Optimización - MSR del material compuesto de matriz epoxi reforzado con fibra natural Chambira (Astrocaryum) y sintética (carbono) mediante infusión de resina al vacío y su incidencia en las propiedades mecánicas

Abstract

Today in the field of Materials Engineering there is a great demand to improve the mechanical properties of new materials that are being designed and thus be able to meet the needs that the user requires. The experimental work was carried out under the (MSR) (Box-Behnken) methodology, which establishes three input factors with three levels for each one, thus allowing to determine the orientation of the fibers and the curing temperature. The values considered were: -45, 0, and 45 degrees and the temperature 60, 90, and 120 degrees Celsius. The conformation of the specimens was carried out by means of a vacuum system by infusion, the same one that allowed to obtain better results in the surface of the material avoiding the porosity, later the curing of the material was carried out at the established temperatures, in addition, it was carried out a laser cut. The results obtained from the tensile, bending and impact tests were tabulated and analyzes were carried out, yielding the following results: that the best combination of fibers to obtain an optimal material should be carried out with orientation1 -10.4545 degrees and orientation2 -37 .2727 degrees; that the curing temperature 120 degrees Celsius and the MSR design regression model explains an overall desirability value of 0.5953.