Table 2 The maximum displacement of the 4 models

20N axial compression

0.403 mm

0.386 mm

0.301 mm

0.248 mm

50N axial compression

1.007 mm

0.966 mm

0.837 mm

0.431 mm

1 N∙m torsion moments

0.176 mm

0.137 mm

0.156 mm

0.043 mm

1 N∙m lateral bending moments

0.400 mm

0.355 mm

0.800 mm

0.687 mm

1 N∙m extension bending moments

0.799 mm

0.676 mm

0.391 mm

0.248 mm