Optimización bajo metodología de superficie de respuesta (MSR) del material compuesto de matriz epoxi reforzado con fibra de chambira (astrocaryum) y su incidencia en las propiedades mecánicas

Abstract

The experimental research is focused on the mechanical characterization of the epoxy resin composite reinforced with chambira fiber. In the experimental work, the analysis of the mechanical properties of the new composite material was carried out, which was molded by vacuum stratification and later cured at different temperatures, in addition, subjected to CO2 laser cutting. The research raises the analysis of the response surface methodology directed to the BoxBehnken design which establishes three input factors with three levels for each factor: fiber orientation OC1 -45.0, 45 degrees, OC2 -45, 0.45 degree and curing temperature of 60, 90, 120 degrees centigrade. The design suggests a specific number of treatments for the destructive test of the specimens, data that will be validated by fulfilling the parametric assumptions. From the analysis of variance (ANOVA), the adequacy of the model for each mechanical property was corroborated, emphasizing the significant effects and their incidence on the mechanical properties, to complement the analysis, the optimization of each treatment is carried out through the desirability function. The results reveal that the optimal configuration of the composite material where the mechanical properties are used is by combining the OC1 of -35.9 degree; the OC2 of 45 degree and a temperature of 60 degree centigrade, predicted values of desirability with a value of 0.5871, it is also understood that the model explains 96.6 percent of the variability of the properties.