Damage degree | Speed 1: 2 km∙h−1 | Speed 2: 3 km∙h−1 | Speed 3: 4.5 km∙h−1 | |
1—No damage | 6 AB | 3 B | 8 A | |
2—Peripheral damage | 16 A | 19 A | 17 A | |
3—Cracking | 15 A | 17 A | 15 A | |
4—Fragmentation | 13 A | 11 A | 10 A |