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

Abstract

The present experimental work seeks to determine the optimization of the mechanical properties of the compound developed by means of an Epoxy resin matrix (Aeropoxy), reinforced with two layers of natural chambira fiber (Astrocaryum) and a synthetic glass fiber (Fiber Glass HexForce 7788), using the vacuum resin infusion method, subjected to curing of the specimens to finally fragment them through laser cutting. Applying the Response Surfaces Methodology, the Minitab statistical analysis software was used in which the mechanical properties of the composite material were analyzed, using the Box-Behnken design in which we entered 3 input factors with 3 levels each: Orientation 1 (-45.0.45) degrees, Orientation 2 (-45.0.45) degrees and the temperature (60,90,120) degrees Celsius. In the design, the total number of samples to be obtained was indicated and later the respective treatments were carried out to execute the destructive mechanical tests of each case. These results were validated by complying with the parametric assumptions specified in the design. Through the ANOVA analysis of variance, the global analysis was determined with the best combination of the mechanical properties that interact in the process, which gave us values for orientation 1 of 23.18 degrees, orientation 2 of -10.45 degrees and a temperature of 60 degrees Celsius, also in the global optimization a desirability of 0.5173 was obtained.