ML031060647

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Calculation 32-5020244-01, Point Beach 1 CRDM Temperbead Bore Weld Analysis.
ML031060647
Person / Time
Site: Point Beach NextEra Energy icon.png
Issue date: 02/28/2003
From: Krejcirik J
Framatome ANP
To:
Office of Nuclear Reactor Regulation
References
32-5020244-01
Download: ML031060647 (61)
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ACALCULATION FRAMATOME ANP

SUMMARY

SHEET (CSS)

Document Identifier 32 - 5020244 - 01 Title Point Beach I CRDM Temperbead Bore Weld Analysis REVIEWED BY:

PREPARED BY: METHOD: 3 DETAILED CHECK EJ INDEPENDENT CALCULATION NAME JIRI KREJCIRIK NAME JOHN F. SHEPARD SIGNATURE SIGNATURE TITLE ENGINEER DATE 2/28/03 TITLE AD ISORY ENGILEER DATE 2128103 COST CENTER 41020 REF. PAGE(S) 40-41 TM STATEMENT: REVIEWER INDEPENDENCE This document including the information contained herein and any associated drawings, is the property of Framatome ANP, Inc. It contains confidential information and may not be reproduced or copied in whole or in part nor may it be furnished to others without the expressed written permission of Framatome ANP, Inc., nor may any use be made of it that is or may be injurious to Framatome ANP, Inc. This document and any associated drawings and any copies that may have been made must be returned upon request.

PURPOSE AND

SUMMARY

OF RESULTS:

Purpose:

The purpose of Revision I is to provide a Non-Proprietary revision.

The purpose of this calculation is to analyze the Point Beach Unit 1 CRDM nozzle temperbead weld repair design. This repair consists of cutting the CRDM housing above the original attachment weld, removing the lower portion of the housing and welding the remaining housing to the RV head with a temperbead weld.

This calculation will demonstrate that the design meets the applicable requirements of the ASME Code,Section III, 1989 Edition with no Addenda.

==

Conclusion:==

The calculations herein demonstrate that the Point Beach Unit 1 CRDM nozzle temperbead weld repair design meets the stress and fatigue requirements of the Design Code (ASME Code, Section 1II,1989 Edition with no Addenda - Ref. 4)

Based on the loads and cycles specified in Reference 12, the conservative fatigue analysis indicates that the life of the CRDM Nozzle is approximately ( ) years.

THE FOLLOWING COMPUTER CODES HAVE BEEN USED IN THIS DOCUMENT: THE DOCUMENT CONTAINS ASSUMPTIONS THAT MUST BE VERIFIED PRIOR TO USE ON SAFETY-RELATED WORK CODENERSIONIREV CODENERSIONIREV 1 YES  ; NO Page 1 of 61

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER FFz ~ ^rAIITC>M1 F` 32-5020244-01 POINT BEACH 1 4160094 Table of Contents 1.0 Purpose .......................................................... 4 2.0 Background .......................................................... 4 3.0 Finite Element Model .......................................................... 5 4.0 Analtical Mode! .......................................................... 7 4.1 Model Geometry .......................................................... 7 4.2 Model Material .......................................................... 8 4.3 Model Boundary Condition .......................................................... 10 4.4 Overall 3D Finite Element Model .......................................................... 12 5.0 Applicable Loads .......................................................... 15 5.1 Design Conditions .......................................................... 15 5.2 Operating Transient Loads .......................................................... 15 5.3 External Loads .......................................................... 19 6.0 Thermal'Results.......................................................... 20 7.0 Stress Results.......................................................... 27 7.1 ASME Code Criteria .......................................................... 29 7.2 ASME Code Primary Stress (SI) Intensity Criteria ..................................................... 30 7.2.1 Primary Stress Intensities for Design Conditions (Design Pressure @ Design Temperature)............................................................................................... 30 7.2.2 Primary Stress Intensities for Emergency (Level C) Conditions ................... 32 7.2.3 Primary Stress Intensities for Faulted (Level D) Conditions ......................... 32 7.2.4 Primary Stress Intensities for Test Conditions ....................... ...................... 33 7.3 ASME Code Primary+Secondary SI Range and Fatigue Usage Criteria ... 34 8.0 Considerationof Corrosionof RV Head Low-Alloy Material. .......................................... 38 9.0 Conclusions.......................................................... 39 10.0 References.......................................................... 40 11.0 ComputerFiles.......................................................... 42 APPENDIX A ........................................................... 44 Prepared by: J. KREJCIRIK Date: Feb/03 Page: 2of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F= ^ A EZ r14 FM 32-5020244-01 POINT BEACH 1 4160094 RECORD OF REVISIONS REVISION DESCRIPTION DATE 00 ORIGINAL RELEASE 9/02 01 NON-PROPRIETARY REVISION 2/03 Prepared by J. KREJCIRIK Date: Feb/03 Page: 3 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F= E: AN.1F 32-5020244-01 POINT BEACHI 1 4160094 1.0 Purpose The purpose of this calculation is to analyze the Point Beach Unit 1 CRDM nozzle temperbead weld repair design described in Reference 2. This repair consists of cutting the CRDM housing above the original attachment weld, removing the lower portion of the housing and welding the remaining housing to the RV head with a temperbead weld.

As required by Ref. 7, this calculation will demonstrate that the design meets the applicable requirements of the ASME Code,Section III (Ref. 4). Installation of this repair may result in a given closure head assembly having CRDMs with both the repair design and the original design. Therefore, this document (an analysis of the repair design) is considered as a supplemental analysis to the original stress report (an analysis of the original design).

Additional results (stresses) are tabulated for the remnants of the original welds and the repair welds for potential use in flaw evaluations.

2.0 Background

In December 2000, inspection of the Alloy 600 Control Rod Drive Mechanism (CRDM) nozzle penetrations in the RV closure head (RVH) at Oconee Unit 1 identified leakage in the region of the partial penetration attachment weld between the RVH and the CRDM nozzle. This leakage, identified as the result of Primary Water Stress Corrosion Cracking (PWSCC), was repaired using manual grinding and welding. In February 2001, the manual repair of several CRDM nozzles at Oconee Unit 3 with similar defects resulted in extensive radiation dose to the personnel due to the location and access limitations. Consequently, the B&W Owner's Group (BWOG) commissioned Framatome ANP (FRA-ANP) to design and demonstrate an automated repair that was ultimately implemented at Oconee Unit 2 and other plants.

Due to concerns that similar Control Rod Drive Mechanism (CRDM) nozzle degradation may have occurred at Pressurized Water Reactors (PWRs), Nuclear Management Company (NMC) has contracted FRA-ANP to adapt this repair for its Point Beach Unit 1&2 (PB1&2) with modifications as required to meet ASME Code.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 4of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER FZ Ac.AhTO IrA E: ^ " 32-5020244-01 POINT BEACH 1 1 4160094 3.0 Finite Element Model There are a total of 49 CRDM nozzle-to-head connections on the RV Closure Head. Each of the nozzles is aligned vertically. They are located at various radial distances from the vertical centerline of the hemisphere. Based on the distance from the center of the hemispherical head, the relative angle of the nozzle vertical centerline and the plane of the head curvature varies. This angle is referred to herein as the 'hillside angle'. Experience (with analyses for nozzles located at various hillside angles) indicates that the larger the hillside angle, the more severe the effect on stress levels in the connecting weld region.

Based on this experience, the model herein represents the largest hillside angle of any of the CRDM Housing nozzle locations. This model is considered to produce results that are conservatively bounding all nozzle locations that have a smaller hillside angle.

