Static and free vibration analysis of composite straight beams on the Pasternak Foundation

Ermıs M., ARIBAŞ Ü. N., Eratlı N., OMURTAG M. H.

WSEAS Transactions on Applied and Theoretical Mechanics, vol.12, pp.113-122, 2017 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 12
  • Publication Date: 2017
  • Journal Name: WSEAS Transactions on Applied and Theoretical Mechanics
  • Journal Indexes: Scopus
  • Page Numbers: pp.113-122
  • Keywords: Composite beam, Elastic foundation, Finite element method, Timoshenko beam theory
  • Istanbul Medipol University Affiliated: Yes

Abstract

The objective of this study is to investigate the static and free vibration analysis of the cross-ply laminated straight beams on a two-parameter foundation, namely Pasternak. The curved element formulation is based on Timoshenko beam theory including the shear influence and the rotary inertia. The degrees of freedom of the two nodded element are three translations, three rotations, two shear forces, one axial force, two bending moment and one torque (12 DOF). A parametric study is performed on the static and the natural frequencies of cross-ply laminated straight beams with various foundation parameters. Support conditions are simply supported, fixed-fixed and fixed-roller.