Caracterización de los aceros utilizados en las estructuras de carrocerías en vehículos de transporte de pasajeros.

Abstract

The present document aims to characterize steels used on the construction of the survival zone of body structures of vehicles utilized for public interprovincial transportation through chemical, mechanical and microstructural essays on tube samples from steels. The project includes verifying the compliant of requirements established on national standards RTE INEN 043:2015 and the quality of T and butt weld according to AWS standards. Additionally, simulations of structure were carried out with the different steels analyzed in order, to observe the performance of the survival zone, giving as results no invasion. The materials for this project were of two kinds: first one local and second one imported; none of them complied with the chemical and mechanical properties established on the national standard INEN 2415:2016; besides, local material did not complied with the galvanized thickness. For welded joints, local and imported steels do not complied the requirements of the established in the standard, for this reason it is suggested further inspections that include, physical and mechanical essays of base material and welded joints.