Structural behaviours of zigzag and armchair nanobeams using finite element doublet mechanics

KARAMANLI A. F.

European Journal of Mechanics, A/Solids, vol.89, 2021 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 89
  • Publication Date: 2021
  • Doi Number: 10.1016/j.euromechsol.2021.104287
  • Journal Name: European Journal of Mechanics, A/Solids
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), Communication Abstracts, INSPEC, Metadex, zbMATH, Civil Engineering Abstracts
  • Keywords: Armchair, Bending, Buckling, Doublet mechanics, Nanobeam, Vibration, Zigzag
  • Yıldız Technical University Affiliated: Yes

Abstract

This paper presents a comprehensive study on bending, vibration and buckling behaviours of the zigzag and armchair nanobeams. Based on a third order shear deformation beam theory and the doublet mechanics, a finite element model is proposed and employed to solve the problems of zigzag and armchair nanobeams with various boundary conditions for the first time. The verification is performed by comparing the numerical results with those from the previous studies with respect to various boundary conditions. A number of numerical examples on zigzag and armchair nanobeams with four boundary conditions have been carried out. The effects of material length scale parameters, aspect ratio, nanobeam model and boundary conditions on the displacements, natural frequencies and buckling loads of nanobeams are investigated in details. Some new results, which are not available in open literature, are provided as references for the future studies.