ML041410138
| ML041410138 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 04/28/2004 |
| From: | Davant G Entergy Operations |
| To: | Alexion T NRC/NRR/DLPM/LPD3 |
| Alexion T W, NRR/DLPM, 415-1326 | |
| References | |
| Download: ML041410138 (4) | |
Text
F Thomas Alexion - FW: Revised Figure 6 & Table 1
. ?#ge A
From:
"DAVANT, GUY H' <GDAVANT~entergy.com>
To:
"'twa~nrc.gov"' <twa~nrc.gov>
Date:
4/28/04 4:11 PM
Subject:
FW: Revised Figure 6 & Table 1
- Tom, The attached file contains the two revised sheets we spoke of on the telephone today. The revision was necessary because the SIA internal independent review discovered an error in the value used for the Young's modulus (E) at operating temperature for calculating J. The value used in the initial analysis (results discussed yesterday) was 30
- E6 psi. The correct value is 28
- E6 psi. This change affects both Figure 6 and Table
- 1. Specifically, the values given for Jtotal in Table 1 increase slightly; and on Figure 6, the box representing SF = 3 on the J-T Applied line moves up the line slightly. Figure 6 now shows that the 94 ft-lb curve falls slightly below the SF = 3 point. The 94 ft-lb curve remains well above the SF = 3, 1.5 point on the J-T Applied line.
In addition, based on NRC comments from yesterdays call, we have modified Table 1 by removing the column titled "J' @ JIT = 50" and adding a column "J
@ instability".
Please let me know if you have any problems with this file. You may docket this information, as needed.
Thanks!
Guy
> <<Revised SIA table and figure 6-- 04-28-04.pdf>>
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FW: ReVised Figure 6 & Table 1 4/28/04 4:05PM "DAVANT, GUY H" <GDAVANT@entergy.com>
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Table 1: J-T Computations for ANO-1 Top Head Remnant Crack using ASME Section Xi Appendix K Approximate Method
'Safet.l-K,l 1
uK Ir aS K K'total to ksi'linW In:
inches,., _
________n SF=1 3.7 90.7 94.4 0.131 1.631 1.043 98.4
- SF=3, 1.5 11.1 136.1 147.2 0.319 1.819 1.101 162.0 SF=2 7.4 181.4 188.8 0.525 2.025 1.162 219.4 SF=3 11.1 272.1 283.2 1.182 2.682 1.337 378.7 SF=3.5 13.0 317.5 330.4 1.609 3.109 1.440 475.6 SF=4 14.8 362.8 377.6 2.101 3.601 1.549 585.1
'Factor,-.
siin-"kipslin SF=1 3.7 90.7 94.4 98.4 0.315 0.916 4.4
- SF=3,1.5 11.1 136.1 147.2 162.0 0.853 2.483 4.4 SF=2 7.4 181.4 188.8 219.4 1.564 4.551 4.4 SF=3 11.1 272.1 283.2 378.7 4.660 13.559 4.4 SF=3.5 13.0 317.5 330.4 475.6 7.353 21.392 4.4 SF=4 14.8 362.8 377.6 585.1 11.125 32.367 4.4
- Appropriate Safety Factor case for ductile material: SF=3 on primary, 1.5 on secondary
12 10 i
8-SF=3.5 4-r 2
-S 2-------
.E, 0
20 40 60 80 Tearing Modulus 100 120 140 Figure 6-Results of EPFM Stability Analysis for ANO-1 Top Head Remnant Cracking Concern