The finite element model is a 3-dimensional model of a 180-degree segment of a CRDM tube with the adjacent head region and interconnecting weld. Symmetry boundary conditions are used to represent the un-modeled portions of the head and nozzle. The model is shown in Figure 1. The dimensions and material properties are documented in Section 4.0.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 5 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY A DOCUMENT NUMBER PLANT CONTRACT NUMBER A M^-C: ME: Ak.N F=I: 32-5020244-01 POINT BEACH 1 1 4160094 1 ANSYS The figure above is not pertinent to this The figure above is not pertinent to this document Figure 1 FiniteElement Mesh (for legibility concerns)

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 6 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F= F;Z ^AI ^-lT AIIF~b 32-5020244-01 POINT BEACH1 4160094 4.0 Analytical Model To provide the needed stress field refinement, the CRDM Housing nozzle-to-RV Head connection is modeled in three dimensions. This permits detailed accounting for the effects of the hillside orientation. The analysis software program ANSYS (Reference 3) is used for solid modeling, meshing, solution and post-processing of the model. This large 'general purpose' program utilizes the 'finite element' technique as its basis.

The model consists of 'geometry', 'materials' and 'boundary conditions'. Each of these items is discussed in more detail in the following sections.

4.1 Model Geometry The geometry of the model is based on References 2 and 15. Due to the spacing of the CRDM Housing nozzles and the attenuation of the stress effects, no appreciable overlap of stress fields occurs between adjacent nozzles. Therefore, only a single CRDM Housing nozzle is modeled.

As mentioned in Section 3.0, the model is based on the nozzle having the largest hillside angle (i.e., outermost nozzle). This produces stress results that are bounding of all other locations of CRDM Housing nozzles.

Some of the key dimensions are:

RV Head inside radius to base metal 66.3125" (Ref. 15a)

RV Head thickness 5.375" (Ref. 2)

RV Head cladding thickness 5/32" (Ref. 15b)

CRDM Housing nozzle OD 4.000" (Ref. 2)

CRDM Housing nozzle ID 2.75" (Ref. 2)

Weld buttering layer thickness 0.25" (Ref. 15b)

CRDM Penetration Bore 4.25" (Ref. 2)

Max. machining diameter (Repair Weld) 2.818" (See Note)

The RV Head is modeled a sufficient distance away (both in the uphill/downhill and circumferential directions) from the local weld region to assure that the stress effects have effectively attenuated. (The adequacy of these distances is verified by review of solution runs for operational transients.)

Note: To account for a possible future implementation of Waterjet Remediation at CRDM temperbead repair weld area, the diameter of 2.964" is assumed and used in this analysis.

Comparing to Max. Grinding/Machining Diameter of 2.818", using the Waterjet Remediation Diameter is conservative.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 7of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY I kDOCUMENT NUMBER PLANT CONTRACT NUMBER F FZ A AT tCIEE ^ " F= 32-5020244-01 POINT BEACH 1 4160094 4.2 Model Material The material designations and their properties for the original design are documented in References 7 and 12. Per Reference 7, the material designation for the repair weld is ERNiCrFe-7, UNS N06052. Based on the Chemical Composition in Test Report (Ref. 17),

the Alloy 690 material is assumed to be representative of the repair weld material properties.

The material designations of the sub-components are:

RV Head = SA-302, Gr. B (Ref. 7)

Original CRDM Housing nozzle = SB-I 67 (Alloy 600) (Ref. 7)

Cladding = Type 304 SS (Use SA 240) (Ref. 12, Par. 4.3.1.2, use SA 240)

J-Groove buttering = Alloy 600 (Ref. 12, Par. 4.1.1.9)

J-Groove filler = Alloy 600 (Ref. 12, Par. 4.1.1.9)

Repair weld = Alloy 690 (Ref. 7 and Ref. 17)

The pertinent properties (thermal & structural) for these materials are listed in the following tables.

The analysis herein uses the thermal properties - mean coefficient of thermal expansion (a),

specific heat (C), thermal conductivity (k) and the mechanical properties - modulus of elasticity (E), Poisson's ratio (p), density (p). Additionally, the structurallstress values of the yield stress (Sy), ultimate strength (Su) and allowable stress (Sm) are included.

The units of the quantity below are:

E = psi (x 106) p = ratio (unitless) p = pounds/ cubic inch a = inch/inchPF (x 106) k = BTU/hr-in- 0F C = BTU/(Ib-°F) [C is a calculated value based on C = k/(p x Thermal Diffusivity) where thermal diffusivity is taken from the same source as 'k']

Sm = ksi Sy = ksi Su =ksi Prepared by: J. KREJCIRIK Date: FebIO3 Page: 8of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temrerbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER Fz A T4E 32-5020244-01 POINT BEACH 1 4160094 Table 4.1 Closure Head Base Material Low-Alloy Steel - SA-302, GR. B (Mn - '1 2Mo)

TEMP E a k C Sm Su 100 29.00 0.29 0.2839 7.06 1.9667 0.1067 26.7 50.0 80.0 200 28.50 0.29 0.2831 7.25 2.0333 0.1141 26.7 47.5 80.0 300 28.00 0.29 0.2823 7.43 2.0583 0.1206 26.7 46.1 80.0 400 27.40 0.29 0.2817 7.58 2.0500 0.1270 26.7 45.1 80.0 500 27.00 0.29 0.2809 7.70 2.0167 0.1322 26.7 44.5 80.0 600 26.40 0.29 0.2802 7.83 1.9583 0.1375 26.7 43.8 80.0 700 25.30 0.29 0.2794 7.94 1.9000 0.1440 26.7 43.1 80.0 Ref. 5 Assumed 8 5 5 Calc. 5 5 5 Table 4.2 Original CRDM Housing Nozzle, J-Groove Weld, Buttering ALLOY 600 (SB-167, UNS N0660 ) I Sy = 35 ksi (Alioy18 Weld82_

TEMP E . a K C Sm Sv Su 100 30.81 0.3 0.3060 6.90 0.7250 0.1068 23.3 35.0 80.0 200 30.20 0.3 0.3053 7.20 0.7583 0.1106 23.3 32.7 80.0 300 29.90 0.3 0.3045 7.40 0.8000 0.1140 23.3 31.0 80.0 400 29.50 0.3 0.3038 7.57 0.8417 0.1166 23.3 29.8 80.0 500 29.00 0.3 0.3030 7.70 0.8833 0.1184 23.3 28.8 80.0 600 28.70 0.3 0.3023 7.82 0.9250 0.1221 23.3 27.9 80.0 700 28.20 0.3 0.3016 7.94 0.9667 0.1244 23.3 27.0 80.0 Ref. 5 8 8 5 5 Calc. 5 5 5 Table 4.3 Cladding (Stainless Steel)

SA 240 Type 304 (18Cr- 8Ni)

TEMP E tj 2 a K C Sm S Su 100 28.14 0.3 0.2862 8.55 0.7250 0.1157 200 27.60 0.3 0.2853 8.79 0.7750 0.1209 300 27.00 0.3 0.2844 9.00 0.8167 0.1246 400 26.50 0.3 0.2836 9.19 0.8667 0.1286 NotusedInanalysis 500 25.80 0.3 0.2827 9.37 0.9083 0.1313 600 25.30 0.3 0.2818 9.53 0.9417 0.1334 700 24.80 0.3 0.2810 9.69 10.9833 0.1358 Ref. 5 8 8 5 1 5 Calc. n.a. n.a. n.a.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 9 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUM.ENT NUMBER l PLANT CONTRACT NUMBER I=FokIAT KIM c9F='

k 32-5020244-01 l POINTBEACH 1 4160094 Table 4.4 CRDM Housing Nozzle, Repair Weld ALLOY 690 (UNS N06690)

TEMP E a K C Sm ly Su 100 30.1 0.29 0.3060 7.76 0.5833 0.1034 23.3 35.0 80.0 200 29.5 0.29 0.3053 7.85 0.6333 0.1075 23.3 31.6 80.0 300 29.1 0.29 0.3045 7.93 0.6833 0.1113 23.3 29.8 80.0 400 28.8 0.29 0.3038 8.02 0.7333 0.1140 23.3 28.7 80.0 500 28.3 0.29 0.3030 8.09 0.7833 0.1173 23.3 27.8 80.0 600 28.1 0.29 0.3023 8.16 0.8333 0.1189 23.3 27.6 80.0 700 27.6 0.29 0.3016 8.25 0.8833 0.1218 23.3 27.6 80.0 Ref. 6 Assumed 6 6 6 Catc. 6 6 6 4.3 Model Boundary Condition The analytical model is a three-dimensional model of a 180-degree section of the cylindrical portion of the CRDM Housing nozzle body. Therefore, the model has a mirror plane of symmetry that contains the vertical centerline of the CRDM Housing nozzle and the center of curvature of the RV Head (i.e., this is a vertical plane). The thermal and structural boundary conditions are reflective in this plane.

