ML20115B685
| ML20115B685 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 03/02/1992 |
| From: | TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| Shared Package | |
| ML20012G195 | List: |
| References | |
| 2-NP-GENX-544, 2-NP-GENX-544-R, 2-NP-GENX-544-R00, NUDOCS 9210160197 | |
| Download: ML20115B685 (37) | |
Text
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ENCLOSURE 4 2Ep4c. !
TXX-92353 CALCULATION TITLE PAGE nEvlsicN 2
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TOTAL NCL OF PAGE3_32_
CALCULATION CLAS&lFICATICNS; PICCt!CILIATICN CP LOCAL S' PIES EVALUATIC11 USING ME215 ANALYSIS QQ Ct. ASS I or il O NCN SAFETY c.fitGU y ON ICENTIFICATICH CRGAN(ZATICN:
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8-29-91 __ NUME'R*
ME215 l 0 l
$ 2 SDU80 : (ME101 TEST) TM4912 i
! 8-29-91 '
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- Ditto - TIO254 8-29-91 ME21S 1 ; 0
- Ditto - TD0106 i
9-29-91 ME215 0 - Ditto - s93507 k 9-20-91 ME215 0 -
Ditto - KD5727 9-19-91 ME215 0 -
Citto - JW5555 9-19-91 _.ME215 0 -
Ditto . JQ2050 9-19-91 ME215 0 - niten 9-19-91 JU3147 ME215 0
- Ditto -
- '#0r unique tdentification numoer JC3800
- 1) Mandatorv
- 2) Optional as appropriate More Cecputer Run Listing on !! ext P t.
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CALC. NUMBER REVISION ADD / DELETE i
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2EP-5.08-3, Revision 2 Rec. Type Code: 5A.100
OEP-5.08 Revision 2 t Page 1 of 1 ,
FIGURE 7.4
! COMPUTER OUTPUT / CROSS REFERENCE
, ORGAN!:ATION: '
- 0B NO.
CALC NO.2 GENX-544 __
REV. __ 0 pggg _ 3 _
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' COMPUTER RUN UNIOUE IDENTIFIER l tJOB DATE PROC. NAME2 i 4 VERSION / LEVEL.2 l LIBP.ARY NAME2 COMPUTER ADD /
1J08 OEi.E;E 9-19-91 ME215 g_ 0 NUM83R*
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ME215 0 I - Ditto - NH345C 9-19-91 ME215 0
- Ditto - J02937
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i 9-19-91 JO3032 i ME215. 0
- Ditto - JQE852 9-21-91 ME215 0
- Ditto - LE3805 1
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- Ditto - NH5149
or untque identtitcation nuacer l 1) Mandatory ~
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FIGURE 7.4 COMPUTER OUTPUT / CROSS REFERENCE BECHTEL,PSAS ORCAN!!ATION:
CAL; NO.: 0B NO. 20935 CEW-544
- REV. O PACE _ 4 t x COMPUTER RUN UNIOUE IDENTIFTER .
f1JOBDATE PROC. NAME2 1 VERSION / LEVEL 2 -
I LIBRARY NAME2 COMPUTER ADD /
1J05 DELETE 10-01-91 ME215 NUMETR* i 0
l 10-01-91 52 SDUD0 s iME101 TEST) 1U0752 ME215 0
- Ditto - 1P1906 l 9-19-91 ME215 0
! - Ditto - JF0336 9-18-91 ME215 0
- Ditto - IV2129 10-01-91 ME215 -
- Ditto -
9-20-91 _ ME215 1W2737 0
- Ditto -
9-19-91 ME215 KB,4623 0
- Ditto - JA0450 9-20-91 ME215 0
- Ditto - KC5149 var unique toentitteation nuacer
- 1) Mandatory
- 8) Optional, as appropri:te More Computer Run Listing on Next Pg.
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FIGURE 7.t.
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, CROSS REFERENCE g CALC. TYPE ,
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2EP-5.08-3, Revision 2 Rec. Type Code: 5A.100
CALCULATION SHEET i
- f PROJECT COMANCHE PEAK STEAM ELECTRIC STATION CALC. NO _ Jos No. UNIT 20935 2 2-NP GENX 544
Subject:
. ft ,,
a Reconciliation on Local Stress Evaluation Using ME215 AnahsisREV. ,,,
i TABLE OF CONTENTS TITLEPAGE......'................................................................................... 1 COM PUTER O U TPUT/ CROSS S ECTION ............................................
1 2
TA B LE O F CO NTE NTS . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . 6. . . . . . .
i l 1. \
PURPOSE......................................................................................... 7 l 2.
B AC KG R O U N D . .. . .. .............. . ... . .. .. . ... . .....
s
...................................... 7 i
3.
1 EVA L UATIO N M ETH O D . . . . . . . . . . . . . . . . . . . . . . . . . . .9 . . . . . . .
i 4.
1 R E S U LTS/ CONC LU S ION S .. .. . . .. ... . . . . . . . . . . . . . . 11 . . .. . . . .. .i 2
5.
M ETHO D OF R ECONClJATION ... ..... .. . .. . ....... .. ......... ............. 14 ......
6.
RECONCILIATION OF EXISTING ME215 ANALYSIS ............... 16 .......
7.
TA B L E A N D FIG U R ES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 ...........
j 8.
REFERENCES................................................................................... 25 ATTACH M ENT A . ............ ............
4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
. . pages 1
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CALCULATION SHEET PROJECT CALC.NO COMANCHE MP.GENX 544 PEAK STEAM ELECTRIC STATION UNIT 2_ JOB No.
Subject:
REV. Q, PAGE 7 Reconciliation on Local Stress Evaluation Using ME215 Analysis 1.0 PURPOSE The purpose of this generic calculation is:
(1) To evaluate the adequacy of the pipe element size generated by ME215 automatic mesh generator near a pad area.
(2) To establish a methodology of using ME215 results for local stress evaluation if tiie pipe element size is determined not to be adequate.
(3) To reconcile previously completed ME215 analysis results, if required, against the methodology established in this generic calculation.
2.0 BACKGROUND
2.1 When integral Welded Attachments (lWA's) are evaluated using ME215 analysis, the basic evaluation procedure is as described below:
111_M M t!iGQ The size / dimensions of the attachment, the run pipe and the pad, if exists, are modelled to represent their actual dimensions. For (WA's with an all around pad, an equivalent pipe with the pad thickness and OD dimensions may be used to represent the pad and the run pipe if following requirements are met:
1
- The pad size meets the minimum edge distance requirement of Section 5.2.1.2 or 5.3.1.2 of 2EP 5.12. That is: !
L, > L, + 3 Q 1
where L,, R, and T, are the length, outside radius and thickness of !
the reinforcing pad, respectively, L, is the attachment longitudinallength 4
- The attachment is welded to the pad, and it's centerline coincides with the geometric center of the surface of the pad.
- The pad weld is not less than 1.09 times the nominal thickness of the pipe.
CALCULATION SHEET PROJECT CALC.NO COMANCHE 2-NP.G ENX-544 PEAK STEAM ELECTRIC STATION.Utf[LL JOB NO. 20935
Subject:
REV.. O PAGE 8 Reconcillation on Local Stress Evaluation Using ME215 Analysis (2) Allowable Stressy Material allowables (S, Sn, S,, Sy ) used may be based upon the material of the rtem for which a stress evaluation is being made, rather than the lowest of all. Additionally, the allowables and the methodology used for weld evaluations may be based on ASME Code Cases N 318 and N-392.
(3) loca! Discontinuity Stress Evaluation The local stresses at attachm:nt to pad and pipe-to-pad junctions are checked. The maximum attachmJnt, pad and pipe stresses are checked against the allowable stresses of each respeedve item.1hese local '
stresses at attachments and pads are directly found from ME215 results.
