Skip to main content

Table 1 Composite excitation under different preloads

From: Competitive Failure of Bolt Loosening and Fatigue under Different Preloads

Preload FT,a (mm) FA,a (kN) R (mm/kN) Number of valid specimens
F0.3 0.5 10 0.05 3
0.6 0 - 4
0.6 2 0.3 3
0.6 3 0.2 3
0.6 4 0.15 4
0.6 6 0.1 3
0.6 8 0.075 3
0.6 10 0.06 3
0.8 8 0.1 3
0.8 10 0.08 3
F0.4 0.5 10 0.05 2
0.6 0 - 2
0.6 2 0.3 3
0.6 3 0.2 2
0.6 4 0.15 2
0.6 6 0.1 2
0.6 8 0.075 3
0.6 10 0.06 3
0.8 8 0.1 2
0.8 10 0.08 3
1.0 10 0.1 3
F0.5 0.5 10 0.05 3
0.6 0 - 4
0.6 2 0.3 4
0.6 3 0.2 3
0.6 4 0.15 5
0.6 6 0.1 3
0.6 8 0.075 4
0.6 10 0.06 4
0.8 8 0.1 3
0.8 10 0.08 3
F0.6 0.5 8 0.0625 3
0.6 0 - 2
0.6 2 0.3 5
0.6 4 0.15 5
0.6 6 0.1 3
0.6 8 0.075 3
0.6 10 0.06 3
0.8 8 0.1 3
0.8 10 0.08 3
  1. Note: FT,a is the transverse displacement amplitude, FA,a is the axial load amplitude, and R is the ratio of the transverse load to the axial load, R = FT,a/FA,a