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Some aspects when applying continuous assumed gradient methods to explicit dynamics / Sebastian Wolff in Journal of engineering mechanics, Vol. 138 N° 7 (Juillet 2012) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 138 N° 7 (Juillet 2012) . - pp.910–913. Titre : Some aspects when applying continuous assumed gradient methods to explicit dynamics Type de document : texte imprimé Auteurs : Sebastian Wolff, Auteur ; Christian Bucher, Auteur Année de publication : 2012 Article en page(s) : pp.910–913. Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Continuous  assumed  gradients  Nodal  integration  SFEM  Explicit  dynamics  Comparison Résumé : This article presents some aspects of continuous assumed gradient (CAG) methods applied to explicit structural dynamics. CAG elements are finite elements in which the strain (i.e., the deformation gradient) is replaced by a C0-continuous interpolation. Examples provide measures for the accuracy and numerical efficiency of CAG methods. First-order hexahedral and tetrahedral elements are tested. The improvements in accuracy are even larger than in static examples, and increased numerical costs can be balanced by a larger critical time step. ISSN : 0733-9399 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29EM.1943-7889.0000389 [article] Some aspects when applying continuous assumed gradient methods to explicit dynamics [texte imprimé] / Sebastian Wolff, Auteur ; Christian Bucher, Auteur . - 2012 . - pp.910–913. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 138 N° 7 (Juillet 2012) . - pp.910–913. Mots-clés : Continuous  assumed  gradients  Nodal  integration  SFEM  Explicit  dynamics  Comparison Résumé : This article presents some aspects of continuous assumed gradient (CAG) methods applied to explicit structural dynamics. CAG elements are finite elements in which the strain (i.e., the deformation gradient) is replaced by a C0-continuous interpolation. Examples provide measures for the accuracy and numerical efficiency of CAG methods. First-order hexahedral and tetrahedral elements are tested. The improvements in accuracy are even larger than in static examples, and increased numerical costs can be balanced by a larger critical time step. ISSN : 0733-9399 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29EM.1943-7889.0000389