Damage Behavior of Hybrid Composite Plates Exposed to Impacts at Different Energy Levels

The impact behavior of hybrid composite plates cured at 120 degrees C were examined by dropping weights on them for three hours. Two groups of hybrid composite plates were considered. In the first group (TYPE1), all plies were staked symmetrically or antisymmetrically with orientation angle 0 degrees, but in the second group (TYPE2), plies were staked symmetrically or antisymmetrically with orientation angles 0 degrees and 45 degrees. The plates were subjected to impact loadings with energies of 12, 16, and 20 J. Deflections, contact forces, and absorbed energies were determined and compared for plates in the different groups.