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2024-10-22
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info:eu-repo/semantics/openAccess
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Universidad Nacional de Educación a Distancia (España), Universidad de Concepción - Chile. Departamento de Ingeniería Mecánica
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Resumen
En este trabajo se definió la metodología de fabricación de placas de 250x156x3 [mm] por laminación manual de los materiales compuestos de matriz polimérica reforzado con 3 tejidos de kevlar balístico 29 con un apilamiento de 2 gramajes. Para predecir la respuesta como material antibala; se realizó un ensayo de resistencia al impacto balístico del material compuesto y del material de refuerzo sin matriz, en un campo de tiro certificado, utilizando un arma de aire comprimido calibre 5,5[mm] y un arma de fuego tipo pistola modelo CZ 75B calibre 9[mm]. Se realiza el análisis macro y las mediciones de los traumas ocasionados a los materiales después de cada impacto (realizando 3) en cada una de las placas. Observamos delaminación interior; fractura frágil/desgarro de la fibra y eliminación de la matriz.
In this study, the manufacturing methodology of 250x156x3 [mm] plates were determined through manual lamination of polymer matrix composite materials reinforced with three layers of ballistic Kevlar 29 fabric, with a stacking of two weights. To predict the response as a ballistic material, a ballistic impact resistance test was conducted on the composite material and the matrix-free reinforcement material, at a certified shooting range. This involved using a compressed air gun with a caliber of 5.5 [mm] and a CZ 75B model 9 [mm] pistol. Macro analysis and measurements of the traumas caused to the materials after each impact (3 impacts were conducted on each plate) were conducted. Interior delamination, brittle fracture/tearing of the fiber, and matrix removal were observed.
In this study, the manufacturing methodology of 250x156x3 [mm] plates were determined through manual lamination of polymer matrix composite materials reinforced with three layers of ballistic Kevlar 29 fabric, with a stacking of two weights. To predict the response as a ballistic material, a ballistic impact resistance test was conducted on the composite material and the matrix-free reinforcement material, at a certified shooting range. This involved using a compressed air gun with a caliber of 5.5 [mm] and a CZ 75B model 9 [mm] pistol. Macro analysis and measurements of the traumas caused to the materials after each impact (3 impacts were conducted on each plate) were conducted. Interior delamination, brittle fracture/tearing of the fiber, and matrix removal were observed.
Descripción
Organizado y patrocinado por: Federación iberoamericana de Ingeniería Mecánica y Universidad de Concepción - Chile. Departamento de Mecánica, FeIbIm – FeIbEM
Categorías UNESCO
Palabras clave
material compuesto, kevlar, epoxi, balística, laminación manual, Composite material, Kevlar, Epoxy, Ballistics, Manual Lamination
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Centro
E.T.S. de Ingenieros Industriales
Departamento
Mecánica