Higher-order finite element models for the static linear and nonlinear behaviour of functionally graded material plate-shell structures

In this work, finite element formulations based on higher order shear deformation theories are used for the nonlinear static analysis of Functionally Graded Material plate-shell type structures. Linear and geometric nonlinear behaviour of the plate-shell type structures are considered. For the nonli...

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Bibliographic Details
Published in:Composite structures 2019-03, Vol.212, p.465-475
Main Authors: S.Moita, José, Franco Correia, Victor, Mota Soares, Cristóvão M., Herskovits, José
Format: Article
Language:English
Subjects:
Finite element models
Functionally graded materials
Stress analysis
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Summary:In this work, finite element formulations based on higher order shear deformation theories are used for the nonlinear static analysis of Functionally Graded Material plate-shell type structures. Linear and geometric nonlinear behaviour of the plate-shell type structures are considered. For the nonlinear analysis, the incremental equilibrium path is obtained using the updated Lagrangian procedure and Newton-Raphson incremental-iterative method, incorporating the automatic arc-length method for the cases of snap-through occurrence. The finite element models are based on a non-conforming triangular flat plate/shell element with 3 nodes and 8 or 11 degrees of freedom per node. The solutions of some illustrative plate-shell examples are performed, and the results are presented and discussed with numerical alternative models.
ISSN:0263-8223
1879-1085
DOI:10.1016/j.compstruct.2019.01.046