The local pipe stress at the pipe to pad is taken as the higher of the stresses calculated at the pipe / pod interface (i.e., reprecenting the weld) or the pipe stress from ME215 results. For IWA's with an all around pad, wnen the ' equivalent pipe model* method is used, the stresses at pipe-to pad junction are calculated by using the stresses intensification factor for a fillet weld connection and pipe moments at each respective juncture.
(4) Pad Weld Stress Pad welds are qualified per Attachment 4-2 of 2EP-5.13. The pipe / pad interface (weld stress) from the ME215 output are not used for weld qualification. The higher of the pipe / pac, interface (weld stress) or the pipe stress from ME215 resutts is considered as pipe local stress and used for IWA local stress evaluation. '
2.2 in the ME215 analysis, the element mesh size is generatad automatically.
The ynerated element sizes are adequate at welds, attachments and pads.
However, the element size at the pipe near a pad is relatively coarse and hence may result in less conservative calculated stresses. This only occurs when the welded attachment has a reinforcing pad and the pad is:
-' - not a wrap around 360 degree pad, or
- a wrap around 360 degree pad but the ' equivalent pipe model' option is not chosen 2.3 Wrth the exception of the relatively coarse pipe element near a pad, analyses using ME215 computer progrs.rn are conservative in the following manner:
I CALCULATION SHEET PROJECT COMANCHE CA1.C, NO 2.NP GENX M4 PEAK STEAM ELECTRIC STATION UNIT 2__ JOB N
Subject:
REY. __Q J 4GE 9 Reconcillation on Local Stress Eva!uation Using ME215 Anatysis (1) in performing ME216 analysis, two loading conditions are considered for eaoh load case. One loading condition applies three moments simultaneously. The other condition applies three forces simultaneously.
The total calculated stresses are the absolute summation of the calculated stresses from these two loading conditions. Thus the potential counteracting effect of the actual combined stresses from forces and moments are avoloed. In addition, the maximum calculated stresses from these two separate loading conditions are assumed to occur at the same location (element).
(2) ME215 model does not consider the interacting effect between a pad and the pipe. The applied load is transmitted from the pad to the pipe through the pipe / pad interface (wetri) only. There are no gap elements between the pipe and the pad which would provide for the pipe to directly share some of the applied loads. This tends to maximize stressos on the pad weld and the local pipe area surrounding the pad weld. For simplicity, the stresses in the FEA modelin the area of the l pipe / pad interface are referred to as the " weld stresses' even though they are not used in the weld evaluation.
(3) The higher of the weld stress or the pipe stress from ME215 resuits is used to represent the local pipe stress in that area. The weld stress is typically bounding when the pad weld size is smaller than the nominal pipe wall thickness. When the pad weld size is greater than the pipe wall thickness, two or more layers are usualty speerfied for the pad weld in the ME215 analysis model. Since the higher of the weld stross or the pipe stress is used, the calculated pipe stresses by ME215, are not expected to be relevant to the local stress evaluation since the weld stresses typically control.
(4) lhe pipe minimum nominal stress (MNS) is combined with the pipe local stress calculated by ME215. In the ME215 analysis model, both ends of the run pipe are assumed fixed. For anchors, this results in calculated i
local stresses which include the effect of the moments of the run pipe from both sides of the anchor. Thus, the pipe MNS stresses are over-9 accounted for in the final stress evaluation.
3.0 EVALUATION METHOD The method of evaluation of the pipe element size, when p6ds are used, uses the following approach:
(1) Determine whether the calculated local stresses at the pad to pipe we!d would be goveming for that location in all cases.
i
CALCULATION SHEET PROJECT COMANCHE PEAK STEAM ELECTRIC STATlON CALC. NO JOBUNIT NO. __220935 2 NP GENX 544
Subject:
REV_, Q_PAGE 10 Reconciliation on Local Stress e valuation Using ME215 Analysis (2) The maximum s'resses (the higher of the weld stresses or the pipe local stresses), at pipe / pad junction, calculated by ME215 are compared to ANSYS results at pipe elements to establish the level of conservatism in ME215 analyses.
(3) Establish a mett'od of reconcillation of the ME215 anstysis results if the results of iteme conservatism. 1 and 2 above could not establish an overall level of Two basic F.E. models are used to perform this evaluction. One niodel represents the case in which the size of the pad weld is smaller than the pipe wall thickness. The second model represents the case in which the size of the pad weld is Dreater than the pipe wall thickness. In each of the two basic models the other parameters are selected such that the stresses on the pad / pipe juncture are maximized. The pad thickness is taken to be thicker than the pipe wall thickness and the pad length is such that the distance between the surface of the attachment and the edge.of the pad is less than decay length
//fG. The actual pipe and pad size used in the analyses are:
Pipe outside diameter: 3.5'; Th'+ ess of the pipe: 0.216' Pad size:
6' (length) x 7' (180 u;ee) x 0.75' (thickness) l In ANSYS analyses, gap elements are used betwee the pad and the ripe. The pipe element size near pad weld is 0.25" (compared to (Fr of 0.615'; which is small enough so that the calculated local stresses are realistic.
l ME215 Models In variations of different pad weld element mesh size and loadings on the two basic models discussed above, a total of five (5) configurations and twenty six (26) separate load cases as shown in table 7.4 are used to perform the ME215 analyses, in the five (5) configurations three (3) configurations are for V pad weld size with 1, 2, and 3 No. of layers and two (2) configurations are for 3/16-pad weld with 1 and 2 No. of layers. The higher stresses of pad welds or pipe elements from ME215 results are compared to those of pipe elements from comparable ANSYS resutts. Among the twenty six load cases used, eighteen (18) load cases are used br the purpose of direct comparison of the results, three (3) load cases are used for the purpose of validating the proposed reconciliation method and the remaining five (5) load cases are used for both purposes sa shown in Tables 7.2 ano 7.3 of Section 7.0.
w e
,i CALCULATION SHEET PROJECT. COMANCHE CALC.NO MP-GENX444 PEAK STEAM ELECTRIC STATION 20935 UNIT 2_ JOB NO.
Subject:
_ REV. O PAGE 11 Reconciliation on Local Stress Evaluation Using ME215 Analysis _
,ANSYS Modthi Since pad weld mesh size has little effect on the stresses at pipe elements, o one pad weld element roesh size (one layer) is used in the ANSYS models. The type of element used is STIF45 3D isoparametric element. Thus, the number of configurations analyzed by ANSYS is lirded to the two basic models discussed above. Twelve (12) load cases are used in conjunction with the ANSYS models which are sufficient to compare to those described for ME215 analysis above.
See table (7.4) for cross referencing of ANSYS to ME215 load cases.
4.0 RESULTS/ CONCLUSIONS 4.1 Comparison of ANSYS and ME215 Analysis Results 4.1.a Comparison of Local Membrane Stress intensity, Sl(M)
The results from the twenty three (23) load cases from ME215 analysis are compared to the re;ults from it,o corresponding ten (10) load cases of ANSYS analyses in Table 7.1 of Section 7.0. ME215/ANSYS stress ratios as high as 2.141 are indicated by the table. These indicate that ME215 provides more conservative local Membrane Stress Intensities Sl(M) than ANSYS for all cases except in the load case where three forces of Fx = Fy = Fz = 1000 lbs are applied, in this case, the results of ME215 are slightfy less conservative (stress ratio of ME215/ANSYS is 0.950). The results of th!s comparison are reasonable because:
(1)
Local membrano (across wall) stresses decay much; slower than bending stress (page 471 of Ref. 8.4). Thus, the element size has little effect on the membrane stress than on the bending stresses.
