Investigating the effect of viscosity and nonlocal effects on the stability of SWCNT conveying flowing fluid using nonlinear shell model

Abstract

This work concerns with viscous and nonlocal effects on the structural stability of single wall carbon nanotube (SWCNT) conveying flowing fluid. First, the nonlinear Donnell shallow shell formulations are developed to model nonlocal effects. Then, the effect of different viscosity coefficients across the nanotube, due to the depletion layer near the wall, on the structure stability is studied. Results show that viscosity has strong stabilization effect for 40 nm diameters SWCNTs, but may be ignored for sub-7 nm diameters. Simulation results reveal non-stabilizing behavior of nonlocal effects for sub-3 nm diameters SWCNTs. © 2012 Elsevier B.V. All rights reserved.