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Tounsi, Abdelouahed (Laboratoire des Materiaux et Hydrologie, Universite de Sidi Bel Abbes) Benguediab, Soumia (Laboratoire des Materiaux et Hydrologie, Universite de Sidi Bel Abbes) Adda Bedia, El Abbas (Laboratoire des Materiaux et Hydrologie, Universite de Sidi Bel Abbes) Semmah, Abdelwahed (Universite de Sidi Bel Abbes, Departement de physique) Zidour, Mohamed (Laboratoire des Materiaux et Hydrologie, Universite de Sidi Bel Abbes)
저널정보
테크노프레스 Advances in nano research Advances in nano research 제1권 제1호
발행연도
2013.1
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1 - 11 (11page)

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The thermal buckling properties of double-walled carbon nanotubes (DWCNTs) are studied using nonlocal Timoshenko beam model, including the effects of transverse shear deformation and rotary inertia. The DWCNTs are considered as two nanotube shells coupled through the van der Waals interaction between them. The geometric nonlinearity is taken into account, which arises from the mid-plane stretching. Considering the small-scale effects, the governing equilibrium equations are derived and the critical buckling temperatures under uniform temperature rise are obtained. The results show that the critical buckling temperature can be overestimated by the local beam model if the nonlocal effect is overlooked for long nanotubes. In addition, the effect of shear deformation and rotary inertia on the buckling temperature is more obvious for the higher-order modes. The investigation of the thermal buckling properties of DWCNTs may be used as a useful reference for the application and the design of nanostructures in which DWCNTs act as basic elements.

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