETICS ;  MICROTUBULES ;  DYNAMICS ;  TUBES
学科分类: Physics
通讯作者: Zhou, X , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China
英文摘要: The strain energies in straight and bent single-walled carbon nanotubes (SWNT's) are calculated by taking account of the total energy of all the occupied band electrons. The obtained results are in good agreement with previous theoretical studies and experimental observations. Young's modulus and the effective wall thickness of SWNT's are obtained from the bending strain energies of SWNT's with various cross-sectional radii. The repulsion potential between ions contributes the main part of Young's modulus of SWNT's. The wall thickness of the SWNT comes completely from the overlap of electronic orbits and is approximately of the extension of the pi orbit of carbon atom. Both Young's modulus and the wall thickness are independent of the radius and the helicity of SWNT, and insensitive to the fitting parameters. The results show that continuum elasticity theory can serve well to describe the mechanical properties of SWNT's.
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12876
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Zhou, X,Zhou, JJ,Ou-Yang, ZC. Strain energy and Young[J]. PHYSICAL REVIEW B,2000,62(20):13692-13696.
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