Effect of Notch Orientation and Service Temperature on Impact Toughness of Post-Treated Woven Hybrid Composites

The effect of notch orientation, service temperature, post-heat treatment, and the sea water immersion on the impact durability of glass/textile fabric hybrid composites have been experimentally investigated. The results of the experimental analysis carried out on the impact toughness of these laminates have been reported. Impact tests were conducted on the specimens with two notch configurations. Results have shown that the notch along the laminate is highly prone to the catastrophic failure and the notch across the laminates will sustain the impact loads to a considerable extent. The results have reveled that there is a particular level of service temperature within which these composites will yield maximum strength. The post-heat treatment and the sea water immersion have also shown maximum influence on the impact strength of these laminates. The durability of laminates with 45% of glass and 15% of textile fabric was found to be very high.