(2) The pad and pipe wa!! interact with each other in the normal direction, thus, consideration cf the interaction effect in ANSYS (using gap element) reduces local membrane stress, Sl(M).
4.1.b Comparison of Membrane Plus Bending Stress Intsnsity, Sl(M+B)
For the load cases evaluated, the higher of the man'.brene p!us bending stresses at pipe or pad weld element from ME215 analysis are compared with the corresponding load cases at pipe element from ANSYS analyses. The reseb are shown in Table 7.2 of Section 7.0.
In general, the ratios of ME415 (enveloped pipe and pad weld)/
ANSYS (pipe) local strosses in the pad-to-pipe juncture area is either
\
CALCULATION SHEET PROJECT COMANCHi2 CALC.NO 2 N.* GE' IX444 PEAK STEAM ELECTRIC STATION UNIT.2_ JOB NO _ , _ , i
Subject:
REV. 1 FAGE- 12 !
ReconMation on Local Stress Evaluation Using ME215 Arialysis greater than or slightly below unicy, ror combined forces, and ccmbined moments, when these combined forces, or momente are constituents of equal values. Table 7.2, however indicates that for individual moment components, the ratio varies, with ME215 pad wJd results underestimating the local stresses M the pipe based on ANSYS by up to 26.6% for the My direction of moment. ME215 results for tne pad weld stress for the other moment directions are consistent with those from ANSYS, it is therefore concluded, that the ME215 results may underestimate the pipe wall stresses if the My component loading dominates those from tr- other moment direction, Thus, a
- reconciliation methodolt 3. is developed and included in this GENX to provide guidance on re 7 liatico and ese of ME215.
The following discussion pertains to relevant aspects of this coq,srison:
(1) The effect of me gap on the interaction between the pad and the pipe has greater beneficial results under the circumferential moment loading than those under tne longitudinal moment loading because the interacting normal force between the pad and pipe can share the loads more effectively for the circumferential moment loading case than fo, the longitudinal moment Icading case.
(2) The pad size was purposely selected much thicker than the pipe, the beneficial effects of the gap in the ANSYS runs are c6inimized, in raal applications, the ratio of the pad thickness to the pipe wall thickness will be smciler than those use in this GENX.
(3) The membrane plus bending stress intensities, Sl(M +S), from ANSYS results are calculated from the element surface and have not been linearized (across solid wall section) while those from ME215 results have. In ME215, the two stress components wnich exhibrt bending characteristics along the class lines (across wall thickness) are linearized. The linearized stresses at discontinuity location, in general, are lower than the corresponding surface (no'1-linearized) stresses. Therefore, the maximum stress ratios reported in Table 7.2 of Section 7.0 are more conservative than if those stres9 ratios et+'s based on surface (non linearizad) stresses fror,i ME215 results. !n the analysis model considered in this evaluation, one layer is used for i the pipe wall elements. For pipe wall made up of one layer, the '
difference between the linearized stress and the surface stress is minimal.
4 CALCULATION SHEET PROJECT COMANCHE CALC.NO 2 NP4ENX-544 PEAK STEAM ELECTRIC STATION UNIT _2_ JOS NO.
20935
Subject:
REV._Q_,PAGE 13 Reconcillation on Local Stress Evcluation Using ME215 Analysis (4) Since the local stresses calculated per the project criteria are i
combined stresses which include the local effect and pipe stress *
(MNS), '.he combined stress rados (ME215+ MMS /ANSYS+ MNS, ME215+ MNS/ANSYS) are calculated and shown in Tables 7.1 and 7.2. Stress ratios of combinod stresses (ME215+ MNS/
ANSYS + MNS) indicate that the maximum difference between the two methods was 7sduced to 15.6% (as shown in Table 7.2). In fact, the results of both ANSYS and ME215 analyses have already included the effect of pipe stresses (MNS). Therefore, the adequacy of ME215 approacn may be demonstrated based on the stress ratios of ME215+ MNS/ANSYS as shown in Tables 7.1 and 7.2. It is noted that in this case all stress ratios from moment loading are greater than 1.0, which indicates that the overall ME215 analysis approach (see section 2) is conservative and adequate.
Ac shown, the ME215 results are, in general, very conservative except under longitudinal moment loading. The stress ratios under longitudinal moment loading are not Ps conservative as those under other loadings. This underconservatism, is however outweighed by the fact that the analysis approach overaccounts for the MNS. In order to provide additionci conservatism for ME215 epproach, it is recommended that the resuKs of ME215 be edjusted in accordance with the approach suggested la Section 5.0, when the longitudinal ~
moment load are dominant over torsional or circumferential moment.
4.2 Conclusion The local membrane stresses from ME215 analysis results under moment loadings are conservative. The contribution of the lccal stresses from "3 forces" is small compared to those from momerns, therefore, the local stresses evaluation for those code equations using ME215 analysis results are valid with no reconciliation required.-
The membrane plus bending stresses Sl(M+ B), from ME215 analysis results are in general reasonably nonservative. However, if the contribution from the longitudinal moment loading is dominating, the calculated membrane plus bending stress using ME215 results at the pad weld to represent the piping local stress may be less conservative. To accouit for the possibility of this unconservatism, the ME215 membrane plus bending stress results should of be this GU.HX. reconciled in accordance with the method out'ined in Section 5
CALCULATION SHEET PROJECT COMANCHE PEAK STEAM ELECTRIC STATION UNIT, 2_, Jos No. 20935 cal.C.NO 2-NPMNX 544
Subject:
_ RFV._Q_,PAGE 14 Reo*1ciliation on Local Stress Evaluation Using ME215 Analysis 1 5.0 METHOD OF RECONCILIATION 5.1 IWA local stress evaluations using ME215 analysis need not be reconcited if one of the following conditions exist:
} (1) The IWA does not contain a reinforcing pad.
(2) The MEI.15 analysis results are not used for evaluation of code i equations 10 or 11, or if used, the margin to the allowable of Eq.10 or 11 for pipe or pad weld element is 40% or more (i.e., allowable stress / combined local stress 21.4).
(3) The reinforcing pad is a wrap around 360 degree pad and the i
" equivalent pipe model' as described in Section 2.1 is used in the ME215 analysis.
j 5.2 K the conditions of Section 5.1 above are not met, the ME215 analysis shall be reconciled in accordance with the following procedure (see figure 1 of shachment A):
'. (1) Calcuwe modification factor R, R hmu) ut (mu) uf
! (mu).uf/dul + (uf . (ut s
where: .
l t
R(M,), R(M results from,) table 7.2, considering the No. of layers relationship between the weld size and the pipe wall thickness.
The maximum stress ratios for the %* pad weld size model shall be used for those IWNs with pad welo sizes greater than or equal to the pips wall .
thickness and the 3/16' pad weld size model results shail be usecth IWNs pad weld sizes smaller than the pipe wall thickness.
M,, Myand M, are the circumferential, longitudinal and torsional moment t
loadings in the directions defined by figure 7.1.
(2) If the calculated modi 5 cation factor R value is less than or equal to one l
~
(1.) the ME215 analysis results are conservative, and no reconciliation or further adjustment is necessary. Otherwise continue step (3).
t
. - - __y . . _ . . . _ , _-- . _-- . . _ . . , .-.y_ ...,__w - ,~, -# ,
- , . _ _ _ - -- . .- -- __ . . - - _ _ - ~ - . - _ , _ .
