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Authors
Advisor(s)
Abstract(s)
A novel finite element formulation for the buckling analysis of two-layer composite beam structures will be presented. The beam elements possess a single flexible shear interface and each layer is modelled by means of Timoshenko’s theory. The formulation relies on a hybrid variational principle of complementary energy only involving force/moment-like variables as fundamental unknown fields. The approximate field variables are such that all equilibrium differential equations hold in strong form, and the inter-element equilibrium as well as the Neumann boundary conditions are enforced by means of the Lagrangian-multiplier method. The accuracy and effectiveness of the proposed formulation will be demonstrated through the analysis of several numerical tests.
Description
Keywords
Composite beams Buckling Timoshenko theory Feixes compostos Teoria de Timoshenko
Citation
SANTOS, Hugo A. F. A. – A novel finite element formulation for the buckling analysis of layered composite beam structures. In 3rd International Conference on Numerical and Symbolic Computation – SYMCOMP 2017. Guimarães, Portugal: APMTAC – Associação Portuguesa de Mecânica Teórica, Aplicada e Computacional, 2017. ISBN: 978-989-99410-3-8. Pp. 83-95
Publisher
APMTAC – Associação Portuguesa de Mecânica Teórica, Aplicada e Computacional