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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 106
PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by:
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
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 , (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..
Summary
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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