As for Structural behavior of the closure head model, the model vertical plane boundaries are allowed to deflect in the direction that is radial and meridional to the head center of curvature.

For thermal transient type loads (heat transfer coefficient and bulk fluid temperature), the appropriate surfaces are loaded. Consistent with Reference 11 (see Design Analysis No. 9, 2

Stress Analysis of Control Rod Mechanism Housing), a film coefficient of ( ) Btu/hr-ft -F is used in this analysis for all wetted surfaces. At the RV Head exterior surface, a relatively small film coefficient (representing heat loss through the insulation) is applied in conjunction with the estimated ambient temperature above the head. The small air gap between the remaining CRDM Housing nozzle OD and penetration bore is modeled as 'coupled temperatures' to best represent the actual condition.

During operation, the inside of the RV Closure Head (and the inside bore of the CRDM Housing nozzle) are filled with Reactor Coolant fluid. The temperature and pressure of this fluid corresponds to those of the Reactor Coolant outlet. The fluid temperatures versus time are applied as loads to the model in conjunction with heat transfer coefficients (HTC). The following figure (Figure 2) depicts typical surfaces of the model that are loaded thermally.

For pressure, those surfaces in contact with primary coolant water (i.e., wetted) are loaded.

These include the RV Head/J-groove weld, repair weld, enlarged bore, and the CRDM Housing nozzle inside diameter. The exteriors of the RV Head (and the air-filled interface Prepared by: J. KREJCIRIK Date: Feb/03 Page: 10 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Tenerbead BorenWeld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER FF 12A m

^IAT 1 E: A^ N F' 32-5020244-01 POINT BEACH 1 4160094 gap between the CRDM Housing nozzle and penetration bore) are not loaded by pressure.

The upper end of the CRDM Housing nozzle cylinder has a pressure applied to represent the hydrostatic end load from the CRDM closure.

HTC Applied to CRDM Housing nozzle outside surface and head exterior surface Ambentar HTC Applied to Cladding skide surfaces and inside bore Reactor Coolant Otle li This figure is not pertinent to this document.

2sx21 2/1z/03

'(for legibility concerns)

Figure 2 Heat Transfer Regions of Thermal Analysis Model Prepared by. J. KREJCIRIK Date: Feb/03 Page: 11 of 61 Reviewed by: J. F. SHEPARD Date: FebIO3

CRDM Temrerbead Bore Weld Analysis NON-PROPRIETARY I DOCUMENT NUMBER PLANT POINT BEACH 1 CONTRACT NUMBER 4160094 Fr-= A M E S  : 32-5020244-01 A portion of the remaining CRDM Housing nozzle is roll-expanded to the wall of the adjacent penetration bore (see Reference 2). This roll-expansion fit limits the relative motions of the CRDM nozzle body and the RV Head as the shrink fit (i.e., interference fit) did for the original fabrication. By limiting the relative motions, the thermal and pressure induced stresses in the interconnecting temperbead weld are limited. The typical shrink fit effect for such a nozzle/head configuration is demonstrated analytically by comparing the results of runs

'LWDesign2.ou' (wI interference restraint) and 'LWDesign3.out (w/o interference restraint) from Ref. 9. [he geometry of the Reference 9 analysis is slightly different than Point Beach

1. But, the subjects general behavior is the same. Thus, the results of Reference 9 are applicable to PointBeach 1]. To assure conservative results, no credit is taken for this effect in this model -the restraint provided by the roll-expansion is omitted.

4.4 Overall 3D Finite Element Model Using the above items as parameters, the CRDM Connection 3D FE model is developed.

The resulting overall model is depicted in Figure 1. The model is comprised of approximately 83,000 nodes and 57,000 elements. The element type chosen is the ANSYS SOLID87 (3D 10-Node Tetrahedral Thermal Solid) for the thermal analysis. This element is converted to element type SOLID92 (3D 10-Node Tetrahedral Structural Solid) for the structural solutions.

These elements have the capability of having surface loads applied (such as heat transfer or pressure) and having structural boundary conditions applied (such as guided displacements, constraints, etc.).

As an example of the behavior of the model, a run has been made for the Design Condition loading of 2500 psia @ isothermal temperature = 650F (wI no differential thermal growth -

Tunif = Tref) [Run ID = 'PB1_DES.out']. Figure 3 contains a deformed shape plot with an outline of the un-deformed shape. Such plots are used to confirm the correct modeling of the structural (displacement) boundary conditions. Figure 4 shows the stress contours associated with the Design Condition parameters. Assessment of this type of plot is used to confirm the general stress response of the model (such as spherical head stresses and nozzle cylinder stresses - remote from discontinuities).

Based on a review of the model behavior, it is concluded that the model is responding correctly. More specifically, the model is suitable for use in analyzing the CRDM Housing nozzle connection to the RV Head when subjected to the pressure and thermal loading associated with operating transients.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 12 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Tem erbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER FZ A .T lCAT EE:

1= . F= 32-5020244-01 POiNT BEACHI 1 4160094 m = m IW 1rTq SEP 6 2002 1

AI'JZSYN 10:45:21 DISPLACEMENT STEP=1 SUB =7 TIME=.1 PowerGraphics EFACET_1 AVRES=Mat DMX =.053403 This figure is not pertinent to this document (for legibility concerns)

Figure3 Deformed Shape with Undeformed edge at Design Pressure Prepared by: J. KREJCIRIK Date: FebIO3 Page: 13 of 61 Reviewed by: J. F. SHEPARD Date: FebIO3

l CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER l PLANT CONTRACT NUMBER F FA, M A.--TO E ArI "F 32-5020244-01 l POINT BEACH 1 I 4160094 6 2002 1

ANSYS SEP 10:46:59 NODAL SOLUTION STEP=1 SUB =7 TIME=.1 SINT (AVG)

PowerGraphics EFACET=1 AVRES=Mat DMX =.053403 SMN =1131 SmX =102550 A =6765 B =18034 C =29303 D =40572 E =51B41 F =63109 G =74378 H =85647 I =96916 This figure is not pertinent to this document.

247 Z/2 I/a; (for legibility concerns)

Figure 4 Stress Intensity Contour at Design Pressure Prepared by: J. KREJCIRIK Date: Feb/03 Page: 14 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

l CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F=FR IU.1AhN M C EE:

F' ^ 32-5020244-01 POINT BEACH 1 4160094 5.0 Applicable Loads The following sections address the types of loading that are applicable (or potentially applicable) to the thermal/stress analysis of the 3D model of the CRDM Housing to RV Head weld connection region.

5.1 Design Conditions The RV Closure Head assembly (includes CRDM Housing nozzles and attachment welds) is designed to meet ASME Code stress criteria for maximum temperature and internal pressure. As a typical example, per Reference 12, the Design Temperature = 650F and the Design Pressure = 2500 psia are used.

As part of the developmental process for the subject FE model of the CRDM Housing nozzle attachment weld region, a run is made for the design conditions. The results of this run are used to assess the overall behavior of the model (i.e., displacements, deformations, stresses, etc.). Run 'PBlDES.out' contains a stress/displacement solution for the design conditions (note - per ASME Code, no thermal growth effects are included).

The Results of this run are used in evaluating the Primary Stresses to ASME Code Criteria.

