Nonlinear finite element formulation analysis for shells with and without initial curvatures with hyperelastic materials
Nonlinear Analysis, Finite Element Method, Shell Theory, Hyperelastic Materials.
This work consists of studying the formulations of shells without and with initial curvature developed by Eduardo M. B. Campello in his doctorate, under the orientation of Paulo de Mattos Pimenta, and to implement a computational program on C platform to simulate several examples found in the literature. Hyperelastic constitutive equations are considered for both models. The formulations are implemented in C language using the Finite Element Method. From the developed program, results are presented for the classic examples present in the literature, to illustrate the validity of the theories. The obtained results suggest that the formulations present satisfactory performance for the analyzed examples. It may be mentioned as contribution of this work, the presentation of new results of simulated examples with both formulations and a comparative discussion.