Caracterización mecánica a flexión de materiales compuestos con matriz fotopolimérica reforzados con fibras de abacá y cabuya mediante impresión 3D

Abstract

Composite materials and the manufacture of auto parts by 3D printing, is currently an alternative in

the manufacture of automotive auto parts. The objec- tive of the present investigation was to characterize

the composite material with a photopolymer resin ma- trix reinforced with natural abaca and cabuya fibers

manufactured by 3D printing, for its application in automotive autoparts manufacturing. As an object of study, the directional grid of the air conditioning duct of an automotive vehicle is selected, which by means

of an experimental analysis and computational simu- lation, compares its mechanical characteristics; For

the manufacture of the test specimens, a composite volumetric reinforcement fiber fraction of 20% was proposed in the two types of fibers, the bending test was carried out according to the ASTM 790 standard.As a result of the mechanical characterization of the

manufactured materials it was obtained that the max- imum bending stress of the compounds reinforced

with abaca (77,53 MPa) and cabuya (83,26 MPa) decreased with respect to the matrix material (92,77 MPa), the modulus of elasticity to flexion that had reinforced compounds with abaca (2211,33 MPa) and cabuya (1806,03 MPa) increased with respect to the matrix material (1689,64 MPa), which translates into

an increase in the rigidity of the characterized mate- rials, making possible the substitution of the matrix

material.