CALCULATION SHEET PROJECT COMANCHE PEAK STEAM ELECTRIC STATION. UNIT 2 _ job No. 20935 CALC.NO 2-NP.GENX 544 _
Subject:
REV. O PAGE 15 Reconciliation on Local Stress Evaluation Using ME215 Analysis (3) Calculate the modified ME215 membrane plus bending local stress, S, by:,
t S = S (force) + R
- S (moment), where S (forco) and S (moment) are ME215 calculated enveloped maximum membrane plus local bending stiesses at pipe and pad weld element under '3 force" and '3 moment
- loadings used in the Equatbn 10 (or 11) evaluations. This modified local stress S shall then be combined with th pipe minimum nominal stress (MNS) in accordance with project procedure to check against the code allowables.
Examples of calculating the modified local stresses for the '3 moment' loading are given in Table 7.3 of Section 7.0. The calculated modified local stresses are compared to the ANSYS results due to the same "3 moment" loading. For the loed cases considered in Table 7.3 of Section 7.0 the modified ME215 stresses are all conservative compared to the 4
corresponding ANSYS results. Table 7.3 demonstrates that the modified local stress using this reconcillation method is conservative.
Although the method of reconciliation derived in this generic calculation is only based on limited finite element anafysis data, it is, nevertheless, considered to be sufficient for following reasons:
(1) Inherent conservatism in the ME215 analysis method as discussed in Section 2.3.
(2) The geometric parameters ( sed in the GENX analysis mordis maximize the stresses 4 the pad to-pipe-juncture. This is because pad thickness considered is much higher than for pipe wall thickness and its length is such that the dictame between the surface of the edge of the .
attachment and the edge of the pad is less than decay length, [ G.
(3) The local stress calculated per the project criteria are combined stresses which include the local effect and pipe stress (MNS), the stress ratios of combined stresses [(ME215 + MNS/ANSYS+ MNS)=0.844) indicate that the maximum difference between the two methods was reduced to 15.6%. In fact, the results of both ANSYS and ME215 analyses have already included the effect of pipe stresses (MNS). Therefore, using factor of 1.4 in the reconciliation procedure is sufficient.
, i CALCULATION SHEET PROJECT COMANCHE C. C. NO 2WP-GENX-544 PEAK STEAM ELECTRIC STATION UNIT 2_._ JOB NO. 2093
Subject:
_ REV. O PAGE 16 Reconciliation on Local Stress Evaluation Using ME215 Analysis 60 RESULTS OF PECONCILI,1. TION OF EXISTING ME215 ANALYSIS As of Dec. 24,1991, a total of twenty two (22) anchors have been qualified using ME215 analysis method. Among the twenty two completed analyses, sixteen do not require reconciliation, as they satisfy the canditions of section 5.1 as follows:
Seven has no pads.
Two are not used for code squations 10/11 qualification.
- Seven have inargins to code equations 10/11 allowables which exceed 40%.
The remaining six analyses are reconciled por Section 5.0 procedure. Refer to Appendix A for the details of the reconciliation. Results of the reconciliation are summarized as follows:
The calculated modification factor R values for four (4) of the six analyse are less than one (1.0).
The calculated modified stress S value-for the two analyses with an R valuo which exceeds 1.0, are less than the stress allowables.
Hence, all completed ME215 analysis as of Dec. 24,1991 are acceptable without a need for revisions to their analyses packages. Future ME215 analysis past Dec.24,1991 should document the results including use of the reconciliation method of Section 5.0.
PROJECT COMANCHE PEAK STEAM ELECTRIC STATION-UNIT JOB 2 NO. 20935 cal.C. NO 2-NP-GENX-544 REV. O PAGE 17
Subject:
Reconcillation on Local Stress Evaluation Using ME215 Analysis l
7.0 TABLES AND FIGURES j The Tables 7.1, 7.2, 1
7.3 and 7.4 and Figures 7.1, 7.2 l
\ and 7.3 are presented on tne following sheets: i e
l 1
)
1 i
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1 i
, , . . . _ _ . . - _ - _ . _ . . _ , _ _ . . _ , . - ~ . . . . . . . _ , ,
- . .. . - - . ~. - - - _ _ . - -. - .- -
PROJECT COMANCHE PEAK STEAM ELECTRIC SMTION-UNIT 2 JOB NO, 20935 CALC. NO 2-NP-GENX-544 REY O PAGE18-1
Subject:
Reconcillatlon on Loct "'ees Evaluation Using WE215 Analysis 1
l Table 7.1 Nombr,ame Stress Intensity , SI(M) , comparison 4
M8215 Analysis Max. Stress
- Loads Stress ! Stress i
AB878 Stress Ratio Ratio (ib.) Ns3 Pad Pad Ratio Naz. Stress Nam. Ratio of og (in-lb.) ( t.s i ) Wold Wold (psi) Stress R of M8215+M38/ N E215 + N 83 / ' M 8215 /
(1) Size Y^. of pad pipe SI(M) A38f8/ A88f8+MW8 Leper ASSTS ASSYS Wold (psi) N5215 3 Forces 0 1/4* 3 2015 1993 2102 1.042 0.960 0.966' O.960 Fa=l?*Fs 2 195. 1995 1.053
=1000 0.950 0.950 - 0.950 0 3/16* 2 2436 '
2000 2102 0.863 1.159 1.159 1.159 3 S27 _432 Mn 0.f95 1.257 2.187 1.439 273 1/4* 2 530 432 366 0.691 per 1.257 2.195 1.447 1 610 426 0.600 1.382 1000 273 3/16* 2.413 1.C67 2 688 446 376 0.547 1.481 2.557 1.828 1 801 440 0.469 1.655 2.857 2.132 3 250 229 0 752 1.134 My 273 1/4* 2.783 1.330 2 253 229 180 0.743 1.141 per 2.799 1.346 1 281 230 0.449 1.202 1000 273 3/16" 2 2.9481 1.495 311 231 270 0.868 1.075 2.164i 1.152 1 347 _,231 0 772 1.142 3 268 285 2.297! 1.285 Ms 0.684 1.192 2.8631 1.462 273 1/4" 2 274 285 195 0.684 per 1.192 2.863) 1.462 1 315 284 0.619 1.256 1000 273 3/16* 3.017 1.615 2 343 291 295 0.860 1.084 2.089 1.163 1 392 189 0.753 1.171 3 Moments 3 2.255 1.328 803 684 0.687- 1.245 Nx=1000 473 1/4* 2 2.3121 1.455 802 684 552 0.688 My=1000 1.244 2.310 1.453 1 912 679 0.605 1.357.
Ms=1000 473 3/16" 2 2.510_ 1.652 1043 702 550 0 537 1.467 2.708l 1.862 1 1200 696 0 467 1 619 2.9881. 2_141 Note (1) 6 MBS is the slaista nominal stress which is equal to half of the applied someat(s) devided by the pipe soottoa modulus.
I l
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1 PROJECT COMANCHE PEAK STEAM ELECTRIC STATION-UNIT JOB 2 NO. 20935 CALC.NO 2-NP-GENX-544 REV. O PAGE 19
Subject:
Meconcillation on Local Stress Evaluation Using ME215 Analysis I
i Yable 7.2 s
Ns**srane Plus sending stress Intensity, SI(M+3), Comparison ME215 Analysis N4E. titress Loads Stress Stress .
