372167.fig.004a
(a) 97 m/s, 142 J
372167.fig.004b
(b) 142 m/s, 311 J
372167.fig.004c
(c) 171 m/s, 443 J
Figure 4: Increasing damage with increasing impact velocity visualised by ultrasonic C-scans of specimens with tensile preload (no delaminations but only matrix cracking).