Experimental study on ballistic penetration resistance of T300/Epoxy laminates
In order to investigate the ballistic penetration resistance of T300/Epoxy laminates,five different thick-nesses and three layering modes were designed,and penetration tests were conducted using 7.62 mm bullets at impact velocities ranging from 400 m/s to 650 m/s,and a comparative analysis was performed on the penetration depth,de-formation process,and damage forms.The results indicate that the ballistic limit velocity of 25 mm thick laminates with a layering[0/±45/90]s is approximately 503 m/s,while that of 30 mm thick laminates with the same layering is between 602 m/s and 650 m/s.Under the same thickness,the laminates with a layering[-45/0/45/90/0/0/-45/90/45/0]s show better penetration resistance than those with layering of[0/90]s and[0/±45/90]s.With the in-creasing of thickness,the delamination and dorsal convex first increased and then decreased.When the impact veloci-ty is close to the ballistic limit velocity,the delamination in the laminates is most significant.
carbon-fiber-reinforced polymerpenetration testdepth of penetrationlayering modedamage mode
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