Composite materials are preferred as an alternate for traditional metals due to its admirable properties like chemically inactive nature, high strength to weight ratio, ease of fabrication and capability of tailoring into the required shape. In order to apprehend the feasibility of Kevlar/E-glass and basalt/E-glass reinforced epoxy hybrid composites, this paper studies the low-velocity impact and flexural behavior and electrical conductivity of the composite laminates. Bend and impact test specimens were prepared as per ASTM 790 standard (80mm X 13mm X 3mm) and ASTM D256, ASTM D6110 standards respectively. The proportion of fiber and matrix material (75:25) is considered as an important factor for obtaining better flexural modulus. Izod and Charpy tests reveal that higher fiber volume fraction results in higher energy absorption. The hybrid composite combinations showed better electrical conductivity.
Composites with different configuration of fiber (E-Glass) and metal (Aluminium) laminates were fabricated and tested for grasping optimum hybrid structure. GLARE (Glass laminate aluminium reinforced epoxy) is a unique composite recently being used by wide engineering domains like defense body and vehicle armors, aerospace, marine and structural applications. The GLARE hybrid composites are manufactured by adding very thin layer of aluminium sheets (surface treated) on the surface of unidirectional E-Glass fiber fabrics in presence of epoxy polymer. Firstly three hybrid GLARE laminates were fabricated with different volume fractions. Consequently, impact and flexural behaviors are measured by izod, charpy impact and flexural tests for all volume configurations. Impact resistance of such hybrid laminate is intensively great. The results depicts that the linear metal volume fraction (MVF) increment on fiber metal laminates greatly increases impact energy absorption capacity of composites and little difference in flexural modulus. Finally the fractured surfaces were analyzed by optical microscope.
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