Table 1 Young's modulus (E), Yield strength and Energy absorbed to yield for PU foam cylinders under compression
9 mm Diameter PU Foam Cylinder | Mean E(MPa) | Median E(MPa) | Mean Yield Strength (MPa) | Median Yield Strength (MPa) | Mean Energy Absorbed to Yield (kJ.m-3) | Median Energy Absorbed to Yield (kJ.m-3) |
|---|---|---|---|---|---|---|
0.09 g.cm-3 density foam | ||||||
3.9 mm length | 0.3 (0.2) | 0.3 | 0.02 (0.01) | 0.02 | 0.8 (0.6) | 0.7 |
7.7 mm length | 0.7 (0.2) | 0.7 | 0.04 (0.02) | 0.03 | 1.5 (1.4) | 1.2 |
0.16 g.cm-3 density foam | ||||||
3.9 mm length | 19 (3) | 19 | 1.0 (0.1) | 1.0 | 27.3 (10.0) | 25.1 |
7.7 mm length | 41 (3) | 42 | 1.1 (0.1) | 1.1 | 10.6 (2.7) | 10.8 |
0.32 g.cm-3 density foam | ||||||
3.9 mm length | 66 (13) | 64 | 3.6 (0.5) | 3.6 | 96.6 (47.9) | 83.3 |
7.7 mm length | 145 (6) | 146 | 3.3 (0.9) | 3.7 | 26.5 (14.4) | 30.3 |