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- W2006508731 abstract "Abstract An investigation is reported of the thermal buckling and postbuckling of axially compressed double-walled carbon nanotubes (CNTs) subjected to a uniform temperature rise. The double-walled carbon nanotube is modeled as a nonlocal shear deformable cylindrical shell, which contains small-scale effects and van der Waals interaction forces. The governing equations are based on higher order shear deformation shell theory with a von Kármán–Donnell-type of kinematic nonlinearity and include thermal effects. Temperature-dependent material properties, which come from molecular dynamics (MD) simulations, and an initial point defect, which is simulated as a dimple on the tube wall, are both taken into account. The small-scale parameter, e 0 a, is estimated by matching the buckling temperature of CNTs observed from the MD simulation results with the numerical results obtained from the nonlocal shear deformable shell model. The numerical illustrations concern the thermal postbuckling response of perfect and imperfect, single- and double-walled CNTs with different values of compressive load ratio. The results show that buckling temperature and postbuckling behavior of nanotubes are very sensitive to the small-scale parameter. The results reveal that temperature-dependent material properties have a significant effect on the thermal postbuckling behavior of both single- and double-walled CNTs. Keywords: nanotubenonlocal shell modelthermal buckling Acknowledgement The support for this work, provided by the National Natural Science Foundation of China under Grant No. 10802050, is gratefully acknowledged." @default.
- W2006508731 created "2016-06-24" @default.
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- W2006508731 date "2010-08-01" @default.
- W2006508731 modified "2023-10-05" @default.
- W2006508731 title "Nonlocal shear deformable shell model for thermal postbuckling of axially compressed double-walled carbon nanotubes" @default.
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- W2006508731 doi "https://doi.org/10.1080/14786435.2010.483239" @default.
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