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