PSI - Issue 13

Stanislav Seitl et al. / Procedia Structural Integrity 13 (2018) 1494–1501 Seitl et al./ Structural Integrity Procedia 00 (2018) 000–000

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a) b) Figure 5 Experimental results of the crack propagation rate and description of fatigue properties using Paris law for 50% probability of failure

a) b) Figure 6 Experimental results of crack propagation rate and description of fatigue properties using the probabilistic model (ProPagation) for 50% probability of failure The experimental results obtained are important for sensitivity analysis of civil engineering steel structures under fatigue load (Kala 2017, Kala eta al 2017, Kala & Omishore 2016,) and fatigue failure analysis (Krejsa et al. 2016, Krejsa et al. 2017, Krejsa et al. 2018), Allen (2018), when the fatigue properties are utilized as input parameters. Table 3. Parameter values of the crack propagation rate using the Paris law and Gumbel family distribution for S355 J0 steel grades. Paris’ law Gumbel model Steel grade Rolling direction C m R 2    K th  K up S 355 J0 A 7e-9 2.7472 0.9543 -7.5479 4.44 1 100 -7.3639 3.78 1.5 90 -7.5194 3.21 2 70

-7.3123 -7.1076 -7.2705

4.90 4.20 3.59

1

100

B

5e-9

2.9482

0.954

1.5

90 70

2