An alternative method for analysing buckling of laminated composite beams

Ozkan G., Tekin Özkan G., Kadıoğlu F.

GRADEVINAR, cilt.69, sa.9, ss.841-850, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 69 Sayı: 9
  • Basım Tarihi: 2017
  • Doi Numarası: 10.14256/jce.1665.2016
  • Dergi Adı: GRADEVINAR
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.841-850
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

In this study, two new functionals are derived based on Gateaux differential in order to analyse buckling of symmetric cross-ply laminated composite straight beams. The functional comprises four independent variables, i.e. deflection, rotation, shear force and bending moment for Timoshenko beam, and two independent variables, deflection and bending moment, for Euler-Bernoulli beam. The application possibilities and performance of the proposed mixed finite element formulation are presented on several numerical examples.