Improved formulation for the stabilized enhanced strain solid-shell element (SHB8PS): geometric linear and nonlinear applications
Communication avec acte
Date
2007Abstract
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.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Communication sans acteIn 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 ...
-
Formulation of new quadratic solid-shell elements and their evaluation on popular benchmark problems Communication sans acteOver the last decade, considerable progress has been made in the development of three-dimensional finite elements capable of modeling thin structures. The coupling between solid and shell formulations has proven to be an ...
-
Validation d’une nouvelle version de l’élément solide/coque “SHB8PS” sur des cas tests non linéaires Communication avec acteL’intérêt de disposer d’éléments finis volumiques capables de modéliser des structures minces est motivé par de nombreux problèmes industriels. Ainsi, ces dernières années, plusieurs travaux ont été réalisés dans ce domaine. ...
-
Conférence invitéeBecause accuracy and efficiency are the main features expected within the finite element (FE) method, the current contribution proposes a six-node prismatic solid–shell, denoted (SHB6). The formulation is extended here to ...
-
Article dans une revue avec comité de lectureThis paper presents the development of a new prismatic solid-shell finite element, denoted SHB6, obtained using a purely three-dimensional approach. This element has six nodes with displacements as the only degrees of ...