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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 106
Edited by: B.H.V. Topping and P. Iványi
Paper 214

A Mixed Finite Element for Static and Buckling Analysis of Laminated Folded Plates

E.J. Barbero1, A. Madeo2, G. Zagari2, R. Zinno2 and G. Zucco2

1West Virginia University, Morgantown, United States of America
2DIMES, University of Calabria, Rende, Cosenza, Italy

Full Bibliographic Reference for this paper
E.J. Barbero, A. Madeo, G. Zagari, R. Zinno, G. Zucco, "A Mixed Finite Element for Static and Buckling Analysis of Laminated Folded Plates", in B.H.V. Topping, P. Iványi, (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 214, 2014. doi:10.4203/ccp.106.214
Keywords: laminated folded plates, mixed finite elements, corotational kinematics..

A mixed finite element for linear and nonlinear analysis of laminated folded plates is presented in this paper. The mixed formulation affords accurate prediction of stresses, which are needed for damage and failure analysis. Static condensation of the stress parameters results in a displacement-only element that is easy to integrate into commercial packages via their user element feature. The linear element is easily extended for nonlinear analysis by using a corotational formulation. Numerous test cases demonstrate the performance of the element by comparison with existing and, or costlier numerical solutions from the literature. The element is free from spurious modes employing full integration and an incompatible displacement mode on the contour displacements.

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