PSI - Issue 28

Wojciech Macek et al. / Procedia Structural Integrity 28 (2020) 1875–1882 Author name / Structural Integrity Procedia 00 (2019) 000 – 0 0

1879 5

Fig. 4. Fracture surfaces of the mass side for the specimens tested in this study for different values of the  ratio (M refers to the mass side and the two-digit number refers to the value of the  ratio of the test, e.g. M90 corresponds to  =90% for the mass side of the broken specimen). Higher  ratios correspond to lower degrees of fatigue damage and vice-versa.

20

increasing fatigue damage

15.7

14.9

15

13.2

12.7

12.5 12.2

9.6 9.7

10

F (kN)

4.4

5

0

90 85 80 75 70 65 60 55 50



Fig. 5. Maximum applied force of the monotonic tensile tests versus  ratio. Higher  ratios correspond to lower degrees of fatigue damage and vice-versa.