5.2 Operating Transient Loads The ANSYS model is subjected to the Reactor Coolant outlet thermal and pressure conditions versus time. Per Reference 12, the operating transients and their number of cycles are listed in Table 5.1.

Table 5.1 Transients Transient Abbreviation Cycles HeatuplCoodown HUCD 200 Plant Loading/Unloading PLUL 14500 10% Step Load Increase/Decrease SL10 2000 50% Step Load Decrease SL50 200 Reactor Trip RT 400 Loss of Flow LF 80 Loss of Load LL 80

  • Hydro Test (3125 psia) 5
    • Hydro Test (2500 psia) 5 Note:
  • Hydrostatic test cycles occur only during pre-service and are not permitted once fuel has been loaded in the vessel. Therefore, Hydrostatic test (5 cycles) is not considered in fatigue evaluation.

The number of cycles for Hydro Test is added to HUCD in fatigue evaluation.

The temperature and pressure values for the key points of above transients are taken from Reference 12 and are shown below on time scales that are used for the analysis herein.

Prepared by. J. KREJCIRIK Date: Feb/03 Page: 15 of 61 Reviewed by: J. F.SHEPARD Date: Feb/03

l CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLNT CONTRACT NUMBER F FZ . 32-5020244-01 POINT BEACH 1 4160094

-able 5.2 HUCD Transient HUCD Time Temperature Pressure (hrs) (F) (psia) 0 100 450 2 300 450 4.4 540 2500*

6 540 2500*

6.001 540 2250 8.6 275 450 10.4 100 450 12 100 450 Table 5.3 PLUL Transient Plant Loading/Unloading Time Temperature (CF) Pressure (hrs) (psia) 0 547 2250 0.3333 612 2250 3.0 612 2250 3.3333 547 2250 6 547 2250

  • This pressure includes 'operating pressure + 10% of operating pressure' for Hydro test.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 16 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F=Fa M EA32-5020244-01 POINT BEACH 1 4160094 Table 5.4 SLO0Transient 10% Step Load Increase/Decrease Time Temperature (OF) Pressure (hrs) (psia) 0 590 2250 0.0278 577 2140 0.0625 587 2275 0.0833 592 2260 1.0 590 2250 1.0111 598 2320 1.025 602 2275 1.0694 591 2140 2.0 591 2140 Table 5.5 SL50 Transient 50% Step Load Reduction Time Temperature (OF) Pressure (hrs) (psia) 0 575 2250 0.0333 587 2370 0.05 590 2350 0.1833 555 2150 0.2333 548 2200 Table 5.6 RT Transient Reactor Trip Transient Time Temperature (OF) Pressure (hrs)_(psia) 0 612 2250 0.0083 567 2050 0.0167 550 1925 0.025 547 1950 0.25 547 1950 Prepared by: J. KREJCIRIK Date: Feb/03 Page: 17 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT l CONTRACT NUMBER F 1 IVIATC IE ao.IFa 32-5020244-01 l POINTBEACHI l 4160094 Fable 5.7 LF Transient Loss of Flow Time Temperature ( 0F) Pressure (hrs) (psia) 0 612 2250 0.0033 612 2250 0.0053 520 2250 0.0067 528 2250 0.25 528 2250 Table 5.8 LL Transient Loss of Load Time Temperature (F) Pressure (hrs) (psia) 0 612 2250 0.0028 655 2750 0.0111 605 1850 0.0389 550 1475 0.0444 550 1450 0.25 550 1450 Prepared by: J. KREJCIRIK Date: Feb/03 Page: 18 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F= FR ^ M ^3 I2 Als F e 3-5020244-01 POINT BEACH 1 4160094 5.3 External Loads The CRDM Housing nozzles function as mechanical mounts for the Control Rod Drive Mechanisms. The Control Rod Drive Mechanisms are relatively tall slender structures that may be subjected to loads from seismic or other motions. Any movement of the Control Rod Drive Mechanisms may produce loads in the CRDM Housing nozzles (essentially cantilevered from the RV Head). However, the design of the CRDM Housing nozzle connection to the RV Head includes a roll-expansion fit feature (also, applicable to repair process). This fit is located above the 'CRDM Housing-to-RV Head connection' weld.

Therefore, mechanical loads from the Control Rod Drive Mechanisms are transmitted to the RV Head through the roll-expansion fit region. This design feature effectively shields the

'CRDM Housing-to-RV Head connection' repair weld from being subjected to external mechanical loads. Note that the mechanical loads applied to the original configuration were determined to have a negligible effect on the original welds (See Ref. 11, Report #9, Page A-1). Since the repair weld is also below the roll-expanded region, this conclusion remains valid. Therefore, no external mechanical loads are considered in the analysis of the 'CRDM Housing-to-RV Head connection' repair weld.

As for the closure head boltup load, it is considered to be insignificant with regard to the overall stress levels resulting from other loadings on CRDM nozzle and its repair weld.

Therefore, the effects of Closure Head boltup load are not used in this document.

Prepared by. J. KREJCIRIK Date: Feb/03 Page: 19 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY JNDOCUMENT F 12 A M TO IV1 E AMN. I NUMBER 32-5020244-01 PLT POINT BEACH 1 CONTRACT NUMBER 4160094 6.0 Thermal Results Using thermal transients from Section 5.2, each thermal transient run is made. The results of the heat transfer analysis are contained in the output files:

HUCDPBth.out PLULPBth.out SL1 OPBth.out SL50PBth.out RTPBth.out LFPBth.out LLPBth.out The relevant transient results are summarized in the graphs in Figure 5 and Figure 6. These figures depict the 'temperature versus time' and 'temperature difference versus time'. The text listings of the values for these curves are contained in the following files:

HUCDPBDelta.txt PLULPBDelta.txt SL1 OPBDelta.txt SL50PBDelta.txt RTPBDelta.txt LFPBDelta.txt LLPBDelta.txt The resulting Temperature differences' vs. time history illustrates at which transient time points the maximum thermal gradients (and associated maximum thermal stresses) occur. These time points are then chosen for detailed stress analysis in Section 7.0.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 20of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER FFZkM IVI EE A 0 32-5020244-01 POINT BEACH 1 4160094

,,.4N!

Jgi4_I 6'10

., f*t,

'SCR a) HUCD b) Plant Loading/Unloading a-W P-a-Q a-w cl.d~n I.=

A-Z I'4 _..

clJ.=I Cit.dIL'

  • A. A - U 1' iA,  : ZA

=MA Ii U Z c) 10% Step Load d) 50% Step Load These figures are not pertinent to this document.

.2K , 7/2 f'/l3' (for legibility concerns)

Figure 5 Temp. Plots of Selected Model Locations for Transients Groups Note: Figures indicate that all Nodes start from the same temperature. Temperatures on the inside and outside surface of the RV Head should indicate about 5*F difference. Since this discrepancy happening at the beginning of transients only, the impact on the results is insignificant.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 21 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY F=2AI ^ACTO E: ^IS F=

I DOCUMENT NUMBER 32-5020244-01 PLANT 1 POINT BEACH 1 CONTRACT NUMBER 4160094 Gx L4 W

V4 W*

'W W. P-Z'r gm W"t-i so IZ4=

cl.Ic

I. I

, .2 4A A I e) Reactor Trip f) Loss of Flow g) Loss of Load These figures are not pertinent to this document.

2Y 1 "010 (for legibility concerns)

Figure S- Cont. Temp. Plots of Selected Model Locations for Transients Groups Prepared by: J. KREJCIRIK Date: Feb/03 Page: 22of 61 Reviewed by: J. F. SHEPARD Date: FebIO3

l CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY AkI DOCUMENT NUMBER PLANT CONTRACT NUMBER F A~

IA32-5020244-01 POINT BEACH1 4160094 MW vAW a) HUCD b) Plant Loading/Unloading

.V.SC 9

UI

.1.7

,"kw 4 2oS 0

2t.7

-4.0

_U

-16 a , .1 , IA , !:. - ,, - Z "P. L-,)

c) 10% Step Load d) 50% Step Load These figures are not pertinent to this document.

