Issue 47
Yu. G. Matvienko et alii, Frattura ed Integrità Strutturale, 47 (2019) 303-320; DOI: 10.3221/IGF-ESIS.47.23
Specimen’s notation Loading cycle number C N Lifetime, %
T5_20H
T5_13H
T5_16H
T5_12H
T5_18H
T5_19H
T5_17H
0 0
1000
2000
3000
4000
5000
6000
16
32
48
63
79
95
1 , mm a 2 , mm a 3 , mm a 0 ,μm v 1 ,μm v 2 ,μm v
2.30 4.36 6.27
2.04 4.09 5.76
2.14
2.23 4.02 5.77
2.15 4.08 5.81
2.21
2.05 4.00 5.94
4.0
4.0
5.89
5.63
–9.69
–2.95
–5.23
–3.99
–5.32
0
0
7.41
4.94
3.23
4.37
4.85
–2.66
–3.61
16.53
13.97
14.73
15.01
14.30
9.88
9.31
K K K
1 , MPa m I 2 , MPa m I 3 , MPa m I
–2.6 8.85
–2.4
–4.8
–2.9 6.45 12.3
–3.0
0
0
5.3
5.1
6.7
1.7 9.0
–1.3
16.05 –58.7
11.8 –4.0
12.4 15.8
12.5
9.9
1 , MPa T 2 , MPa T
6.3
–10.8
–14.6 –96.5
–14.3 –65.3
–141.8
–136.9
–95.5
–142.1
–121.6
Table 3 : Nomenclature of T5-H1 specimens and the cycle number.
Specimen’s notation Loading cycle number C N Lifetime, %
T5_21H
T5_22H
T5_23H
T5_24H
T5_25H
T5_26H
T5_27H
1000
2000
3000
6000
9000
12000
15000
0.063
0.13 2.35
0.19 2.56
0.38 2.52
0.57 2.55
0.76 2.62
0.95 2.44
1 ,mm a
2.36
2 ,mm a
4.25
4.20
4.75
4.59
4.55
4.86
6.60
3 ,mm a
6.16
6.24
6.66
6.61
6.38
6.39
8.39
0 ,μm v
0
0
0
0
0
0
0
1 ,μm v
6.2
7.13
10.74
10.17
10.64
10.93
4.66
2 ,μm v
15.9
16.72
18.05
18.43
18.61
15.87
18.62
K
1 , MPa m I 2 , MPa m I 3 , MPa m I
0
0
0
0
0
0
0
K K
7.5
8.1
10.1
8.9
11.4
10.3
3.4
12.6
14.4
15.6
14.7
18.2
15.6
18.8
1 , MPa T 2 , MPa T
–28.9
–34.2
–38.2
–39.2
–47.9
–45.6
–31.6
–129.6
–124.7
–162.3
–138.0
–167.5
–197.2
–104.0
Table 4 : Nomenclature of T5-H2 specimens and the cycle number.
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