Table 8 Failure displacement by experiment and simulation and corresponding relative error
| Â | SOC | 0 | 0.2 | 0.4 | 0.6 |
|---|---|---|---|---|---|
Rigid rod test | Experimental failure displacement (mm) | 8.368 | 8.732 | 8.238 | 7.3 |
Simulation failure displacement (mm) | 8.7 | 8.8 | 8.4 | 7.65 | |
Relative error (%) | 3.97 | 0.78 | 1.97 | 4.79 | |
Standard error | 0.33 | 0.06 | 0.36 | 0.35 | |
Hemispherical punch test | Experimental failure displacement (mm) | 8.9 | 8.35 | 8.15 | 8.45 |
Simulation failure displacement (mm) | 8.35 | 8.3 | 8 | 7.6 | |
Relative error (%) | 6.18 | 0.60 | 1.84 | 10.06 | |
Standard error | 0.55 | 0.05 | 0.15 | 0.80 |