Title
Numerical stability for a dynamic Naghdi shell
Abstract
We consider an elastic model for a shell incorporating shear, membrane, bending and dynamic effects. We make use of the theory proposed by Arnold and Brezzi [1] based on a locking free non-standard mixed variational formulation. This method is implemented in terms of the displacement and rotation variables as the minimization of an altered energy functional. We extend this theory to the shell vibrations problem and establish optimal error estimates independent of the thickness, thereby proving that shear and membrane locking is avoided. We study the numerical stability both in static and dynamic regimes. The approximation schemes are tested on specific examples and the numerical results confirm the estimates obtained from theory.
Year
DOI
Venue
2010
10.1016/j.amc.2010.03.098
Applied Mathematics and Computation
Keywords
Field
DocType
Shell,Locking,Mixed formulation,Dynamic,Finite element
Mathematical optimization,Shear (sheet metal),Mathematical analysis,Bending,Finite element method,Optimal estimation,Energy functional,Vibration,Numerical analysis,Mathematics,Numerical stability
Journal
Volume
Issue
ISSN
216
9
0096-3003
Citations 
PageRank 
References 
1
0.41
1
Authors
2
Name
Order
Citations
PageRank
Hanen Ferchichi110.75
Saloua Mani Aouadi272.49