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Axisymmetric stress analysis of a thick conical shell with varying thickness under nonuniform internal ressure / H. R. Eipakchi in Journal of engineering mechanics, Vol. 134 n°8 (Août 2008) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 134 n°8 (Août 2008) . - pp.601–610. Titre : Axisymmetric stress analysis of a thick conical shell with varying thickness under nonuniform internal ressure Type de document : texte imprimé Auteurs : H. R. Eipakchi, Auteur ; S. E. Khadem, Auteur ; G. H. Rahimi S., Auteur Année de publication : 2008 Article en page(s) : pp.601–610. Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Shells  Thickness  Finite  element  method  Shear  deformation  Internal  pressure  Stress Résumé : A mathematical approach based on the perturbation theory has been used for axisymmetric stress analysis of a thick conical shell with varying thickness under nonuniform internal pressure. The equilibrium equations have been derived using the energy principle and considering the second-order shear deformation theory (SSDT), which includes shear deformation effects. This system of ordinary differential equations with variable coefficients has been solved analytically using the matched asymptotic expansion method of the perturbation theory. A comparison of the results with the finite-element method and the first-order shear deformation theory shows that the SSDT can predict the displacements and stresses of the shell for a wide range of thicknesses as well with less calculations than other analytical methods such as the Frobenius series method. ISSN : 0733-9399 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%290733-9399%282008%29134%3A8%2860 [...] [article] Axisymmetric stress analysis of a thick conical shell with varying thickness under nonuniform internal ressure [texte imprimé] / H. R. Eipakchi, Auteur ; S. E. Khadem, Auteur ; G. H. Rahimi S., Auteur . - 2008 . - pp.601–610. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 134 n°8 (Août 2008) . - pp.601–610. Mots-clés : Shells  Thickness  Finite  element  method  Shear  deformation  Internal  pressure  Stress Résumé : A mathematical approach based on the perturbation theory has been used for axisymmetric stress analysis of a thick conical shell with varying thickness under nonuniform internal pressure. The equilibrium equations have been derived using the energy principle and considering the second-order shear deformation theory (SSDT), which includes shear deformation effects. This system of ordinary differential equations with variable coefficients has been solved analytically using the matched asymptotic expansion method of the perturbation theory. A comparison of the results with the finite-element method and the first-order shear deformation theory shows that the SSDT can predict the displacements and stresses of the shell for a wide range of thicknesses as well with less calculations than other analytical methods such as the Frobenius series method. ISSN : 0733-9399 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%290733-9399%282008%29134%3A8%2860 [...]