2"._ z /Ze//O (for legibility concerns)

Figure 6 Delta-T Plots of Selected Model Locations for Transient Groups Note: '2' isa node on cladding, '5' isa node on middle of the closure head, and '7' is a node on outside of the closure head.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 23 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

l CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY 3

DOCUMENTlNUMBER PLANT CONTRACT NUMBER I. FZ^ ^-rv C:T) 4 F=A = 32-5020244-01 1 POINT BEACHI1 4160094 e) Reactor Trip f) Loss of Flow g) Loss of Load These figures are not pertinent to this document.

4:t~i/ //Z /Os (for legibility concerns)

Figure 6- Cont. Delta-T Plots of Selected Model Locations for TransientGroups Prepared by: J. KREJCIRIK Date: Feb/03 Page: 24 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER

- VF1ZrTom I E= A ` 32-5020244-01 POINT BEACH 1 4160094 Based on the delta-T values depicted above (and pressure variations along with steady-state conditions), stress calculations are performed at the following time points in the transients:

Table 6.1 HUCD Time Points Load case Time (Hr) Temp Pressure Description 1 0.001 100 450 Initial condition 2 2.0 300 450 Higher Pres. Starts 3 4.4 540 2500 Max. Delta-T in HU, End of Heatup 4 6.0 540 2500 End of Steady State 5 7.8549 367 1110 2nd Max. Delta-T in CD 6 8.6 275 450 Pres. Drops to 450 7 10.4 100 450 End of Cooldown Table 6.2 Plant Loading/Unloading Time Points Load case TIME(Hr) Temp Pressure Description

__ __ _ _ _ _ _ _ ~ ~ (OF (p sia ) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

1 0.001 547 2250 Initial condition (SS) 2 0.3333 612 2250 End of Plant Loading 3 3.0 612 2250 Steady State 4 3.3333 547 2250 End of Plant Unloading Table 6.3 10% Step Load Increase/Decrease Load case TiME(Hr) Temp (psia) Description 1 0.001 590 2250 Initial condition (SS) 2 0.027778 577 2140 Max. Delta-T 3 0.0625 587 2275 Max. Pressure 4 1.0 590 2250 SS 5 1.025 602 2275 Min Delta-T Prepared by: J. KREJCIRIK Date: Feb/03 Page: 25of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

l l CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER FFZZ A M T O E:~

M Fib.I 32-5020244-01 POINT BEACH1 I 4160094 Table 6.4 50% Step Load Reduction Time Points Load case Time (Hr) Temp (psia) Description 1 0.001 575 2250 Initial condition (SS) 2 0.05 590 2350 Max Press/ Min. Delta-T 3 0.23333 548 2200 Max. Delta-T Table 6.5 Reactor Trip Time Points Load case TiME(Hr) Temp Pressure Description 0.001 (psia) 1 0.001 612 2250 Initial condition (SS) 2 0.016667 550 1925 Min. Press 3 0.025 547 1950 Max. Delta-T Table 6.6 Loss of Flow Time Points Load case TiME(Hr) Temp ssrDescription 1 0.001 612 2250 Initial condition (SS) 2 0.006667 528 2250 End of Temp. change 3 0.04034 528 2250 Max. Delta-T Table 6.7 Loss of Load Time Points Load case TiME(Hr) (OF) lPssrl Description 1 0.001 612 2250 Initial condition (SS) 2 0.002778 655 2750 Max. Press 3 0.04444 550 1450 Max. Delta-T Prepared by: J. KREJCIRIK Date: Feb/03 Page: 26 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

I CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F uvilT014E '"Q 32-5020244-01 POINTBEACH 1 4160094 7.0 Stress Results Stress analysis is performed at each of the previously listed time points. The model is loaded by nodal temperatures (thermal gradients) and internal pressure (see Tables 6.1 through 6.7

-for applicable values). The results of the stress analyses are contained in the output files:

HUCDPBstout, PLULPBst.out, SLIOPBst.out, SL50PBst.out, RTPBst.out, LFPBst.out and LLPBst.out. The ANSYS (Ref. 3) post-processor was used to tabulate the stresses along paths through the weld and head and classify them in accordance with ASME Code criteria.

The loations of the paths are shown in Figure 7 and Figure 8. A review of the stress results dincates that these paths include the highest stressed (limiting) locations for the assembly (nCduding RV head, CRDM nozzle and connecting repair weld).

The figure above Is not pertinent to this document.

24-f~ Y Z /Z '/a.?

Figure 7 Stress Paths Through Weld (for legibility concerns)

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 27 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

l lCRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT F CONTRACT NUMBER V 32-5020244-01 POINT BEACH 1 4160094 4

I The figure above is not pertinent to this document.

__?/ It %

Figure 8 Stress Paths Through Head 2-/ 2e/0O]

2 /2,1'/cy (for legibility concerns)

Prepared by: J. KREJCIRIK Date: Feb/03 Reviewed by: J. F. SHEPARD Page: 28 of 61 Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F ANAIE A 32-5020244-01 POINT BEACH 1 4160094 The results from the stress classification post-processing runs are contained in the files:

HUCDPBrw.out PLULPBrw.out SLI1 OPBrw.out SL50PBrw.out RTPBrw.out LFPBrw.out LLPBrw.out These runs calculate the classified stress components (membrane, bending and peak) for each of the stress paths shown in Figure 7 and Figure 8, at each of the time points analyzed in the stress analysis. Another post-processing program uses the data from those previously mentioned output files to calculate stress intensity ranges for use in fatigue calculations by following the method prescribed by the ASME Code in Paragraph NB-3216.2. The cycles associated with the calculated stresses are defined in Reference 12 (also, see Table 5.1).

The stresses resulting from the thermal/pressure transients represent the dominant contribution to total stresses for the repaired configuration of the RV Head, CRDM Nozzle and connecting repair weld. It is acknowledged that there are mechanical loads applied at the CRDM Nozzle flanged connection (outboard of the RV Head) and potentially some small load from the bolting-up of the RV Head Closure. These are considered to be negligible as addressed in Section 5.3.

7.1 ASME Code Criteria The ASME Code stress analysis involves two basic sets of criteria - 1) assure that failure does not occur due to application of the design loads and 2) assure that failure does not occur due to repetitive loadings.

In general, the Primary Stress Intensity criteria of the ASME Code (Ref. 4) demonstrates that the design is adequate for application of design loads.

Also, the ASME Code criteria for cumulative fatigue usage factor assures that the design is adequate for repetitive loadings.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 29of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F ,A N1FR ICV EM A.NoI

" 32-5020244-01 POINT BEACH 1 4160094 7.2 ASME Code Primary Stress (SI) Intensity Criteria The analysis of primary stress intensities for Design Conditions is made to satisfy the requirements for application of design loads in accordance with Reference 4, par. NB-3221.

Other related criteria include the design limits for minimum required pressure thickness (see NB-3324) and reinforcement area (see NB-3330). The requirement for reinforcement area is effectively addressed by meeting NB-3221.1, NB-3221.2 and NB-3221.3.

7.2.1 Primary Stress Intensities for Design Conditions (Design Pressure @ Design Temperature)

Per Reference 12, Design Pressure = 2500 psia; Design Temperature = 650F Computer run 'PB1_DES.out" contains the stress solution for the design conditions. The post-processing run MPB1 DESrw.out" contains the classification of stresses into categories that are comparable to the categories used in the criteria of the ASME Code as discussed below:

NB-3221.1 - General Primary Membrane Stress Intensity (Pm < 1.0 Sm)

The applicable value occurs remote from discontinuities and includes no local effects. From Figure 8, Path 5 depicts an appropriate location for the RV Head. From "PB1DESrw.out", the membrane stress intensity of Path 5 is ( ) ksi. For the RV Head material, Sm = 26.7 ksi (Table 4.1). Therefore, the requirement is met for the RV Head.

