A modified strain gradient shell model for vibration analysis of DWCNT conveying viscous fluid including surface effects

• Babak Ghanbari ^[1] ; Majid Ghadiri ^[1] ; Hamed SafarPour ^[1]
  1. [1] Imam Khomeini International University

     Imam Khomeini International University

     Irán

     
• Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 50, Nº. 5, 2022, págs. 1506-1536
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • In this article, the vibration analysis of a double-walled carbon nanotube (DWCNT) conveying viscous flow with the aid of modified strain gradient theory has been investigated. The visco-Pasternak model is used to simulate the elastic medium. The force caused by viscous fluid is calculated by modified Navier–Stokes relation. The Gurtin-Murdoch surface elasticity theory has the capability to capture the size-dependent behavior of nanostructures due to the surface stress effect. The governing equations and the boundary conditions have been developed using Hamilton’s principle and solved with the aid of generalized differential quadrature (GDQ) methods.