Page 479 - Marine Structural Design
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Chapter 25 Reliability of Ship Structures 455
propagate, but it should be paid attention on their potential disasters during inspections. The
unsteady propagation of fatigue cracks might induce to catastrophic event of the FPSO.
Simply adding the extreme values of SWBM and VWBM is quite conservative. It can be
found in Figure 25.6, where "LC" and "NLC" represent the load combination and no load
combination respectively.
1 .oo
0.98
0.96
0.94
0.88
0 5 IO I5 20 25 30 35
t, years
Figure 25.6 Influence of Load Combination on Conditional Reliability
I .oo
0.99
0.98
s 0.97
0.96
0.94
0 5 10 15 20 25 30 35
t, ye=
Figure 25.7 Influence of ESFs on Conditional Reliability
