The stability analysis of shear deformable FGM sandwich conical shells under the axial load

Sofiyev A.

Composite Structures, cilt.176, ss.803-811, 2017 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 176
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.compstruct.2017.06.022
  • Dergi Adı: Composite Structures
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.803-811
  • Anahtar Kelimeler: Critical axial load, FGM layers, First order shear deformation theory (FOSDT), Sandwich conical shells
  • İstanbul Ticaret Üniversitesi Adresli: Hayır

Özet

The purpose of this study is to investigate the stability of freely supported FGM sandwich conical shells subjected to the axial load within the first order shear deformation theory (FOSDT). The basic equations of FGM sandwich conical shells are displayed based on the Donnell shell theory. Galerkin's method is utilized to convert the partial differential equations to algebraically equations. The novelty of this study is to achieve closed-form solution for the critical axial load of FGM sandwich conical shells within the FOSDT. The parameter which is included in the obtained expressions is get from the minimum conditions of the critical axial load. The results obtained in this study compared with other studies and get good agreement. Emphasis is placed on studying the influences of FGM layers and transverse shear stresses on the magnitudes of the critical axial load for FGM sandwich conical shells with different geometrical dimensions.