CREEM2023

CREEM 2023 - XXIX Congresso Nacional de Estudantes de Engenharia Mecânica

USO DO MÉTODO DE ELEMENTOS FINITOS PARA ESTUDO DAS TENSÕES DE MEMBRANA EM CHAPAS METÁLICAS

Submission Author: Davi Judá De Souza Fraga , GO , Brazil
Co-Authors: Davi Judá De Souza Fraga, Julio Cezar Pedrosa da Silva
Presenter: Davi Judá De Souza Fraga

doi://10.26678/ABCM.CREEM2023.CRE2023-0027

 

Abstract

We have three possible forms of nonlinearity, this work has the general objective of showing a comparison between the simulation using the Ansys software, by finit element method, analytical value and nonlinear simulation using the method of large displacements in sheet metal. It will be a metal plate 100 x 300 mm, bi-supported with 1.5 mm thick, with constant pressure. The load applied to the plate starts at zero and gradually increases over time for 50 seconds. It is verified that the simulated and calculated stress values are close to each other both in the X and Z axis at their maximum stresses. For the displacement, it is observed that the deflection exceeds 75% of the thickness of the plate, which generates membrane stress of the plate, which means that the linear solution cannot longer meet our problem, thus having to go to non-linear analysis. When comparing the two, there is a great difference, however, according to the literature, the most appropriate method is the non-linear method to predict and determine the displacement of the part method, since the linear method no longer meets to the problem and comparing the two it is possible to verify a difference of 40%.

Keywords

elementos finitos, Teoria de placa e cascas, Tensão de membrana, Simulação Linear, Simulaçao Não Linear

 

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