AssTs stress & tio Ratio (Ib.) Mus Pad Fad Ratio '
Man. stress Mas. Ratio
} (in-lb.) (psi) Wold Weld (psil stress R
! of og i
(1) Sise ME211+MBS/ ME215+NES/ ME215/
so. of pad pf.pe SI(N+B ]A38YS/ ABSYS+MOS
! s Asst 3 ASSTE
' Layer Wold 12) (psi) ME215 3 Forces 0 1/4* 3217
- 3 2146 2904 0.90 1.108 Fa=Fr=Fs -2 2653 1.108 1.107 2165 1.095 0.914
=1000 0 3/16* 2 3249 0.914 0.913 2201 2952 0.999 1.101 3 971 1.101 1.101 525 0.426 1.406
{ Ms 273 1/4* 2.046 1.597 2 826 525 583 ._ _ 0 . 7 0 6
{ per 1.284 1.886 1.417 1 610 518 0.956 1.032 1000 273 3/16* 2 1943 1.515 1.046 546 665 0.638 1.403 t 1.979 1.568 1 001 538 0.830 l 1.145 1.615 1.215 3 345 282 1.123 Ny 273 0.936 1.598 0.891 l 1/4" 2 296 282 387 1.299 per 0.865 1.476 0.770 281
' 1 284 1.363 0.844 1000 273 3/16* 2 352
__ 1.440 0.734 I 284 452 1.284 ~0.862 1.383 0.779 1 347 285 1.303 3 398 0.855 1.372 fM 341 1.000 1.000 Ms 273 1/4" 1.687 1.000
._2 334 341 398 1.167 0.915 per 1 315 1.543 0.657 340 1.171 0.914
- 1000 273 3/14* 2 1.5411 0.854 l
414 347 475 1.147 0.918 1.447 0.872 1 392 344 1.212 0.889 3 Moments 3 1396 1.401 n.825 864 0.435 1.375 j Mz=1000 473 1/4* 2.110 1.578 2 1233 864 086 0.719 i Ny=1000 1.255 1.926 1.392
' 1 912 854 0.971 Ms=1000 473 3/16*
1.019 1.564 1.029 2 _ 1562 895 069 0.556 1.516 2.342 1.797 1 1200 SOS 0.724 1.2d7 1.926 1.348 Cote (1) mas is the miniana asalaat stress which is equal to half of the l appiled sensat(s) 4evided by the pipe section~noduise.
[2]
The seaboraae plus banding strese istaneities,8t(M+3), from NE215 i analyeis are 11aearised.
1 I .
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1
' PROJECT COMANCHE PEAK STEAM ELECTRIC STATION-UNIT 2 JOB NO. 20935 CALC. NO 2-NP- GENX- 544 REV. O PAGE 20 Subject Reconcillation on Local Stress Evaluation Using ME215 Analysis I
I tthie 7.3 Modified Membrane Flas Em..tlag Stress Intoasity , SI(M+3)
ME215 Stress Ratie, R, of -
Lcate Modi- Modified Stress 138YS/ME215 Wold fled ME215 AN8YS (ib.) Wold No. Due to For Each Moment componest (in-lb.) sise of Leyer Factor Stress Stress Momenti R(Ms) I m(My) R(Ms) (1) (PSI) 3 1396 0.652 1.122 1.000 0.946 (PSI)4 3 Coment 1/4* 2 1320 1233 0.735 1.299
! Ks=1000 1.167 1.094 1349 SSE 1 912 0.995 1.363 1.171 Cy=1000 3/16' 1.188 1082 2 1562 0.725 1.204 1.147 Ms=1000 1.079 1685 869 1 1200 0.944 1.303 1.212 3 QSment 1/4' 3 15931 0.652 1.122 1.000 1_1163 1396 j Ma=2188 1.001 15952 153371 2 13475 0.735 1.299 1.167 Cy=5000 3/16' 1.168 15743 i 2 16707 0.725 1.284 1.147 e s =36715 1.148 19187 16514' a
Note (1) WodWied Factor = [(R(Wu)*Ma) ^ 2 + (M(Wy)'My)
- 2 + (R(Mr* %$ " 2) ^ 0.51/(84: ^ 2 + Wy ^ 2 + Ma ^ 2) ^
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PROJECT COMANCHE PEAK STEAM ELECTRIC STATION-UNITJOB 2 NO. 20935 CALC. NO 2-NP-G ENX-544 i
REV.O PAGE 21 !
Subject Reconcillation on Local Stress Evaluation Using ME215 Analysis i
I i
Table 7.4 Load Cases Definition in MS215 and ANSYS Analyses I HM215 Analysis ANSYS Analysis Loads Pad Wald No. of No. of (ib.) Size Layers Losd Case Layers Load Case (in-lb.) [1] No.
3 Forces
[1] No.
! Fr=1000 1/4" 3 1 1 1 Fy=1000 2 2- 1 Fz=1000 3/16* 2 3 1 2 3 4 1 1/4" 2 5 1
! 3 Mx=1000 1 6' 1 3/16* 2 7 1 4 1 s' 1
~
3 9 1 1/4" 2 10 1 5 My=1000 1 11 1 3/16* 2 12 1 6 1 13 1 3 14 1 1/4" 7 15 1 7 Mz=1000 1 16 1 3/15' [2 17 1 8 1 18 1 3 19 1 3 Moment 1/4" 2 20 1 9 Mx=1000 1 21 1 My=1000 3/16* 2 22 1 10 Mz=1000 1 23 1
3 Moment 1/4" 3_ 24 1 11 Mx=2188 2 25 1-My=5000 3/16* 2 26 1 12 Mz=36715 Note [1] Mo. ot layers are modeled for the pad weld elements.
d PROJECT CALC.NO COMANCHE 2-NP-G ENX-544 PEAK STEAM ELECTRIC JOBSTATION-UNIT NO. 20935 4 REV.O PAGE 22
- Subject Reconcillation on Local Stress Evaluation Using ME215 Analysis Figure 7.1 Straight Pipe to Rectangular Attachment, HE215 Model
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! Outside Diameter PI-D=3.5' Wall Attachments PI-T=0.216' Length AT-D=4.0*
width i
AT-D2=4.0*
Wall Pad AT-T=0.5" Length
?D-L=G.0'
! Width PD-W=7.0*
Thickn.as AT-T=0.75'
! Pad Weld Sizes: 1/4' t. d 3/16"
l PROJECT CALC.NO COMANCHE 2-NP-GENX-544 PEAK STEAM ELECTRIC JOB NO.STATION-UN 20935 REV. O Subject Reconcilisson on Local Stress Evaluation Using PAGE ME215 23 Analysit Figure 7.2 side vi*We AN8YS Model x
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I PROJECT CALC.NO COMANCHE 2-NP-G ENX-544 PEAK STEAM ELECTRICJOB STATION-UNIT NO. 20935 2 REV. O PAGE 24 i
i Subject Reconcillation on LocsJ Stress Evaluation Using ME215 Analysis i
i
- l j Figure 7.3 Isometric Plot, ANSYS Model l
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CALCULATION SHEET PROJECT CALC NO COMANCHE 2 NPMNX444 PEAK STEAM ELECTRIC STATION20935 UNIT 2_ JOS NO l
Subject:
REV, O PAGE _ 25 -
t Reconoliation on Local Stress Evaluation Using ME215 Analysis
8.0 REFERENCES
8.1 Design ' Criteria For Pipe Stress and Pipe Supports, 2EP 5.12, 2EP-5.13, Revision 0, TU Electric Comanche Peak Steam Electric Station Unit 2.
8.2 ANSYS Finite Element Computer Program, Version 4.2,4.3 and 4.4.
8.3 Bechtel Computer Program ME215, Revision 0 - Stress Analysis for Pipe Component and Pipe Support Using Finite Element Method.
i 8.4 " Theory of Plate and Shell', by S. Timoshenko & S. Woinowsky Krieger, Second Edition.
8.5 ASME Boiler and Pressure Vessel Code, Section lil, Division 1 Nuclear i
Power Plant Components, Subsection NB,1974 edition.
