Table 1.
Mechanical Property | G | GH |
---|---|---|
Compressive elastic modulus at 10% strain (MPa) | 0.15 ± 0.05 | 0.22 ± 0.03 * |
Compressive elastic modulus at 20% strain (MPa) | 0.31 ± 0.11 | 0.52 ± 0.04 * |
Compressive elastic modulus at 30% strain (MPa) | 0.64 ± 0.23 | 1.26 ± 0.16 * |
Compressive strain to failure (%) | 45.0 ± 4.9 | 32.8 ± 2.2 * |
Compressive stress to failure (MPa) | 0.21 ± 0.04 | 0.17 ± 0.02 * |
Toughness (kJ/m3) | 35.0 ± 2.6 | 22.5 ± 5.4 * |
Compressive stiffness at 0.2 mm displacement (kN/m) | 4.45 ± 1.55 | 6.51 ± 0.67 * |
Compressive stiffness at 0.4 mm displacement (kN/m) | 8.99 ± 3.08 | 14.54 ± 0.84 * |
Compressive stiffness at 0.6 mm displacement (kN/m) | 18.20 ± 6.19 | 32.63 ± 3.68 * |
* p < 0.05 compared with G.