The stability of a three-layered composite conical shell containing a FGM layer subjected to external pressure

AVEY A., Aksogan O., Schnack E., AVCAR M.

Mechanics of Advanced Materials and Structures, cilt.15, sa.6-7, ss.461-466, 2008 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Özet
  • Cilt numarası: 15 Sayı: 6-7
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1080/15376490802138492
  • Dergi Adı: Mechanics of Advanced Materials and Structures
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.461-466
  • Anahtar Kelimeler: Conical shell, Critical load, External pressure, FGMs, Layered composites, Stability
  • İstanbul Ticaret Üniversitesi Adresli: Evet

Özet

In this study, the stability of a generic three-layered truncated conical shell containing a functionally graded (FG) layer subjected to uniform external pressure is investigated. The material properties of the functionally graded layer are assumed to vary continuously through the thickness of the shell. The variation of the properties follows an arbitrary distribution in terms of the volume fractions of the constituents. The fundamental relations, the stability and compatibility equations of three-layered truncated conical shells containing a FG layer are obtained, first. Then, applying Galerkin's method, the closed form solution for critical external pressure is obtained. The results show that the critical parameters are affected by the configurations of the constituent materials, the variations of the thickness of the FG layer and the variation of the shell geometry. Comparing the results with those in the literature validates the present analysis.