This project was to study the mechanical properties of composite material made from a mix. Epoxy fibers, stainless and ceramic fibers. This can be applied to engineering as an alternative to the use of composite materials to help create high-impact resistant products to
the experimental mixture of epoxy and reinforcing fibers. All three experiments, the ratio was 60: 40, 50: 50 and 40: 60 by weight to prepare fiber reinforced stainless steel used for the 0, 30, 60 and 90 degrees to the direction braided. And ceramic fibers braided in a 90-degree angle. Then come up with a process of hand-painted. To test the mechanical properties including tensile strength tests (ASTM D 638) penetration resistance test (ASTM D 4833) hardness testing (ASTM E 18) In order to compare properties. Of materials with different fibers as reinforcement for composites in the best ratio to test fire a gun in the level of protection 2A (standard NIJ)
It was found that epoxy composites reinforced with fibers. The ratio of 40: 60 is the best mechanical properties. 54.84 MPa tensile stress 6.39% the percentage of elongation, modulus of Youngsville, 0.86 GPa puncture resistance 62.76 (nm 〖〗 ^ 2/kg) 131.82 MPa compressive stress compressive stress to 14.30%. Test hit by a bullet in 2A of the test material can be hit by a bullet impact caused by the perforation of the test piece and the collapse of the substrate up to 44 mm.
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