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CALCULATION SHEET PHOJECT CALC.NO CCMANCHE 2-NP GENX 544 PEAK STEAM ELECIBlO STATION UNIT 20935 2_ JOB NO.
Subyd: ..
REV. O PAGE A-1 Reconciliation on Local Stress Eva)uation Using ME215 Ana.Wis ATTACHMENT A (Total No of Pages: 7)
Reconciliation of' Existing ME215 Analyses 5
e 4
's v
Y '
w ' .- e 79;ti ..
i CALCULATION SHEET PROJECT CALC.NO COMANCHE 2-NP.GEHX444 PEAK STEAM _ ELECTRIC STATION UNIT 2
_ JOB NO. 20935
Subject:
_ REV.- O PAGE _ A 2 Reconciliation on Local Stress Evaluation Using ME215 Analysis Figure (1) illustrates the reconciliation method described in GENX 544. Table (1 all of the pipe supports for which an ME215 analysis has been performed to qu integral attachment to the associated piping, identified to ciate. The first que (1), "lWA had pad?" corresponds to the column titled " Pad?" in table 1); the second query of figure (1), "360' Pad and Equivalent Pipe Model 7' correspon(ds to the ne column to right in Table (1) (titled "360 dag. Pad + Eq. Pipe Mod."). The que 10/11 margin' conditional of figure (1) has been subdivided into two columns"in tab 1.
The reconciliation procedure described in GEdX 544 provides that if no pad exist the attachment, the ME215 anatysis is reconciled for finite element mesh size wi further evalubrion (see figure [1]). Therefore, those problems with "N" (i.e., "no column titleo Pad?' in table (1) pass the reconciliation without evaluation of any attributes as listed in the columns to the right. Similary with the other attributes, if t column with the below titles have the classification listed below the re nasses without need to evaluate other attributes: -
Column Title (Table [1]) .
ME215 Reconciled if 7 ' Pad?"
'360 deg. Pad + Eq. Pipe Mod' N
'tyn.10 or 11 Qual by ME215' Y "Eqn.10 oc 11 Margin > 40%?" N
'R s 1.07" Y
' Stress (P!pe) + S < Allow ?" Y Y
indicates the ME215 analysis was reconciled for elem indicates the opposite.
q
COMANCHE PEAX PROJECT - UNIT 2 CALC NO. GENX 544 REV. 0 RECONCILIATION ON LOCAL STRESS EVALUATION USING ME215 ANALYSIS PAGE A 3 Logic For Reconciliation of ME215 Analyses atans riraz o (1)
. s nav N -
,,....e. Y
- m eaav. sto4 emee1**
M Y
men. 10/11 m eia tripel
> 1.4?
Ccampute a L_ - _
d Y N.s..-/ M Compute 8 dtA pipe misirm seminal strees t _ ,e Y
?
. W aseeme4liaetem aseer4111ae1.a l
P&ile Succee.e Applies to pipe aasd pad weld ortly.
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e COWNCe4 PEM PMCWCT - UNr. 3 CALC, 980,3-w-WNI-544 REY. O Rhrvuaru t afM)ed Det LOCAL 875498 EVALLuflosiUsee natig ANALM PAOC A-4 I l
tats t l I
nenneassen at Comanes Pe== istats Anerymme one om Fwee ammenes Mapremanerg Pipe and Anmerwoons taudde !
fWeenos:GENX-6%
l Br RA Winessen, t1/ta,91 l
Susqmwt Seses Seese Pt erf I S80 de$ Eett0 59610 tesee menart '
No.
jed+54 a or 11 or 11 Realc? (Pipel Penet Caso #1 Caen #8 Pte Med Owai by Magm +8e far?
? hittitt me0%f i CT - t-OSS- CT-t *000 AAswt CY-3-030 N -- == -- ==
401-CatA == P W-3 -005 - W-t-010C W Ot38 Y N N -- --
434-4M - a* P M WS - W-3-Ot 0A W =t-OttA Y N Y Y -- --
494-8e4A P N-CC- t -M S-4887A Y N Y Y --
-930-01 9 -- P CC-3-316 3-00 2 Y N N -+ ==
408-CEA == P rw-t-017- 3-007 Noenso -- -- -- -- --
44s-C7sR P CS a t = 8H S- CS = l-NOW CS-t-NOW Y -- -- N ros-esan N P=14 Y P 00- 8 -081 - OO-t- tWA Y N Y M doe-oseA Y P=C AS -- P 00-9 038- CC-8-1 GPS Y N Y N i ace-osa Y P=0Adl == 'P 00- 3 -00a = 00-8-18F0 Y M Y N YP=4Aq 40s-0mA .. P 00-t-008- OO-t-teFE Y N Y N doe-oesA Y Pe0 Aq == P j M - t - 100- W -7 Ot3E W-8-0104 N -- -- -- --
407-00e4 -- P I
CT-3-095- CT-t-ceS CT-t-cenA N -- == == ==
act-CatA -- P RM - t =010- AM-t-0TO N -- -- ==
401-test -- -- P 08-t-0F1- RM-t-OSS Y N Y Y --
404-00st -- P SI-8-0T1= RPf-8*19 Y N Y Y -- --g 406-800C P e
, 00-4-0s7- 00 00 Y. N Y N 700-034 LtN NOOD N @mt4 Y P CT-t-tah CT-t-4BFE 88 -- == == --
408-CFut -- P 44s 9 08 06 f == -~ ==
411-CMR Y -. -- P CT-8-06 % W -t-eBS Cf-04eSA N -. == -- ==
- '-o!!!6_ -- P Cr-t
- Cr-e m Y N
=
-- Y --
dot-CMA -- P C7at=077- Cf-T-es44 Y N 0.-C A Y -- -- P 1 1
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l
CALCULATION SHEET PROJECTW COMANCHE CALC, NO MW444 PEAK STEAM ELECTRIC STATION-UNrr 2
Subject:
__ REV. O PAGE A5 Reconcdotion on Local Stress Evaluation Using ME215 Analysis _
Reply 9/23/91 cales CS-1 N098 and CS-2-N030 weld size:
weld layers:%" 2 > pipe wall use %" weld data of Table 7.2 per Sect. 5 of GENX-544 Moment Imadine (in lb)
M,= 3728 Mar Stress Ratios From Table 7 2 M = 24619 R (MJ = .735 M,y = 24619 R( ) = 1.299 R( = 1.167 R = 1.23 S (force) = 1039 psi (pipe at ends, elem 763)
S (moment) = 11645 psi (pipe near att., elem 609)
S = 1039 + 1.23 (11645) = 15362 psi o pp, = 16531 om=opp, + S = 16531 + 15362 = 31893 psi Allow = 36590 psi OK '
\
I
CALCULAT;ON SHEET
.CALC.NO PROXCT COMANCHE 2-NP.GENX 544 PEAK STEAM ELECTRIC STATION 20935UNIT 2__ JOB
Subject:
n"V._LPAGE _ _ A-6 Reconcilist'Gi on local Stress Evaluation Using ME215 Anaryi.ir, _
Reply 9/24/91 cales DO-167A,B,D,E; supports DO-2-021-402 D53A,-022,053,-056 Moment badina (in lb) Afar Stress Ratios From Table 7.2 M, = 144252 R (M,) = 0.830 M = 17100 M,y = 3588 R( ) = 1.303 R( = 1.212 weld size: %"
weld layers: 1 < pipe wall, use 3/16" weld data per Section 5.0 of GENX-544 R = 0.85 < 1.0 OK 9
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, CALCULATION SHEET 4
PROJECT COMANCHE PEAK STEAM ELECTRIC STATION-UNIT 2 JOB NO. 20935 CALC.NO 2M4ENX-M4 Subje::t: REV , L PAGE A-7 Reconoliation on Local Stress Evaluation Using ME215 Analysis Reply 10/10/91 cales DO 2 L165F, DO 2 N038 CCR 4031 weld size: %" > pipe wall use %" weld data of Table 7.2 for Sect. 5.0 of GENX-544 weld layers: 2 Moment bading Mar. Stress Ratios Flom Table 7.2 M,= 2190 R (MJ = 0.706
= 36700 R( ) = 1.299
= 4960 R( = 1.167 R = 1.295 S (force) = 2287 psi (pipe at ends, elem 515)
S (moment) = 11457 psi (pad weld, elem 1000)
S = 2287 + 1.295 (11457) = 17124 psi o p,p, = 13441 o u = o, + S = 13441 + 17124 = 30565 psi Allow = 37500 psi OK 4
ENCLOSWtE 5-TXX-92353
- The Responses to NRCs Questions-
~
- 1) The input data such as geometric model; mesh and loadings are the same for both ANSYS and ME215, Many of the'ME215 verification problems were selected from configurations l 2) previously analyzed by the ME214 computer program. The table of comparison shown on page 44 of the verification manual is intended only as a demonstration of-the diderences between the results of ME215, which is finite element based, and the more conservative resu5 of ME214. ME214 uses simplified non finite element methodologies based'on ASME code cases, WRC Bulletin No.107 and other conservative empirical methods as contained in CPSES criteria 2EP-5.12 r.d 5.13. H The ME214 methodologies are recognized and intended to be conservative.
