유리/에폭시 3차원 브레이드 복합재료의 저속 충격 에너지 흡수기구

Energy Absorption Mechanism of Glass/Epoxy 3-D braided structure in Low Velocity Impact Test

In order to investigate the impact behaviors of 3-D braided glass/epoxy composites, the energy profiles and damage area were compared to the laminates of similar volume fraction and composition. The energy profiles showed different characteristics from each other which indicates they have distict energy absorption mechanisms. The image analysis on the damage projections visualized the crack propagation paths along the fiber direction.