A Critical Analysis on the Buckling of In-Plane Loaded Functionally Graded Beams

AYDOĞDU M., AKSENCER T.

MECHANICS OF COMPOSITE MATERIALS, cilt.61, sa.6, ss.1313-1326, 2026 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 61 Sayı: 6
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1007/s11029-026-10342-w
  • Dergi Adı: MECHANICS OF COMPOSITE MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
  • Sayfa Sayıları: ss.1313-1326
  • Anahtar Kelimeler: bifurcation buckling, deflection, functionally graded beams, pre-buckling
  • Trakya Üniversitesi Adresli: Evet

Özet

There are many studies in the literature that examine functionally graded material (FGM) structures without accounting for their bending in the pre-buckling stage. On the other hand, a few studies have shown that FGM structures start bending immediately under in-plane loads rather than bifurcation buckling. The deformation of functionally graded beams under in-plane loading beams was examined in order to contribute to clarifying this issue. Both linear and geometric nonlinear analyses were carried out for different boundary conditions based on classical Euler-Bernoulli beam theory. According to the parametric analysis, simple-simple, clamped-simple, and clamped-free beams exhibit direct bending behavior instead of buckling. The effects of both compressive and tensile-type in-plane forces were examined. The present formulation can also be used for unsymmetrically laminated composite beams.