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Strain energy and Young
Zhou, X; Zhou, JJ; Ou-Yang, ZC; Zhou, X , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
2000
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号62期号:20页码:13692-13696
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.
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
关键词Nanoscale Graphitic Tubules Elastic Properties Graphene Tubules Fullerenes Energetics Microtubules Dynamics Tubes
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12876
专题理论物理所1978-2010年知识产出
通讯作者Zhou, X , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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Zhou, X,Zhou, JJ,Ou-Yang, ZC,et al. Strain energy and Young[J]. PHYSICAL REVIEW B,2000,62(20):13692-13696.
APA Zhou, X,Zhou, JJ,Ou-Yang, ZC,&Zhou, X , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2000).Strain energy and Young.PHYSICAL REVIEW B,62(20),13692-13696.
MLA Zhou, X,et al."Strain energy and Young".PHYSICAL REVIEW B 62.20(2000):13692-13696.
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