Free vibration and buckling analysis of laminated composites and sandwich microbeams using a transverse shear-normal deformable beam theory

KARAMANLI A. F., AYDOĞDU M.

JVC/Journal of Vibration and Control, vol.26, no.3-4, pp.214-228, 2020 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 26 Issue: 3-4
  • Publication Date: 2020
  • Doi Number: 10.1177/1077546319878538
  • Journal Name: JVC/Journal of Vibration and Control
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), Communication Abstracts, Compendex, INSPEC, Metadex, zbMATH, Civil Engineering Abstracts
  • Page Numbers: pp.214-228
  • Keywords: buckling, free vibration, laminated composite, modified couple stress theory, Normal deformation
  • Yıldız Technical University Affiliated: Yes

Abstract

In this paper, the free vibration and buckling responses of laminated composite and sandwich microbeams with arbitrary boundary conditions are investigated. The governing equations based on the modified couple stress theory are derived by using the total potential energy of a microbeam and employing a transverse shear-normal deformable beam theory. Extensive analysis results in terms of dimensionless fundamental frequencies and dimensionless critical buckling loads are introduced for various boundary conditions, aspect ratios, orthotropy ratios, fiber orientation angles, thickness to material length scale parameter ratios, and core thickness to face layer thickness ratios.