For the CRDM Nozzle (the portion affected by the repair), the membrane stress intensity is maximum at the thinned section (maximum machining diameter; see Section 4.1). This value is calculated as Pm = ((Pr/t) + (P/2)) = ( ) + ( ) = ( ) ksi (Ref. 4, NB-3324.1). This is less than 1.0 Sm for SB-167 (Alloy 600) = 23.3 ksi (Table 4.2). Therefore, the requirement is met for the CRDM Nozzle wall (as well as the corresponding section of the A690 weld).

NB-3221.2 - Local Membrane Stress Intensity (Pi < 1.5 Sm)

A conservative local membrane stress can be obtained by using the approach from Reference 13 (pg. 208). Considering a ligament between two adjacent penetrations, two stress concentration profiles from each penetration are accounted on the ligament and they are superimposed to simulate local effect from both penetrations. The average stress from the ligament is conservatively regarded as a local membrane stress. With approx. 11" of pitch length (between two penetrations' centerlines; see Ref. 15a) and Pm = ( ) ksi, the local membrane stress is approximately ( ) ksi. For the RV Head material, 1.5Sm = 40.1 ksi.

Therefore, the requirement is conservatively met for the RV Head.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 30Oof 61 Reviewed by: J. F.SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER I PLAT CONTRACT NUMBER FFC 1E ^ " F E32-5020244-01 l POINTBEACH1 1 4160094 For the CRDM Nozzle wall section, the membrane Si values at the lower end (at the elevation of the crevice bottom) are classified as 'secondary' per NB-3337.3(b) of Reference

4. This 'secondary stress' classification is dependent on the weld dimensions fulfilling the requirements of Figure NB-4244(d)-1 and par. NB-3352.4(d). Figure 9 herein depicts the designers concept of the repair weld enveloping the Code required weld. It is concluded, then, that the repair weld is larger (and stronger) than the minimum size required by the Code. Thus, there are no loads that generate Primary Local Membrane SI in the CRDM Nozzle wall. Therefore, for the CRDM Nozzle wall - PI includes the Pm contribution; therefore, PI = () ksi < 1.5 Sm = 35.0 ksi for SB-1 67 & A690 and the requirement is met.

TREAT AS NOZZLE BASE MATERIAL

.469 (3/4 tn)

TREAT AS PARTIAL PENETRATION WELD

.938 TREAT AS FILLET WELD (1 1/2 tn)

NB-4244(d)-1 (c)

Figure 9 Design Concept of the Repair Weld NB-3221.3 - Primary Membrane + Primary Bending SI (PI+Pb < 1.5 Sm)

For the head, the primary bending stress intensity (Pb) is () ksi from PB1DESrw.out.

Thus, the Primary Membrane + Primary Bending Si for the RV head material = ( ) + () = ()

ksi. For the RV Head material, 1.5Sm = 40.1 ksi. Therefore, the requirement is met for the RV Head.

Per Ref. 4, Table NB-3217-1, since lateral external loads on the CRDM do not result in a bending stress at the lower part of the nozzle, there is no Primary Bending at that location.

Therefore, PI+Pb = PI = () ksi (same as Pm) c 1.5 Sm = 35.0 ksi for SB-167 & A690 and the requirement is met.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 31 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F=NiAL M 1 E Als! F 32-5020244-01 POINT BEACH 1 4160094 777.2 Primary Stress Intensities for Emergency (Level C) Conditions There is no Emergency condition specified in Reference 12.

723 Primary Stress Intensities for Faulted (Level D) Conditions Reference 14 specifies two 'faulted' category transients - Reactor Coolant Pipe Break and Steam Line Break. It is suggested that the maximum Faulted Condition transient pressure (2500 psia) be used. Therefore, the Primary Stresses for these Faulted Condition transients are well represented by those previously determined for the Design Conditions. The summary below lists the Primary Stresses compared to Level D (Faulted Condition) allowables.

RV Head (max. values considerinc all regions of low-alloy material):

Max. Primary General Membrane SI = () ksi < 0.7 Su = 56.0 ksi (SA302, Gr. B @650F)

[Ref 4, Par. NB-3225, F-1331.1(a)] (computer run - 'PB1DESrw.out, Path 5)

Max. Primary Local Membrane SI = () ksi < 1.05 Su = 84.0 ksi (SA302, Gr. B @650F) fRef. 4, Par. NB-3225, F-1331.1(b)] (computer run - 'PB1DESrw.out, Path 5)

Max. Primary Membrane + Primary Bending SI = () ksi < 1.05 Su = 84.0 ksi (SA302, Gr. B @650F) fRef. 4, Par.NB-3225, F-1331.1(c)J] (computer run - 'PB1DESrw.out, Path 5)

CRDMH Nozzle/Weld (max. values considering all regions of high-alloy material):

Max. Primary General Membrane SI = () ksi < 2.4 Sm = 55.9 ksi (A600/A690 @650F)

[Ref. 4, Par. NB-3225, F-1331.1(a)J (hand-calculated)

Max. Primary Local Membrane SI = ()ksi < 3.6 Sm = 83.8 ksi (A600/A690 @650F)

[Ref. 4, Par. NB-3225, F-1331.1(b)] (no local membrane effects; only general membrane)

Max. Primary Membrane + Primary Bending SI ()ksi < 3.6 Sm = 83.8 ksi (A600/A690 @650F)

IRef. 4, Par. NB-3225, F-1331.1(c)] (The repaired configuration generates no 'Primary Bending' stresses in the CRDMH Nozzle or Weld)

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 32of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENTNUMBER PLANT CONTRACT NUMBER AU I ATOIV' E: 32-5020244-01 POINT BEACHI 1 4160094 7.2A Primary Stress intensities for Test Conditions Reference 14 specifies only one 'test' condition that is significant to the stress levels in the Closure Head (includes CRDMH Nozzle repair region) - Hydrostatic test @ 3125 psia. This transient results in a pressure of 3125 psia. Thus, the pressure induced Primary Stresses due to these transients are greater than those calculated for the Design Condition. To quantify the Primary Stresses due to the Hydrotest Condition, the stresses of the Design Conditions are multiplied by the ratio of the respective pressure values (3125/2500 = 1.25).

To account for the differences in temperatures, the stresses are again multiplied by the maximun 'ratio of moduli of elasticity at hydrotest temperature (70F) to those at Design temperature (650F)' for the materials involved (1.12). Therefore, the Primary Stresses for the Testing Condition transient summarized below and compared to Testing Condition allowables.

RV Head (max. values considering all regions of low-alloy material):

Max. Primary General Membrane SI = ()ksi < 0.9 Sy = 45.0 ksi (SA302, Gr. B @100F)

[Ref. 4, Par. NB-3226(a)] (computer run - PB1 DESrw.out, Path 5 xl.25x1 .12)

Max. Primary Membrane + Primary Bending SI = () ksi < 1.35 Sy = 67.5 ksi (SA302, Gr. B @100F)

[Ref. 4, Par. NB-3226(b)] (computer run - PB1 DESrw.out, Path 5 x1.25x1 .12)

CRDMH Nozzle/Weld (max. values considering all regions of high-alloy material):

Max. Primary General Membrane SI = () ksi < 0.9 Sy = 31.5 ksi (A600/A690 @100F)

[Ref. 4, Par-NB-3226(a)J (Hand-calculated x 1.25 x 1.12)

Max. Primary Membrane + Primary Bending SI = () ksi <1.35Sy = 47.3 ksi (A600/A690 @100F)

(Ref. 4, Par. NB-3226(b)J (The repaired configuration generates no 'Primary Local' or

'Primary Bending' stresses in the CRDMH Nozzle or Weld; therefore, same as 'Pm')

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 33 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER FAA F 32-5020244-0 1 POINT BEACHI 1 4160094 7.3 ASME Code Primary+Secondary Si Range and Fatigue Usage Criteria As stated previously, the analysis of stresses for transient conditions is required to satisfy the requirements for repetitive (or cyclic) loadings. The following discussion describes the fatigue analysis process employed herein for the repair design.

