Samples (No.) | P (Pressure) (KN) | ∆ L (mm) | Strain % | Stress (MPa) | E (Youngs Modulas) (GPa or kN/mm) |
3 L | 4.5 | 2 | 0.02 | 7.9 | 0.395 |
4 L | 3.5 | 1.9 | 0.019 | 5.8 | 0.305 |
11 L | 6 | 2 | 0.019 | 9.6 | 0.505 |