The dynamic stability of orthotropic cylindrical shells with non-homogenous material properties under axial compressive load varying as a parabolic function of time

Sofiyev A. H., Yucel K., AVCAR M., Zerin Z.

JOURNAL OF REINFORCED PLASTICS AND COMPOSITES, cilt.25, sa.18, ss.1877-1886, 2006 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25 Sayı: 18
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1177/0731684406069914
  • Dergi Adı: JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1877-1886
  • Anahtar Kelimeler: dynamic stability, non-homogeneous materials, critical parameters, TRUNCATED CONICAL SHELLS, PLATE
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

In this study, the dynamic stability problem of a cylindrical shell composed of non-homogeneous orthotropic materials with Young's moduli and density varying continuously in the thickness direction under the effect of an axial compressive load varying with a parabolic function of time is considered. At first, the fundamental relations and the modified Donnell type dynamic stability equations of a non-homogeneous orthotropic cylindrical shell are set up. Applying the Galerkin method, first, and then the Ritz-type variational method, the closed-form solutions have been derived for the dynamic critical axial load and dynamic factor. Finally, carrying out some computations, the effects of the non-homogeneity of the orthotropy ratio and the axial loading parameter on the critical parameters have been studied. Comparing results with those in the literature validates the present analysis.