Optimización (Doe-Mezclas) del material híbrido con refuerzos de fibra de abacá, fibra de cabuya y fibra de vidrio de matriz de resina epóxica y su incidencia sobre las propiedades mecánicas a flexión, tracción e impacto

Abstract

The following experimental work was aimed at finding new combinations of composite materials conformed of fiberglass (VF), abaca fiber (FA) and cabuya fiber (FC) with epoxy matrix. For this it was used different volumetric mixtures of reinforcements, the same ones that were considered as input parameters in the statistical analysis of mixtures to optimize the mechanical properties of the results of the different treatments. Specimens were made by compression stratification to then test them and obtain data generated by the Tensile tests (ASTM D3039 / D3039M-08), Flexural (ASTM D7264 / D7264M-07), and Impact (ASTM D5628-10, FE geometry), and thus treat them under parametric assumptions developing a reliable analysis. Once the data was established, it was analyzed by means of the design of mixtures; from which, the significance of the p - value located in the mixture regression table was verified, which was inferred for the generation of the optimization of the responses of the mixtures using the minitab software. In experimental work it was possible to establish the volumetric fractions that generated the best mechanical properties of the mixture; fiberglass 0.261 percent, abaca fiber 0.003 percent, cabuya fiber 0.036 percent and epoxy matrix 0.7 percent, fulfilling the foundation of a mixture of always being equal to one.