PSI - Issue 4

S. Romano et al. / Procedia Structural Integrity 4 (2017) 87–94 S. Romano / Structural Integrity Procedia 00 (2017) 000–000

92

6

10 0

perc. i+1

perc. i

10 -1

10 -2

50% K Jc

10 -3

10 -4

10 -5

da/dN (mm/cycle)

10 -6

10 -7

10 -8

6 7 8 9 10

20

30

40

a

b

∆ K

app (MPa m)

c Fig. 6. (a) Random extraction for K JC ; (b) evolution on FAD; (c) Comparison between full Monte Carlo and simplified approach (10

6 extractions).

Fig. 7. Simulation of the propagation after a prospective inspection in April (50 TAFs per day, a 0 = 0 . 9 mm , a 0 / c 0 = 0 . 4)

the di ff erence ( T N − T min ) (neutral temperature - minimum temperature). This was verified by considering di ff erent prospective locations with the same T N − T min .