Figure 2. Intra-cranial pressure-time histories and distributions.

Pressure-time histories at the coup (red lines) and contre-coup (blue lines) for impacts with different mass projectiles, and contour plots captured at different instants in each case. (A) Impact with heavy projectile (14.0 kg at 7.3 m/s; impact energy E_K* = 127.4 J): a quasi-static pressure-time history is observed. (B) Impact with golf ball (44.4 g at 76 m/s; identical impact energy as heavy projectile E_K* = 127.4 J): dynamic pressure-time history observed at coup and contre-coup. (C) Impact with light fragment (10.0 g also at 76 m/s; impact energy E_K* = 28.8 J): again dynamic pressure-time history is observed.