Table 7 Hole enlargement scores reflecting the size of the end hole size and type of secondary damage
Damage type | End hole size | ||
|---|---|---|---|
< 5 mm | 6–20 mm | 21 > mm | |
None | 100 | 80 | 40 |
Laddering | 80 | 64 | 32 |
Unravelling | 50 | 40 | 20 |
Tearing combined with laddering or unravelling | 40 | 32 | 16 |