Diseño y modelización del proceso de embutición del protector metálico para el tanque de combustible del Chevrolet SZ mediante el método de elementos finitos

Abstract

Nowadays, the sheet metal drawing designs are based on the experience of the designer which has been acquired through years of trial and error. This implies longer manufacturing times and high costs. The objective of this project is to model the drawing process of an automobile body part through finite element analysis (FEA) with the ANSYS software. In this simulation, the parameters were varied in order to identify the effects they had in the process. Additionally, the results were compared with the real auto body part. The first chapter describes the sheet metal drawing process by reviewing topics such as deformation theory, sheet metal drawing, and deformation criteria. The second chapter explains the settings of the finite element analysis and its application on this specific case, which will be by the explicit method. The third chapter describes the design process based on the context of current manufacturing methods. The fourth chapter describes the simulation of the sheet metal drawing process by the ANSYS software and the LS-DYNA module. It also describes the simulation methodology used by the software, the meshing of the part, the boundary conditions values assigned and other parameters. This chapter presents the results obtained, and their validation by comparing them with the real sheet metal drawing process. These results were also validated by the Hourglass zero-energy method. Finally, the fifth chapter presents the conclusions from the simulation and recommendations based on them.