As described in Section 7.0, the stresses for each transient time point chosen for stress analysis are determined in the ANSYS solution runs:

HUCDPBst.out PLULPBst.out SLI OPBst.out SL50PBst.out RTPBst.out LFPBst.out LLPBst.out Overall stress levels are reviewed and assessed to determine which model locations require detailed stress/fatigue analysis. The objective is to assure that 1) the most severely stressed locations are evaluated and 2) that the repair region is quantitatively qualified.

Once the specific locations for detailed stress evaluation are established, the ANSYS 'paths' (sometimes called 'stress classification lines', SCL) are defined. Post-processing runs for these paths are made to convert the raw component stresses along these paths into Stress Intensity (SI) categories that correlate to the criteria of the ASME Code (i.e., 'membrane',

'linearized membrane+bending' & 'total').

The transient analysis of the repair configuration indicates that the location of prime importance is at both the top and bottom crevices between the nozzle OD and the penetration bore diameter. These locations include the maximum peak stresses (due to the applicable SCF of 4.0) and include the low-alloy RV Head base metal (has lower fatigue properties compared to the high-alloy material). To assure that the maximum stress values are obtained, paths are taken through the weld in a radial direction (relative to the nozzle) and through the weld in a vertical direction along the 'weld-to-RV Head' interface. These sectional locations are analyzed at the 'downhill' and 'uphill' side of the model (see Figure 7).

Review of the stress results and experience with analyses of similar hillside configurations indicates that these sections (4 total) include the location of maximum stress/usage. The stress linearization for these paths (1 - 4) are contained in computer files:

HUCDPBrw.out PLULPBrw.out SLI OPBrw.out Prepared by: J. KREJCIRIK Date: Feb/03 Page: 34of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F= FIVXAT0 ~1 E F e 3-5020244-01 32s 1 POINT BEACH 1 4160094 SL50PBrw.out RTPBrw.out LFPBrw.out LLPBrw.out However, because this is a 3-D analysis and the directions of the principal stresses may vary during the transient, the 'range' of 'linearized membrane+bending' is determined by the method prescribed by Paragraph NB-3216.2 of the ASME Code (Ref. 4). The computer run containing the results of the application of this method is:

ALLPBrw.ClassLineSummary The maximum Si range values (of linearized 'Membrane + Bending') as determined in this run are compared directly to the Primary + Secondary Stress Intensity Range criteria of the ASME Code.

As documented in Reference 12, the transients that have a potential impact on fatigue usage and their cycles (based on a 40-year plant life) are:

HUCD = 205 cycles (see note)

Plant Loading/Unloading = 14500 cycles 10% Step Load Increase/Decrease = 2000 cycles 50% Step Load Decrease = 200 cycles Reactor Trip = 400 cycles Loss of Flow = 80 cycles Loss of Load = 80 cycles NOTE: 5 cycles of Hydrotest @2500psia are added to HUCD.

For consideration of fatigue usage, the 'Peak Stress Intensity Ranges' are calculated. These values must include the 'total' localized stresses. As mentioned above, the geometry of the repair design results in a crevice-like configuration a) between the nozzle OD and the penetration bore diameter and b) between the repair weld and the original weld as-modeled at the uphill side. Therefore, the 'linearized membrane+bending' stress intensity range at these locations (Paths 1-2, outside and Paths 3-4, inside and outside) is multiplied by a factor of 4.0 (Ref. 4, Par. NB-3352.4(d)(5)) to represent the 'Peak Stress Intensity Range'.

[Note: The resulting values are confirmed to be greater than the 'total' stress intensities calculated directly from the model.]

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 35of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY F= F A A1T KIVIE .A4rI FZ DOCUMENT NUMBER 32-5020244-01 T PLANT POINT BEACHI 1 CONTRACT NUMBER 4160094 For conservative approach, RV Head Base metal is analyzed for cumulative Fatigue Usage Factor calculation because of its lower fatigue properties as compared to high alloy material.

Upon reviewing the stress range results from 'ALLPBrw.ClassLineSummary', it is determined that Path 4 - Outside (i.e., top of crevice between overlap of repair weld and original weld at uphill side) represents the limiting location for fatigue. Therefore, Path 4 -

Outside node case (corresponds to bottom of the repair weld in Figure 7) is shown in this document Maximum Primary + Secondary Si Range for Low-alloy Material Max. P+S SI Range = () ksi (from Path2 inside, between HUCD and LL)

This is less than the maximum allowed by the design code, (3 Sm = 80.1 ksi)

[Ref. 4, Par. NB-3222.4]

Using the ranges/cycles described above, the corresponding cumulative usage is calculated on the following pages.

For demonstration purposes, the design cycles associated (by linear prorate) with 15 years are used in the following calculations.

Because design cycle usage is taken to vary linearly with time, the maximum number of projected years of life for the repair configuration is also provided.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 36of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F= A b^ATO MA E: A. " r 32-5020244-01 POINT BEACH 1 4160094 l Point Beach I CRDM Temperbead Weld Analysis (Path4-outside EVALUAT N TITLE: l crevice at uphill side 'repair weld-to-original weld' overlap)

REFERNCE. ALLPBrw.ClassLineSummary MATERIAL. SA 302. Gr. B (both high and low-alloy steels are present at this crevice region)

TYPE Low-alloy steel UTS (psO 80000 E mal PS= 2.59E+07 (at T 650F) E ratio = ('E curve'/ 'E analysis 9 (Eratio) ALLOWABLE USAGE RANGE TRANSIENTS WITH REQ'D PEAK SI x CYCLES FACTOR NUWBER RANGE EXTREMES CYCLES RANGE E mat S alt S alt "N "LUI 15 years RVHead I LF - ZSS 30 (f) 2.59E+07 ) ( ()

RVHead 2 LL -ZSS 30 () 2.59E+07 () ) () ()

RV Head 3 PLUL-ZSS 17 () 2.59E+07 () () () ()

RVHead 4 HUCD-PLUL 77 ( 2.59E+07 _ () fJ RVHead 5 PLUL - PLUL 5344 () 2.59E+07 () ( ( (J RVHead 6 PLUL - RT 94 (J 2.59E+07 () ( ()

RVHead 7 SL50-LL 30 () 2.59E+07 () () () ()

Total Low-Alloy Usage __()

Nlote: The 'Peak Si Range' = 'ineauzed Membrane + Bending'x Fatigue Strength Reductfon Factor (FSRF)

For Rage 1, 'Lineanzed Memb + Bending' Sl Range = ( ks,; FSR= 40 For Range 2,'Uneanzed Memb + Bending' Sl Range = ( kst; FSR= 4.0 For Range 3, 'Lineanzed Memb + Bending' SI Range =() ksi; FSR= 4.0 ForRange 4, Jneanzed Memb + Bending' SI Range = () ksi, FSR= 40 For Range 5, 'neanzed Memb +Bending' Sl Range = . ksi; FSR= 4.0 For Range 6, 'Uinearzed Memb + Bending' Sl Range =() kst; FSR= 4.0 For R&ge 7, 'Lineanzed Memb +Bending' SI Range =() ksi; FSR= 4.0 Prepared by: J. KREJCIRIK Date: Feb/03 Page: 37of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY l DOCUMENT NUMBER PLANT CONTRACT NUMBER F=RA 0fTCIK E: of F=' l 32-5020244-01 POINT BEACH 1 4160094 8.0 Considerationof Corrosionof RV Head Low-Alloy Material The design configuration of the CRDM Nozzle Temperbead repair results in an area of RV Head base material (low alloy; SA302 Gr. B) being exposed to continuous contact with Reactor Coolant water. The chemistry of the Reactor Coolant combined with the properties of the RV Head material result in corrosion of the wetted surface.