ME215 is a finite element analysis computer program and, therefore, provides more realistic results than those from the simplified;nethod of ME214.
- 3) ME215 is a linett finite element analysis. There is no iteration within mathematic solver. ME215 element F.brary contains quadrilateral element of SAP-IV,3D solid-(brick) element of SOUD-SAP and 3D beam element of SAP IV. Since SAP is a well established program and used widely by the industry, convergence of the code relative the elements used has been established.
The ME215 automatically generated element sizes at the critical regions are selected ba ed on the experiences of previous finita element analyses and the industry practice. The selected element size in these regions is approximately' equal -
to the size of the element thickness. :The element size at the critical area of the pipe is equal to the pipe wall thickness. Based on Timonsenko's ' Theory on Plates and Shells", the local effect will decay within.5 of the distance (this is supported by ASME Section III), if the size of finite element is less than % 5, it will pick up more than 90% of local effect. The element size equal to the pipe wall thickness is less than % 5 (as shown in the attachcd tableh Therefore, the size of element used in ME215 is adequate and is sufficient to account.for local effect.
- 4) The limitation of ME215 is the configuration of the four standard types of piping.
attachment. The ME215 can not be executed if the configuration of the welded:
attachment is not one of these four standard types. Limitations such as problem size, degrees of freedom are dependent on the hardware being used to execute the-ualysis. Within the four standard configurations, there are na limitations.
-5) All applicatiens permitted by ME215 have been benchmarked. The validation problems were microfiched and are attached for review.
4 ,
c:\rptS\mc_, ques -
l 52ross Decay Calculation Based on Timoshenko's Textbook " Theory o' Plates And shells" l
l Elem Size x (in) Seta (Beta)*x % of Local Effect
/Ti (Tdl)/
Pipe $CH CD THl(t) T y Siro (in) (in) (in) THX THI THX TH! y
~
7 7 7 7 l
i 2 inch 40 2.375 0.154 0.2068 0.7448 0.1540 0.2068 3.1083 3.1083 0.4787 0.6427 95.1% 91.7%
80 2.375 0.218 0.2424 0.8902 0.21c.0 0.2424 2.5510 2.6510 0.5 779 0.6427 93.1% 91.7%
160 2.375 0.343 0.2052 1.1621 0.3430 0.2952 2.1774 2.1774 0.7469 0.6427 89.2% 91.n 4 inch 40 4.500 0.237 0.3554 0.6669 0.2370 0.3554 1.8085 1.8085 0.4286 0.6427 96.0% v1.7%
80 4.500 0.337 0.4188 0.8047 0.3370 0.4185 1.5347 1.5347 0.5172 0.6427 94.4% 91.7%
120 4.500 0.417 0.4711 0.9276 0.4370 0.4711 1.3642 1.3642 0.5962 0.6427 92.r 91.n 160 4.500 0.531 0.3133 1.0346 0.5310 0.5133 1.2522 1.2522 0.6649 0.6427 91.2% 91.7%
6 inch 40 6.625 0.280 0.4712 0.5942 0.2800 0.4711 1.3638 1.3638 0.3819 0.6427 96.8% 91.7%
80 6.625 0.432 0.5783 0.7470 0.431, 0.5783 1.1114 1.1114 0.4801 0.6427 95.1% s1.7%
120 6.625 0.562 0.6526 0.8611 0.5620 0.6526 0.9848 0.9848 0.5535 0.6427 93.7% 91.7%
160 6.625 0.718 0.7281 0.9861 0.7180 0.7281 0.8827 0.8827 0.6338 0.6427 91.9% 91.7%
0 in:h 40 8.625 0.322 0.5781 0.5570 0.3220 0.5781 1.1118 1.1118 0.3580 0.6427 97.2% 91.7%
80 8.625 0.500 0.7126 0.7016 0.5000 0.7126 0.9019 0.9019 0.4510 0.6427 95.6% 91.7%
120 8 625 0.718 0.8424 0.8523 0.7180 0.8424 0.7629 0.7629 0.5478 0.6427 93.8% 91.7%
160 8.625 0.906 0.9350 0.9690 0.9060 0.9350 0.6874 0.6874 0.6228 0.6427 92.2% 91.7%
10 inch 40 10.750 0.365 0.6883 0.5303 0.365G 0.6883 0.9437 0.9337 0.3408 0.6427 97 '% 91.7%
80 10.750 0.593 0.8677 0.6834 0.5930 0.8677 0.7407 0.7407 0.4392 0.6427 95.8% 91.7%
100 10.750 0.718 0.9489 0.7567 0.7180 0.948? 0.6773 0.6 773 0.4863 0.6427 95.0% 91.7%
120 10.750 0.841 1.0217 0.8251 0.8430 1.0217 0.6290 0.6290 0.5?O3 0.6427 94.1% 91.7%
12 inch 40 12.750 0.406 0.7915 0.5130 0.4060 0.7915 0.8120 0.8120 0.3297 0.6427 97.6% 91.7%
80 12.750 0.667 1.0175 0.6750 0.6870 1.0178 0.6315 0.6315 0.4338 0.6427 95.9% 91.n 100 12.750 0.843 1.1201 0.7526 0.8430 1.1201 0.5738 0.5738 0.4837 0.6427 95.0% 91.7%
120 12.750 1.G00 1.2150 0.8251 1.0000 1.2119 0.5303 0.5303 0.5303 0.6427 94.1% 91.n 14 inch 40 14.000 0.437 0.8607 0.5077 0.4370 0.8607 0.7467 0.7467 0.3263 0.6427 97.6% 91.77.
80 14.000 0.75 0 1.1145 0.6729 0.7508 1.1145 0.5767 0.5767 0.4325 0.6427 96.0% 91.7%
100 14.000 0.937 1.2369 0.7575 0.9370 1.2369 0.5196 0.5196 0.4869 0.6427 95.0% 91.7%
120 14.000 1.093 1.3279 0.8231 1.0930 1.3279 0.4840 0.4840 0.5290 0.6427 94.2% 91.7%
Textbook: " Theory of Plates And Shells" , Second Edition, by Timoshenko and Wolnowsky-Krieger Chapter 15 faose pp.468 470.
