Research Output | Dar Al-hikmah Library | IIUM Only
A 1.91-mm thick circular polycarbonate plate of 115mm diameter was impacted by a spherical steel projectile of 6.98mm diameter at its center. Subsequent impacts were made at 10, 20, 30, 40, and 50mm radii of the plate. Dent dimensions for the damaged plate were measured using optical microscope. For a constant projectile velocity of 138ms�1 which