Buckling behavior of multilayer cylindrical shells composed of functionally graded nanocomposite layers under lateral pressure in thermal environments


Avey M., Fantuzzi N., AVEY A., Zamanov A., Hasanov Y., Schnack E.

Composites Part C: Open Access, vol.12, 2023 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 12
  • Publication Date: 2023
  • Doi Number: 10.1016/j.jcomc.2023.100417
  • Journal Name: Composites Part C: Open Access
  • Journal Indexes: Scopus
  • Keywords: Functionally graded carbon nanotube-patterned layers, Lateral critical pressure, Multilayer cylindrical shells, Shear deformation theory, Thermal effect
  • Istanbul Technical University Affiliated: Yes

Abstract

In this study, the stability behavior of multilayer cylindrical shells made of functionally graded nanocomposite layers (FG-NCLs) subjected to the lateral pressure in thermal environments is investigated. It is postulated that nanocomposite layers forming layered cylindrical shells are made of single-walled carbon nanotube (SWCNT)-reinforced polymers that have four types of profiles based on the uniform and linear distributions of mechanical properties. The material properties of SWCNTs are assumed to be dependent on location as well as temperature and are obtained from molecular dynamics simulations. The governing equations are derived as partial differential equations within shear deformation theory (SDT) and solved in a closed form, using the Galerkin procedure, to determine the lateral critical pressure (LCP) in thermal environments. The numerical representations relate to the buckling behavior of multilayer cylindrical shells made of functionally graded nanocomposite layers under the uniform lateral pressure for different CNT patterns and temperatures within SDT and Kirchhoff-Love theory (KLT).