Abstract
The current research will discuss on the low velocity impact properties of kenaf/jute/kenaf hybrid composites treated with sodium hydroxide solution. The after impact damage properties will be observed through ultrasonic C-scan and compression after impact analyses. Kenaf/jute/kenaf sequence with 30 wt% fibre loading was laid up in epoxy matrix and cured in room temperature. The hybrid composites can withstand up to 30 J impact energy without full penetration, but appeared to be severely damaged. The visual inspection through the naked eyes clearly shown the cracks propagated towards the sides of the samples. However, limitations occurred through the C-scan technique, as the damages captured were not fully in parallel to the visual inspection. This is due to the properties of natural fibres. The compression after impact testing showed a maximum force of 42 kN needed to break the samples, impacted with low impact energy. The maximum compression force reduced as the impact energy increased.
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