Nonlinear transient response of laminated composite shells / Namita Nanda in Journal of engineering mechanics, Vol. 134 n°11 (Novembre 2008)  

Public ISBD [article]  inJournal of engineering mechanics > Vol. 134 n°11 (Novembre 2008) . - pp.983–990. Titre : Nonlinear transient response of laminated composite shells Type de document : texte imprimé Auteurs : Namita Nanda, Auteur ; J. N. Bandyopadhyay, Auteur Année de publication : 2008 Article en page(s) : pp.983–990. Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Transient response Laminates Shells Finite element method Composite materials Résumé : This paper first compares the writers’ results of static and dynamic analyses of plates, cylindrical and spherical shells employing four-, eight-, and nine-noded elements with different integration rules with those of earlier investigators and including some of the recent composite theories. Thereafter, the nonlinear transient responses of laminated composite cylindrical and spherical shell panels with cutouts are investigated taking up additional examples that are yet to appear in the published literature. For these, the finite-element model is employed using eight-noded C0 continuity, an isoparametric quadrilateral element considering von Karman large deflection assumptions. In the time integration, the Newmark average acceleration method is used in conjunction with a modified Newton–Raphson iteration scheme. Important conclusions with respect to nonlinear transient responses are summarized for cylindrical and spherical shells with and without cutouts. ISSN : 0733-9399 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%290733-9399%282008%29134%3A11%289 [...] [article] Nonlinear transient response of laminated composite shells [texte imprimé] / Namita Nanda, Auteur ; J. N. Bandyopadhyay, Auteur . - 2008 . - pp.983–990. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 134 n°11 (Novembre 2008) . - pp.983–990. Mots-clés : Transient response Laminates Shells Finite element method Composite materials Résumé : This paper first compares the writers’ results of static and dynamic analyses of plates, cylindrical and spherical shells employing four-, eight-, and nine-noded elements with different integration rules with those of earlier investigators and including some of the recent composite theories. Thereafter, the nonlinear transient responses of laminated composite cylindrical and spherical shell panels with cutouts are investigated taking up additional examples that are yet to appear in the published literature. For these, the finite-element model is employed using eight-noded C0 continuity, an isoparametric quadrilateral element considering von Karman large deflection assumptions. In the time integration, the Newmark average acceleration method is used in conjunction with a modified Newton–Raphson iteration scheme. Important conclusions with respect to nonlinear transient responses are summarized for cylindrical and spherical shells with and without cutouts. ISSN : 0733-9399 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%290733-9399%282008%29134%3A11%289 [...]

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