Abstract
Desire to improve the efficiency of composite materials for engineering applications has led to the use of nano-sized additives or fillers such as nanoclay, nanosilica, nano-graphene, carbon nanotubes. The effect of nanoparticle inclusion on mechanical properties of fiber reinforced composite materials has been investigated by many researchers and crucial effects have been reported in several papers. In this work, the effects of nanosilica content on the low velocity impact behaviors of glass/epoxy fiber reinforced composite laminates are determined using Charpy impact tests. The composite laminates are fabricated via hand lay-up followed by hot press molding. The nanosilica particles with different weight percentages are dispersed in epoxy resins using mechanical stirring. The absorbed impact energy values of flatwise-unnotched and edgewise-notched beam specimens, and impact damages are analyzed as a measure of impact behavior. The results show that the incorporation of nanosilica particles have significant effects on the Charpy impact behavior.
Highlights
In the past few decades, fiber reinforced composite materials have become promising materials in aerospace, automotive, marine and defense industries due to their outstanding performance-to-weight ratio, better damping characteristics, good fatigue resistance, high resistance to corrosion when compared to conventional engineering materials
One of the techniques to improve the impact damage resistance of fiber reinforced polymer composites are the addition of small amounts of nanoparticles into the matrix of composites
The effect of nanoparticle inclusion on mechanical properties of fiber reinforced composite materials has been investigated by many researchers and crucial effects have been reported in several papers [1]
Summary
In the past few decades, fiber reinforced composite materials have become promising materials in aerospace, automotive, marine and defense industries due to their outstanding performance-to-weight ratio, better damping characteristics, good fatigue resistance, high resistance to corrosion when compared to conventional engineering materials. They have low intensity on the impact behavior because its brittle characteristics. Nano silica particle is the one of the common nanoparticles used in literature studies to improve behaviors of fiber reinforced composite materials. Absorbed impact energy values of beam specimens, and impact toughness are analyzed as a measure of impact behavior
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