Effect of the two-parameter elastic foundation on the critical parameters of nonhomogeneous orthotropic shells

Sofiyev A., Schnack E., Haciyev V., Kuruoglu N.

International Journal of Structural Stability and Dynamics, cilt.12, sa.5, 2012 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 12 Sayı: 5
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1142/s0219455412500411
  • Dergi Adı: International Journal of Structural Stability and Dynamics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Buckling, nonhomogeneity, orthotropic shells, vibration, Winkler and Pasternak-type elastic foundations
  • İstanbul Ticaret Üniversitesi Adresli: Hayır

Özet

A theoretical analysis is presented for determining the free vibrational and buckling characteristics of the nonhomogeneous, orthotropic, thin-walled, circular cylindrical and conical shells under a hydrostatic pressure and resting on a two-parameter elastic foundation. The basic relations have been obtained for the orthotropic truncated conical shell, the Young's moduli and density of which vary continuously in the thickness direction. By applying the Galerkin method, the buckling hydrostatic pressure and dimensionless frequency parameter of the homogeneous and nonhomogeneous orthotropic truncated conical shells with or without elastic foundations are obtained. Finally, the effects of the Winkler and Pasternak-type elastic foundations, the variations of shell characteristics, the effects of the nonhomogeneity and orthotropy on the critical parameters have been studied. The results are presented in tables, figures and compared with other works. © 2012 World Scientific Publishing Company.