Table 3: Compression data of the experiment.

NumberExperimental load (N)Theoretical load (N)Relatively errorExperimental deformation displacement (mm)Theoretical deformation displacement (mm)Relative error

1125.61125.100.41%0.31400.29266.81%
2293.87290.671.09%0.21470.20325.36%
3187.67184.921.46%0.12730.11866.83%
4436.20427.102.10%0.10030.09138.97%