Working Model 2d |top| Crack -

| Time (s) | Crack Length (mm) | Tip Force (N) | Beam Deflection (mm) | |----------|------------------|---------------|----------------------| | 0.5 | 5.0 | 18 | 1.2 | | 0.9 | 5.0 | 24.5 | 2.1 | | 1.0 | 6.2 | 0 (broken) | 2.3 | | 1.5 | 10.5 | – | 3.0 | | 2.5 | 19.0 (complete) | – | 4.5 |