Table 2.
Median fatigue life (Nf) based on 1% creep failure definition, at maximum stress applied (σmax). Values reported as ‘median (n=6), (25% percentile, 75% percentile).’ ‘-’ indicates the specimen was not subjected to corresponding stress. Mann-Whitney tests were performed to determine statistical significance between the mean of groups.
| σmax (MPa) | PCL-BG/PUR | CaS/P | U-BG/PUR |
|---|---|---|---|
| 5 | 230500a (66500, 495000) | 23500 (12500, 36750) | 3 (2, 3) ab |
| 10 | 38000a (20250, 52000) | 236 (70, 511) | - |
| 15 | 58500a (24500, 69250) | 4 (3, 16) | - |
| 20 | 9075 (5960, 15735) | - | - |
| 25 | 710 (327, 2443) | - | - |
| 30 | 1115 (383, 1458) | - | - |
a
p<.0022, at specific σmax relative to to CaS/P.
b
p<.0022, at specific σmax relative to to PCL-BG/PUR.