Research Article
Probabilistic Structural Integrity Analysis of Boiling Water Reactor Pressure Vessel under Low Temperature Overpressure Event
Table 3
The maximum 32 and 64 EFPY neutron fluence on beltline major regions.
| | Material ID | Major region | Ratio to max.
neutron flux | Neutron fluence
for 32 EFPY
(1019 n/cm2) | Neutron fluence
for 64 EFPY
(1019 n/cm2) |
| | Axial welds | W-1001-07 | 1 | 0.49 | 0.0478 | 0.0956 | | W-1001-08 | 2 | 0.99 | 0.0845 | 0.1690 | | W-1001-09 | 3 | 0.66 | 0.0564 | 0.1128 | | W-1001-10 | 4 | 0.39 | 0.0333 | 0.0666 | | W-1001-11 | 5 | 0.278 | 0.0237 | 0.0474 | | W-1001-12 | 6 | 0.505 | 0.0431 | 0.0862 |
| | Circumferential weld | W-1102-3 | 7 | 0.561 | 0.0479 | 0.0958 |
| | Plates | SC-03-S3 | 8 | 1.00 | 0.0854 | 0.1708 | | SC-03-S2 | 9 | 1.00 | 0.0854 | 0.1708 | | SC-03-S1 | 10 | 1.00 | 0.0854 | 0.1708 | | SC-04-S1 | 11 | 0.55 | 0.0470 | 0.0940 | | SC-04-S3 | 12 | 0.55 | 0.0470 | 0.0940 | | SC-04-S2 | 13 | 0.55 | 0.0470 | 0.0940 |
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The maximum values are 0.0854 1019 n/cm2 and 0.1708 1019 n/cm2 for 32 EFPY and 64 EFPY, respectively.
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