Análise computacional do impacto da estrutura tubular de um veículo Baja SAE

Abstract

The baja SAE vehicles, tubular cage structures used on off-road competitions with obstacles, are yearly developed by teams composed of university students oriented by Professors to compete against another university teams in competitions organized by SAE. For the development of the project and the building of the prototype, it is necessary to considerate various situations, which both structure and pilot are exposed to, like the plastic deformations that result from crashes against obstacles or other vehicles and eventually rollovers. This work had the objective of analyze the behavior of the non-linear deformation caused in a baja structure after a controlled impact situation. Therefore, it was obtained the stress x strain curve of two material, which properties were used in the software CAE Abaqus to evaluate the behavior of the roll cage tubular structure, as well as the resultants stresses and displacements. With the results analysis, it was observed that the material SAE 4130 did not suffer any break, as well as not suffering invasive displacements in the pilot area, being, therefore, advisable for the vehicle composition (sic).