Caracterización mecánica y numérica del material híbrido de matriz epoxi reforzada con tejido plano de fibra vegetal (algodón) y fibra natural (fibra de cabuya)

Abstract

The experimental work was based on the mechanical characterization of the hybrid matrix material of reinforced epoxy resin with layers of flat tissue between the fibers of cotton and fiber of cabuya with different orientations and different volumetric fractions, the study arose because at the present time the engineering of Materials presents great benefits for the technological and scientific development, which allowed to establish study of new materials with equal or better mechanical properties of the traditional materials that are used in the industry, and in this way replace the usual materials with new materials with the advantages In the weight and cost, with the group of specimens with better mechanical tensile characteristics was carried out a simulation by the method of finite elements using a software the same that was validated with real test and the percentage of error that existed between the results Obtained. The tests were performed under standards (traction-ASTM D3039, flexion-ASTM D 7264 impact-ASTM D5628) in this way was established the group of specimens with better mechanical properties of the cases studied. With the data of the real test and the corresponding analyzes, the material with better mechanical properties was established when subjected to the tests of tensile, flexion and impact was case 1 and case 2, case 1 conformed of 75% of epoxy resin as Matrix, as reinforcements 3 layers of flat tissue between the cotton fibers with the amount of 7.50% in angle of 90 ° and the fiber of cabuya with 17.50% in angle of 0 ° while the case 2 conformed of 70% Of epoxy resin as a matrix, as reinforcement 3 layers of flat tissue between the cotton fibers with the amount 7.50% in angle of 90 ° and the fiber of cabuya with 22.50% in angle of 0 °, the stratification of all the Specimens was compressed.