Improved formulation for the stabilized enhanced strain solid-shell element (SHB8PS): geometric linear and nonlinear applications
Communication avec acte
Date
2007Résumé
In this study, the formulation of the SHB8PS solid-shell element is reviewed in order to eliminate some persistent membrane and shear locking phenomena. The resulting physically stabilized and locking-free finite element consists in a continuum mechanics shell element based on a purely three-dimensional formulation. In fact, this is a hexahedral element with eight nodes as well as five integration points, all distributed along the “thickness” direction. Consequently, it can be used for the modelling of thin structures, while providing an accurate description of the various through-thickness phenomena. The reduced integration has been used in order to prevent some locking phenomena and to increase computational efficiency. The spurious zero-energy deformation modes due to the reduced integration are efficiently stabilized, whereas the strain components corresponding to locking modes are eliminated with a projection technique following the Enhanced Assumed Strain (EAS) method.
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Communication avec acteTRINH, Vuong-Dieu; ABED-MERAIM, Farid; COMBESCURE, Alain (Hermès-Lavoisier, 2007)Cet article décrit le développement d’un nouvel élément fini prismatique SHB6 de type solide-coque, obtenu à partir d’une formulation purement tridimensionnelle. Cet élément possède six nœuds et cinq points d’intégration ...
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Communication sans acteABED-MERAIM, Farid; COMBESCURE, Alain (E. Oñate , M. Papadrakakis and B. Schrefler, 2007)In this work, a new physically stabilized and locking-free formulation of the SHB8PS element is presented. This is a solid-shell element based on a purely 3D formulation. It has eight nodes as well as five integration ...
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Article dans une revue avec comité de lectureABED-MERAIM, Farid; COMBESCURE, Alain (Hermès / Paris : Lavoisier, 2007)In this work, the formulation of the SHB8PS finite element is reviewed in order to eliminate some persistent membrane and shear locking phenomena. This is a solid-shell element based on a purely three-dimensional formulation. ...
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Article dans une revue avec comité de lectureABED-MERAIM, Farid; TRINH, Vuong-Dieu; COMBESCURE, Alain (Springer Verlag, 2013)This paper is concerned with the development of a new family of solid- shell finite elements. This concept of solid-shell elements is shown to have a number of attractive computational properties as compared to conventional ...
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Article dans une revue avec comité de lectureABED-MERAIM, Farid; COMBESCURE, Alain (Wiley, 2009)In this paper, the earlier formulation of the SHB8PS finite element is revised in order to eliminate some persistent membrane and shear locking phenomena. This new formulation consists of a solid-shell element based on a ...