Reference : An assumed natural strain technique for 2D solid-shell elements
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Mechanical engineering
An assumed natural strain technique for 2D solid-shell elements
Nguyen, Nhu Huynh mailto [Université de Liège - ULiège > > > Doct. sc. ingé. (aérosp. & méca. - Bologne)]
PHAM, V. N. [Metal Forming Department, Hanoi University of Technology C10/301-No.1 DaiCoViet-Hanoi, Vietnam > > > >]
Hogge, Michel mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS - Milieux continus et thermomécanique - Doyen de la Faculté des Sciences appliquées >]
Ponthot, Jean-Philippe mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire >]
Proceedings of ACOMEN’2008, Advanced Computational Methods in Engineering
M. Hogge, R. Van Keer, L. Noels, L. Stainier, J.-P. Ponthot, Editors: J.-F. Remacle, E. Dick
University of Liège, Belgium,
Fourth International Conference on Advanced COmputational Methods in ENgineering (ACOMEN 2008)
26-28 May 2008
[en] natural strain technique ; 2D solid-shell elements
[en] With the combination of the enhanced assumed strain (EAS) and assumed natural strain (ANS) techniques in the removal of shear and volumetric locking, the solid-shell formulation requires a minimum set of enhanced modes, and this results in a competitive approach when compared with other fully EAS solid elements in terms of computational costs. Moreover, the latter reportedly suffers difficulties when dealing with very thin plate and shell structures due to the severe transverse shear locking. The paper presents an alternative solid-shell formulation, in which the ANS technique is applied to the upper and lower surfaces instead of at the mid-surface of the solid-shell element as
previously adopted. The numerical results show the accuracy and efficiency of the proposed technique.
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