Análise dinâmica não linear geométrica de treliças planas
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Data
2017-04
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Editor
Ricardo Prado Abreu Reis
Resumo
This paper deals with dynamic analysis of two dimensional trusses, where the effects of geometric nonlinearity in these structures is studied when subjected by dynamic loads. In this context, the formulation based on geometric nonlinear analysis that describes the behavior of trusses discretized by finite elements using the Corotational Method is developed. For solving nonlinear systems is used the Numerical Method of Newton-Raphson and for the time integration of these equations is used Newmark Method. Through the corotational axis is possible to separate the rigid body movements from deformational movements. To verify the accuracy of the formulation studied in the present work, examples with plane trusses usually employed in analyzes with large geometric non-linearities in the technical literature were made. In general, the studied formulation presented was efficient for the dynamic analysis of trusses with large geometric nonlinearities.
Descrição
Palavras-chave
Análise dinâmica, Formulação corrotacional, Não linearidade geométrica, Treliças planas, Elementos finitos, Dynamic analysis, Corotational formulation, Geometric non-linearity, Plane trusses, Finite elements
Citação
OLIVEIRA, Leandro Damas de; SILVA, Wellington Andrade da; SILVA, William Taylor Matias; DELALIBERA, Rodrigo Gustavo. Análise dinâmica não linear geométrica de treliças planas. Revista Eletrônica de Engenharia Civil, Goiânia, v. 13, n. 2, p. 84-98, 2017. Disponível em: <https://www.revistas.ufg.br/reec/article/view/43626/pdf>.