Fabricación de un casco abierto para motociclista aplicando manufactura aditiva para su homologación bajo la norma INEN: 2669:2013, mediante un diseño propio.

Abstract

The present project proposes the design and manufacture of an open-face helmet used by motorcyclists for its subsequent homologation applying additive manufacturing, using different materials such as Acrylonitrile Butadiene Styrene (ABS) and Polylactic Acid (PLA), which complies with the provisions of INEN: 2669:2013 being the impact absorption tests, rigidity in terms of longitudinal and transverse deformations, in addition to flammability, those established in the aforementioned regulation. To achieve the proposal the first step was to design the helmet testing form and the impact adsorption test equipment with the dimensions established in the regulations. Then, we proceeded to the original design of the helmet to be subjected to simulation tests using ANSYS LSDYNA software, which allowed us to evaluate the qualities of this, being subjected to different impact scenarios taking into consideration stress behaviour, deformation of materials and geometric nonlinearity, with these results we proceeded to the printing of the helmet using the two materials described above. In the tests, it was possible to verify that the material Polylactic Acid (PLA) did not present damages in the impact adsorption, deformation and flammability tests, while, the material Acrylonitrile Butadiene Styrene (ABS) presented rupture in the impact adsorption tests, transverse deformation higher than 15 mm which is the limit established in the standard. Finally, the material (PLA) is the appropriate one to manufacture the helmet. It is recommended to analyze polymer materials superior to those used in the present investigation.