Estudo de deslocamentos em placas utilizando um elemento sólido de baixa ordem enriquecido com modos incompatíveis

• Main Authors: Erijohnson da Silva Ferreira, Sebastião Simão da Silva, Cícero Nogueira de Sousa Neto, Jailton Ferreira Moreira, Adenilda Timóteo Salviano
• Format: Article
• Language: Portuguese
• Published: Editora IFPB 2019-09-01
• Series: Revista Principia
• Subjects: finite element method. incompatible modes. plates
• Online Access: https://periodicos.ifpb.edu.br/index.php/principia/article/view/2835

The work proposes to study the displacement in plates, characteristics of geometry and diverse loads. The computational implementation of an 8-node hexahedral solid finite element is performed. After that, this element is enhanced through incompatible modes in order to improve the performance of the element in situations of multiaxial stresses, commonly present on plates. Then, we perform comparative analyzes with the purpose of studying the performance of the developed algorithm and compare its results with the final values of analyzes made by other authors, and with the results obtained by the modeling of the plates in commercial software. The analyzes take place in the static, linear and elastic range. It has been found that the enrichment of the low-order eight-node hexahedral solid element significantly improves its performance in plate analyzes, making it a viable alternative to the application.