Buckling and vibration of shear deformable functionally graded orthotropic cylindrical shells under external pressures

AVEY A., KURUOĞLU N.

Thin-Walled Structures, cilt.78, ss.121-130, 2014 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 78
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.tws.2014.01.009
  • Dergi Adı: Thin-Walled Structures
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.121-130
  • Anahtar Kelimeler: Buckling, Cylindrical shells, FGM, Orthotropy, Shear deformation, Vibration
  • İstanbul Gelişim Üniversitesi Adresli: Evet

Özet

In this study, the vibration and buckling of functionally graded (FG) orthotropic cylindrical shells under external pressures is investigated using the shear deformation shell theory (SDST). The basic equations of shear deformable FG orthotropic cylindrical shells are derived using Donnell shell theory and solved using the Galerkin method. Parametric studies are made to investigate effects of shear deformation, orthotropy, compositional profiles and shell characteristics on the dimensionless frequency parameter and critical external pressures. Some comparisons among various theories have been performed in order to show the differences between the parabolic shear deformation theory (PSDT) and several higher-order shear deformation theories (HSDTs). © 2014 Elsevier Ltd.