Issue 71

E. Kormanikova et alii, Fracture and Structural Integrity, 71 (2025) 182-192; DOI: 10.3221/IGF-ESIS.71.13

[mm]

15

0 15 30 45 60 75 90

F [N]

12

9

6

3

δ [mm]

a [mm]

0

0

3

6

9

12

15

50

60

70

80

90

Figure 10: Load - relative displacement diagram.

Figure 11: Relative displacement - crack length diagram.

90

1,2

F [N]

ζ [-]

75

0,9

60

45

0,6

30

0,3

15

a [mm]

t [s]

0

0,0

50 55 60 65 70 75 80 85 90

0,0

0,2

0,4

0,6

0,8

1,0

Figure 12: Load - crack length diagram

Figure 13: Cohesive damage - time diagram.

σ y [MPa] 223.0 227.4 234.7 244.2 244.8 246.9 246.7 246.6 248.4 248.1 248.3 250.8 259.8 271.3

σ coh [MPa]

a [mm] 50.25 50.3 50.35 50.55 50.6 50.7 51.666 54.166

F [N] 73.96 75.35 77.69 80.51 80.63 80.87 79.58 75.88 69.00 63.62 59.12 55.73 54.12 50.24

time [s]

δ = 2 u [mm]

0.25 0.26 0.27 0.28 0.29 0.30 0.35 0.41 0.56 0.65 0.74 0.84 0.93 1.00

0.25 0.26 0.27 4.01 4.15 4.30 5.02 5.88 8.02 9.32

73.26 57.37 63.77 68.82 73.89 74.73 70.91 67.5 74.67 70.91 73.13 65.01 64.07 73.43

60.0 65.0 70.0 75.0 80.0 90.0

10.60 12.04 13.32 14.30

Table 2: Numerical results in chosen time steps.

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