Browsing by Author "Toapanta Muyulema, Luis Alfredo"

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Caracterización mecánico de un material compuesto de matriz epóxica reforzado con fibras de polipropileno y su posible aplicación industrial
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2018) Toapanta Muyulema, Luis Alfredo; Paredes Robalino, María Belén
The research project was based on the mechanical characterization of the material composed of epoxy resin and polypropylene fiber, with different configurations such as the length of the reinforcement that in this case was used short fiber of 10mm and long fibers of 54mm with random and longitudinal distributions In addition, different volumetric fractions (80-20%, 75-25%, 70-30%) were used, corresponding to the percentage of the matrix and reinforcement, respectively, in order to establish the composite material with the best performance in the traction, bending and impact, for its later application in the industry. Tensile, bending and impact tests were performed under ASTM D3039, ASTM D7464, ASTM D5628, respectively. With the data of the tensile tests a first evaluation was made to determine the materials that pass to the following tests of flexion and impact, the same as the materials of the case 1.- 80% Matrix - 20% Reinforcement, short fiber of polypropylene (10mm), random orientation, case 2.- 80% Matrix - 20% Reinforcement, polypropylene long fiber (54mm), longitudinal orientation, case 3.- 75% Matrix - 25% Reinforcement, polypropylene short fiber (10mm) ), random orientation and case 6.- 70% Matrix - 30% Reinforcement, long polypropylene fiber (54mm), longitudinal orientation. Once the data of the flexion and impact tests were obtained, I made a second evaluation to determine the material with the best behavior present, which in this case was the material of case 6, which determined that this material is the best behavior Mechanical presents.