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Axisymmetric compressive buckling of multi-walled carbon nanotubes under different boundary conditions
Sun CQ(孙成奇); Liu KX; Hong YS(洪友士); Sun, CQ; Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Source PublicationACTA MECHANICA SINICA
2012-02-01
Volume28Issue:1Pages:83-90
ISSN0567-7718
AbstractThe paper studies the axisymmetric compressive buckling behavior of multi-walled carbon nanotubes (MWNTs) under different boundary conditions based on continuum mechanics model. A buckling condition is derived for determining the critical buckling load and associated buckling mode of MWNTs, and numerical results are worked out for MWNTs with different aspect ratios under fixed and simply supported boundary conditions. It is shown that the critical buckling load of MWNTs is insensitive to boundary conditions, except for nanotubes with smaller radii and very small aspect ratio. The associated buckling modes for different layers of MWNTs are in-phase, and the buckling displacement ratios for different layers are independent of the boundary conditions and the length of MWNTs. Moreover, for simply supported boundary conditions, the critical buckling load is compared with the corresponding one for axial compressive buckling, which indicates that the critical buckling load for axial compressive buckling can be well approximated by the corresponding one for axisymmetric compressive buckling. In particular, for axial compressive buckling of double-walled carbon nanotubes, an analytical expression is given for approximating the critical buckling load. The present investigation may be of some help in further understanding the mechanical properties of MWNTs.
KeywordCarbon Nanotube Buckling Van Der Waals Forces Elastic Medium High-pressure Shell Deformation Instability Behavior
Subject Area损伤、破坏机理和微结构演化
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Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000300918300011
Funding OrganizationThe project was supported by the National Natural Science Foundation of China (10721202, 10732010, 10972010 and 11028206).
DepartmentLNM金属材料微结构与力学性能
Classification二类
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46672
Collection非线性力学国家重点实验室
Corresponding AuthorSun, CQ; Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Sun CQ,Liu KX,Hong YS,et al. Axisymmetric compressive buckling of multi-walled carbon nanotubes under different boundary conditions[J]. ACTA MECHANICA SINICA,2012,28(1):83-90.
APA Sun CQ,Liu KX,Hong YS,Sun, CQ,&Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China..(2012).Axisymmetric compressive buckling of multi-walled carbon nanotubes under different boundary conditions.ACTA MECHANICA SINICA,28(1),83-90.
MLA Sun CQ,et al."Axisymmetric compressive buckling of multi-walled carbon nanotubes under different boundary conditions".ACTA MECHANICA SINICA 28.1(2012):83-90.
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