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Failure analysis of composite plates subjected to localized loadings via a unified formulation / G. Giunta in Journal of engineering mechanics, Vol. 138 N° 5 (Mai 2012) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 138 N° 5 (Mai 2012) . - pp.458-467 Titre : Failure analysis of composite plates subjected to localized loadings via a unified formulation Type de document : texte imprimé Auteurs : G. Giunta, Auteur ; A. Catapano, Auteur ; S. Belouettar, Auteur Année de publication : 2012 Article en page(s) : pp.458-467 Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Composite  materials  Plate  theories  Failure  analysis,  Localized  loadings Résumé : A failure analysis of composite plates accounting for localized loadings is presented in this work. A unified formulation is adopted to derive classical, higher order, layerwise, and mixed theories. A closed form, Navier-type solution is assumed. Simply supported, cross-ply laminates are investigated. Plates are subjected to a stepwise loading, an off-centric localized one and a localized moment. First-ply failure loading and index are obtained via several failure criteria. The influence of the side-to-thickness ratio is accounted for investigating thin and very thick plates. Symmetric and asymmetric stacking sequences are investigated. The accuracy of the proposed theories is assessed. On the basis of the obtained results, it can be concluded that higher order models are required for a correct failure analysis in which the three-dimensional stress state attributable to the localized loadings is accurately described. ISSN : 0733-9399 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29EM.1943-7889.0000358 [article] Failure analysis of composite plates subjected to localized loadings via a unified formulation [texte imprimé] / G. Giunta, Auteur ; A. Catapano, Auteur ; S. Belouettar, Auteur . - 2012 . - pp.458-467. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 138 N° 5 (Mai 2012) . - pp.458-467 Mots-clés : Composite  materials  Plate  theories  Failure  analysis,  Localized  loadings Résumé : A failure analysis of composite plates accounting for localized loadings is presented in this work. A unified formulation is adopted to derive classical, higher order, layerwise, and mixed theories. A closed form, Navier-type solution is assumed. Simply supported, cross-ply laminates are investigated. Plates are subjected to a stepwise loading, an off-centric localized one and a localized moment. First-ply failure loading and index are obtained via several failure criteria. The influence of the side-to-thickness ratio is accounted for investigating thin and very thick plates. Symmetric and asymmetric stacking sequences are investigated. The accuracy of the proposed theories is assessed. On the basis of the obtained results, it can be concluded that higher order models are required for a correct failure analysis in which the three-dimensional stress state attributable to the localized loadings is accurately described. ISSN : 0733-9399 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29EM.1943-7889.0000358