Material | Non aged specimens | Aged specimens | |||||
---|---|---|---|---|---|---|---|
Dose (kGy) | Modulus (MPa) | Ultimate stress (MPa) | Fracture strain | Modulus (MPa) | Ultimate stress (MPa) | Fracture strain | |
HDPE +0 % HA | 0 | 820 ± 36 | 20.5 ± 0.8 | 76 ± 5.8 | 650 ± 38 | 18.3 ± 0.8 | 60 ± 4.9 |
35 | 1060 ± 59 | 22 ± 1 | 48 ± 3.8 | 915 ± 55 | 22 ± 0.9 | 35 ± 3.1 | |
70 | 1190 ± 88 | 22.6 ± 0.9 | 26 ± 2.1 | 1059 ± 52 | 21.5 ± 1 | 22 ± 1.8 | |
HDPE + 10 % HA | 0 | 1006 ± 58 | 25 ± 1.4 | 16.4 ± 1.1 | 740 ± 54 | 21 ± 1.1 | 13.3 ± 1.01 |
35 | 1188 ± 79 | 24.6 ± 1.1 | 13 ± 0.92 | 1030 ± 60 | 23.9 ± 0.98 | 11 ± 0.87 | |
70 | 1310 ± 90 | 25.4 ± 0.95 | 10 ± 0.53 | 1200 ± 57 | 23.9 ± 1.1 | 9 ± 0.69 | |
HDPE + 20 % HA | 0 | 1185 ± 67 | 27.5 ± 1.3 | 10.5 ± 0.58 | 910 ± 60 | 25.4 ± 1.6 | 9.3 ± 0.64 |
35 | 1295 ± 70 | 28.1 ± 1.2 | 9 ± 0.72 | 1160 ± 63 | 26.9 ± 1.5 | 7 ± 0.48 | |
70 | 1430 ± 88 | 29 ± 1.7 | 8 ± 0.53 | 1350 ± 80 | 27 ± 1.2 | 7 ± 0.41 | |
HDPE + 30 % HA | 0 | 1310 ± 81 | 28.8 ± 1.9 | 8.5 ± 0.41 | 1030 ± 69 | 26.3 ± 1.5 | 8.1 ± 0.58 |
35 | 1480 ± 87 | 28.9 ± 1.5 | 7 ± 0.45 | 1250 ± 78 | 28 ± 1.6 | 6 ± 0.42 | |
70 | 1496 ± 89 | 29.1 ± 1.5 | 6 ± 0.39 | 1380 ± 81 | 27.5 ± 1.3 | 5 ± 0.33 |