Stress Analysis of Laminated HSDT Beams Considering Bending Extension Coupling

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Bab Y., Kutlu A.

Teknik Dergi/Technical Journal of Turkish Chamber of Civil Engineers, vol.34, no.1, pp.1-23, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 34 Issue: 1
  • Publication Date: 2023
  • Doi Number: 10.18400/tjce.1206777
  • Journal Name: Teknik Dergi/Technical Journal of Turkish Chamber of Civil Engineers
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.1-23
  • Keywords: Higher Order theory, laminated composite beam, Hellinger-Reissner, mixed finite element formulation, stress analysis
  • Istanbul Technical University Affiliated: Yes


This study demonstrates a mixed finite element formulation procedure for the bending and stress analyses of laminated composite beams. The finite element method is based on the Hellinger-Reissner variational principle, while the beam assumptions are based on the Higher Order Shear Deformation Theory (HSDT). Reddy’s shear function is employed for the beam theory where the beam is discretized by two-noded linear elements. The displacements and stress resultants are obtained directly at the nodes according to the proposed mixed formulation. The validation of current study is performed by comparison and convergence analyzes for various lamination cases under different boundary conditions.