Table 1 Mean [SE] nonlinear elastic compressive and shear data parameters
| Â | U | C | p* |
|---|---|---|---|
Peak compressive strain (%) | 39.99 [3.6e-3] | 39.98 [6.7e-3] | 0.3 |
Peak compressive stress (kPa) | 31.6 [6.3] | 12.9 [4.5] | 0.0002 |
Compressive modulus (kPa) | 267 [72] | 87 [35] | 0.0031 |
Compressive energy loss (%) | 38.2 [1.4] | 37.8 [1.6] | 0.7 |
Peak shear strain (%) | 80.9 [1.6e-2] | 80.9 [1.6e-2] | 0.3 |
Peak shear stress (kPa) | 9.0 [1.5] | 9.9 [2.0] | 0.6 |
Initial shear modulus (kPa) | 58 [19] | 61 [16] | 0.8 |
Toe shear modulus (kPa) | 5.4 [0.7] | 5.3 [0.9] | 0.9 |
Final shear modulus (kPa) | 21.9 [4.0] | 25.4 [5.6] | 0.3 |
Shear energy loss (%) | 48.0 [4.2] | 42.8 [4.2] | 0.2 |