On the Buckling Response of Axially Pressurized Nanotubes Based on a Novel Nonlocal Beam Theory

Document Type : Research Paper


Department of Mechanical Engineering, Faculty of Engineering, Islamic Azad University, Mashhad Branch, Iran


In the present study, the buckling analysis of single-walled carbon nanotubes (SWCNT) on the basis of a new refined beam theory is analyzed. The SWCNT is modeled as an elastic beam subjected to unidirectional compressive loads. To achieve this aim, the new proposed beam theory has only one unknown variable which leads to one equation similar to Euler beam theory and is also free from any shear correction factors. The equilibrium equation is formulated by the nonlocal elasticity theory in order to predict small-scale effects. The equation is solved by Navier’s approach by which critical buckling loads are obtained for simple boundary conditions. Finally, to approve the results of the new beam theory, some available well-known references are compared.


Main Subjects

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