Table 3 The maximum von-Mises stress (MPa) on the screw of S0, S1.5, S2.0 and S2.5 due to four loading conditions
Loading | Screw | ||||||||
|---|---|---|---|---|---|---|---|---|---|
S0 | S1.5 | S2.0 | S2.5 | ||||||
Left | Right | Left | Right | Left | Right | Left | Right | ||
Rotation | |||||||||
L3 | 4.6 | 8.2 | 6.2 | 11.0 | 5.5 | 9.7 | 6.5 | 11.3 | |
L4 | 5.6 | 7.5 | 4.8 | 4.8 | 8.5 | 20.3 | 10.5 | 21.0 | |
Lateral bending | |||||||||
L3 | 46.7 | 50.6 | 47.7 | 58.4 | 56.7 | 56.7 | 62.2 | 54.7 | |
L4 | 45.0 | 54.7 | 47.7 | 68.3 | 51.1 | 69.2 | 60.8 | 77.5 | |
Extension | |||||||||
L3 | 61.1 | 47.4 | 58.0 | 62.9 | |||||
L4 | 71.2 | 42.8 | 51.5 | 57.8 | |||||
Flexion | |||||||||
L3 | 61.1 | 62.0 | 71.6 | 78.1 | |||||
L4 | 71.2 | 74.0 | 82.9 | 89.6 | |||||