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108JJZ It'007 Jo % - (x.utag)tsd l
" 7
STATE OF TEXAS CITY OF HOUSTori COUNTY OF HARRIS David L. Brannen, being first duly sworn, sayst
- 1. I am a Vice President of Bechtel Power Corpora _lon. Bechtel Power Corporation is the owner of information contained in the ME-215 Validation and User and Theory Manuals entf tied " Stress Analysis for Pipe Component and Pipe Support Using Finite Element Method" dated April 1991. Bechtel Power Corporation seeks to have these documents withheld from public disclosure.
- 2. I am making this Affidavit pursuant to the provisions of the Nuclear Regulatory Commission's rules and regulations, including 10 CRP 2.790.
, 3. I have personal knowledge of the criteria and procedures utilized by Bechtel Power Corporation in determining and designating information as a trade secret, or privileged or confidential commercial or financial information.
Under that system, information is customarily designated confidential and held in confider;e if the release of that
, information might result in the loss of an exist)ng or potential competitive advantage. Information which falls into one or more of the following categories is designated confidential:
- a. Information which reveals tPe distinguishing aspects of a process (or component, structure, tool, method, etc.)
where prevention af its use by a competitor without license from Bechtel Power Corporation constitutes a i
competitive economic advantage over other companies,
- b. Information in the form of supporting data, including test data, relative to a procer.s (or component, structure, tool, method, etc. ) , the application of which data secures a competit!va economic advantage, e.g. by optimization or improved marketability.
- c. Information which, if available to a competitor would reduce his expenditure or resources or improve his corpetitive position in the design, manufacture, shipment installation, assurance of quality, or licensing a similar product.
- d. Information concerning cost or price, production capacities, budget levels, or commarcial strategies of Bechtel Power Corporation, its customers, or suppliers.
. <w +
1 O e. Information which reveals aspects of past, present, or future Bechtel Power Corporation or customer funded development plans and programs of potential commercial value to Bechtel Power Corporation.
- f. Information which contains patentable ideas or for which patent protection may be desirable.
- g. Information relating to an invention.
- 4. The User and Theory and Validation manuals entitled " Stress
- Analysis for Pipe Component and Pipe Support using Finite Element Method" are marked " PROPRIETARY" and are transmitted to the Nuclear Regulatory Lommission in confidence.
- 5. The documents contain confidential commercial information
- relating to computer software developed by Bechtel Power Corporation through the expenditure of substantial amounts of effor, and money.
- 6. The manuals have. been held in confidence by 3echtel Power Corporation and have been d.isclosed only after each proposed recipient of the information has exccuted an .appropt iate i agreement, if such agreement-has been deemed necessary.
l 7. The information contained in these manuals is not available in public sources and can not be properly acquired without u licenso from Bechtel Power Corporation, and-the information
- can not be otherwise duplicated by others without a substantial investment of effort and money by them.
- 8. Because of the substantial investment of both ef fort and money by Bechtel Power Corporction in conceiving and developing the computer software described in these manuals, it is Bechtel Power Corporation's expectation that this software- will substantially enhance its competitive position in the nuclear industry, and therefore Bechtal Power Corporation has a
- rational basis for holding this information_.in confidence.
O"vidL.d m Da Era 6ne'n i
4 Subscribed and sworn to before ne this 1 day of July, 1992.
A w)'u
~ ~
Iwkb Notary Public ph>LL8 ****"
- My Commission E '
i 3 .
- e sra g$ e 4
-- m ._.y- , ~ , , , - .+r- - ~ y..y-. 3 - ---yen-- 7 --y - r v e,.y-=..9.gy.A,
OCT ? '92 14: 37 TO NPR:MBF/TB PAGE.006 W
s- .
M Log # TXX-92473 ll=l' ':lllll: Fi1e # 10010 TUELECTR/C octoder 7, 1992 Wi!Uar J.Cahm.Jr.
d7$7$$Il'earRegulatoryCommi5sion Attn: Docun,ent Control Oesk Washington, OC 20555 SUBJEC- COMANCHE PEAK STEAM ELECTRIC STATION (CPSES) - UNIT 2 DOCKET NO. 50-446 REQUEST FOR ADDITIONAL INFORM /. TION ON ME215 SAPCAS COMPUTER CODE Gentlemen:
Per your request for permission to copy Copyright information on the subjGCt computer code, the enclosure is provided for yoc- information.
This enclosure provides BECHTEL*s permission to copy tiic ME 215 User and Thecry Manual and the associated validation manual, provided in the referenced letter. Please note that this permission for copying is for internal use only. Please refer to the enclosure for the specifics on copying, If there are any questions concerning this letter, please call Mr. Carl Corbin at (214) 812-8859.
Sincerely, William J. Cahill, Jr.
By: __
J. S. Marshall Generic Licensing Manager CBC/tg Enclosure c- Mr. J. L. Milhoan, Region IV w/o enci Mr. B. E. Holian, NRR w/encio Resident Inspectors CPSE$ (2) w/o enc 1 m i g i1gg]2/h 40i, oav, snw LB.81 D.nas, Texas 7520t
OC' 7 '92 14: 37 TO NRR2MBF/TB PAGE.007 b
d Bechtel Corrs che Peak Steam Electric Station P.O. Box 1002 Farm Road SG MZ C07 CpSES-9231045 Gicn Rose Texas 76043 WBS-CG88A BEC-CCR-0188TR Subject File 7.21,8.14 September 22, 1992 No Rerponse Required Mr. R.D. Walker Manager of Regulatory Affairs TU Electric Skyway Tower - L.B. 81 400 N. Olive Street Dallas, TX 75201 D l} D F " " ,;,%[ ]
COMS.NCHE PEAA STEAM ELECTRIC STATION MP'4 9 YM CONTRACT FO. C-0001856-7CA -
, BECETEL JOB 20935 II P 4 . NRC REVIEW OF ME _15 DOCUMRUATION NdCLW o a,M
Reference:
- 1. CPSES-9222546 dated July 16, 1992
- 2. CPSES-9227365 dated August 25, 1992
Dear Mr. Walker:
Reference 1 transmitted the documentatior, telated to Bechtel Computer Code ME-215 for submittal to the NRC. Reference 2 authorized the NRC to copy the copyright version of the documentation for their internal use as required during the review process. The purpose of this letter is to further clarify the authorization provided through reference 2.
Bechtel hereby authorizes the NRC to copy pages of the proprietary documents, ME-215 User and Theory Manual, ca well-as the validation manual when such copies are needed to support review and to aid preparation of the SER, copyright notwithstanding. Copies should be kept to a minimum and destroyed after they are no longer needed.-
Copies should be considered and treated the same as originals under proordatary treatment applied for in reference 1. This authorization is granted with the understanding that any collection of ecpied pages made from the documents by the.NRC will bear the prcprietary and copyright notices of the original documentation.
This authorization applies to all ME-215 documentation transmit *ed
, through reference 1, unless terminated by Bechtel with appropriate written notice. Copy authorization for future revisions of these documents will be considered at the time of their submission,
& BechtelEnergyCorporation
1 OCT 7 '92 14: 37 TO I4PR : MUF / T B PAGE.008
, .s CPSES-9231045 BEC-CCR-0188TR September 22, 1993 By providing this authorization to NRC, Bechtel does not waivo any rights it may othervice have to control Bechtel copyright material.
Sincerely,
$ 4?/ x P.G. Castrichini C35 Project Engineer Y/mac cc: R.W. Braddy C32 T.A. Hope Co7 D.M. Rencher C32 M.2. Khlafallah SFRO l . . ,