Analytical determination of non-local parameter value to investigate the axial buckling of nanoshells affected by the passing nanofluids and their velocities considering various modified cylindrical shell theories  

作　　者：Soheil Oveissi Aazam Ghassemi Mehdi Salehi S.Ali Eftekhari Saeed Ziaei-Rad 

机构地区：[1]Department of Mechanical Engineering,Najafabad Branch,Islamic Azad University,Najafabad,Iran [2]Department of Mechanical Engineering,Khomeinishahr Branch,Islamic Azad University,Khomeinishahr,Iran [3]Department of Mechanical Engineering,Isfahan University of Technology,Isfahan 84156-83111,Iran

出　　处：《Chinese Physics B》2023年第4期511-528,共18页中国物理B（英文版）

摘　　要：We analytically determine the nonlocal parameter value to achieve a more accurate axial-buckling response of carbon nanoshells conveying nanofluids. To this end, the four plates/shells' classical theories of Love, Fl ¨ugge, Donnell, and Sanders are generalized using Eringen's nonlocal elasticity theory. By combining these theories in cylindrical coordinates,a modified motion equation is presented to investigate the buckling behavior of the nanofluid-nanostructure-interaction problem. Herein, in addition to the small-scale effect of the structure and the passing fluid on the critical buckling strain,we discuss the effects of nanoflow velocity, fluid density(nano-liquid/nano-gas), half-wave numbers, aspect ratio, and nanoshell flexural rigidity. The analytical approach is used to discretize and solve the obtained relations to study the mentioned cases.

关 键 词：BUCKLING nonlocal cylindrical shell model anofluid-nanostructure interaction carbon nanotubes 

分 类 号：O35[理学—流体力学] TB383.1[理学—力学]