The amount of corrosion rate has been determined to be ( ) inch per year (Reference 1). At this rate, the total surface corrosion for a repair life of ( ) years of plant life (see Section 7.0 and Section 9.0) is ( ) inch. This small amount of corrosion volume loss will not affect the thermallstructural integrity of RV Head Base metal.

In conclusion, the corrosion of the exposed low-alloy material has a negligible impact on the thermal/structural response of the CRDMH Nozzle assembly with temperbead repair and is, therefore, acceptable.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 38of 61 ReViewed by: J. F. SHEPARD Date: Feb/03

CRDM Tem erbead Bore Weld Anal sis NON-PROPRIETARY F DOCUMENT NUMBER PLANT CONTRACT NUMBER F= FA. o&,r<D M E: ^ 32-5020244-01 POINT BEACH I1 4160094 9.0 Conclusions The preceding calculations demonstrate that the PB1 CRDM Nozzle temperbead repair design meets the stress and fatigue requirements of the Design Code (Reference 4, ASME Boiler and Pressure Vessel Code,Section III, 1989 Edition with no Addenda.) and Reference 7.

Based on the general specification of the Point Beach Unit 1&2 loads and cycles (Reference 12), and CRDM Nozzle ID Temper Bed Weld Repair Requirements (Reference 7), the fatigue analysis evaluation indicates that the usage factor for 15 years of operation is ( ).

Furthermore, by allowing the cumulative fatigue usage factor to the maximum ASME Code allowable of 1.0, the life of the repair is approximately () years.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 39 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY At IDOCUMENT NUMBER PLANT NUMBER I 32-5020244-01 POINT BEACH 1 4160094 10.0 References

1. FRA-ANP Document 51-5019941-00, "Corrosion Evaluation of Point Beach-1 CRDM IDTB Weld Repair"
2. FRA-ANP Dwg. 02-5019702E-02, UPBI1 - CRDM Nozzle ID Temperbead Weld Repair"
3. "ANSYS" Finite Element Computer Code, Version 5.7, ANSYS, Inc., Canonsburg, Pa.
4. ASME Boiler and Pressure Vessel Code,Section III, 1989 Edition with no Addenda.
5. ASME Boiler and Pressure Vessel Code,Section II, Part D, 1989 Edition with no Addenda.
6. FRA-ANP Doc. 51-1176533-00, uAlloy 690 Material Properties"
7. FRA-ANP Doc. 51-5017195-05, 'POINT BEACH 1 & 2 CRDM NOZZLE ID TEMPER BEAD WELD REPAIR REQUIREMENTS"
8. FRA-ANP Document NPGD-TM-500 rev D, "NPGMAT", NPGD Material Properties Program, User's Manual, dated March 1985
9. FRA-ANP Document 32-5012424-01, "CRDM Temperbead Bore Weld Analysis"
10.
  • Point Beach Document, "Point Beach RSG Program - Reactor Vessel Evaluation, REE-95-0064". 8/95.
11. FRA-ANP Document "Design Report for Westinghouse", BW Contract No. 610-0115-51152 [FRA-ANP Microfilm Roll No. 80-80].
12.
  • Point Beach Document, "Equipment Specification #676243", Rev. 0, 515/66.
13. 'Pressure Vessel Design: Nuclear and Chemical Applications", John F. Harvey, D. Van Nostrand Company, Inc., Princeton, NJ.
14.
  • Point Beach Document, "Point Beach RSG Program - Transient Review, REE 0027",3/95.
15.
  • Point Beach Drawings
a. FRA-ANP DWG. 02-117847E, Rev. 5, "Closure Head Assembly"
b. FRA-ANP DWG. 02-117848E, Rev. 2, "Closure Head Sub-Assembly".
16.
  • Point Beach Document, "Point Beach RSG RV/RI Interface Loads Evaluation, REE 0033-,4/95.

Prepared by J. KREJCIRIK Date: Feb/03 Page: 40Oof 61 Reviewed by: J. F. SHEPARD Date: Feb/03

l CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER l PLANT CONTRACT NUMBER FFZA.V IAT :~ M AIcIF` 32-5020244-01 l POINTBEACH 1I 4160094

17. FRA-ANP Document 23-5017869-00, 'Welding Consumables Material For NMC, LLC Point Beach Unit 2, 04/02
  • This document is not available for retrieval from Framatome-ANP Document Control System. This document is available from the Point Beach Document Control System.

Therefore, this is an acceptable reference for use on this contract per Framatome-ANP Procedure FRA-ANP 0402-01, Rev. 32 Appendix 2.

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 41 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F= FR^ M E: AM IF Iek F 32-5020244-01 POINT BEACH 1 4160094 11.0 Computer Files The finite element analyses done in this calculation were made using the ANSYS computer program (Ref. 3). Test cases verifying the suitability and accuracy of this program for this analysis were analyzed and the results of that analysis are included in files VM96.OUT and VM1 87.OUT.

Computer Output Files (See page 61)

File Name Desciriplion HUCDPBth.out HUCD thermal transient heat transfer analysis PLULPBth.out PLUL thermal transient heat transfer analysis SLIOPBth.out SL10 thermal transient heat transfer analysis SL5OPBth.out SL50 thermal transient heat transfer analysis RTPBth.out RT thermal transient heat transfer analysis LFPBth.out LF thermal transient heat transfer analysis LLPBth.out LL thermal transient heat transfer analysis HUCDPBst.out HUCD stress analysis PLULPBst.out PLUL stress analysis SLIOPBst.out SL10 stress analysis SL5OPBst.out SL50 stress analysis RTPBst.out RT stress analysis LFPBst.out LF stress analysis LLPBstout LL stress analysis HUCDPBdt.out HUCD thermal post-processing PLULPBdt.out PLUL thermal post-processing SLIOPBdt.out SL10 thermal post-processing SL50PBdt.out SL50 thermal post-processing RTPBdt.out RT thermal post-processing LFPBdt.out LF thermal post-processing LLPBdtout LL thermal post-processing Prepared by: J. KREJCIRIK Date: Feb/03 Page: 42 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY ANC DOCUMENTNUMBER PLANT CONTRACT NUMBER F= FZ .4MENT: 32-5020244-01 MBER POINT BEACHN 4160094 HUCDPBDelta.txt HUCD thermal Delta T post-processing listing PLULPBDelta.txt PLUL thermal Delta T post-processing listing SL1 OPBDelta.txt SL10 thermal Delta T post-processing listing SL50PBDelta.txt SL5O thermal Delta T post-processing listing RTPBDelta.txt RT thermal Delta T post-processing listing LFPBDelta.txt LF thermal Delta T post-processing listing LLPBDelta.txt LL thermal Delta T post-processing listing HUCDPBrw.out HUCD rep. weld stress post-processing PLULPBrw.out PLUL rep. weld stress post-processing SLIOPBrw.out SL10 rep. weld stress post-processing SL50PBrw.out SL50 rep. weld stress post-processing RTPBrw.out RT rep. weld stress post-processing LFPBrw.out LF rep. weld stress post-processing LLPBrw.out LL rep. weld stress post-processing ALLPBrw.ClassLineSummary Rep. weld Si range tabulation PB1_DES.out Design Pressure at Design temp analysis PBl DESrw.out Design Press stress classification VM96.out Verification case for heat transfer analysis VM1 87.out Verification case for stress analysis Prepared by: J. KREJCIRIK Date: Feb/03 Page: 43of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Tem erbead Bore Weld Anal sis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F FI A lvtlAT.mcI1 FE: A~ b P 32-5020244-01 POINT BEACH 1 4160094 APPENDIX A Stresses used for Flaw Assessments Prepared by: J. KREJCIRIK Date: Feb/03 Page: 44 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F FZ ATOf 1= NII F 32-5020244-01 POINT BEACH 1 4160094 Purpose The purpose of this appendix is to provide supplemental stress results of the transient analysis for flaw assessments. Two areas are selected for this study: original J-groove weld and new temperbead weld (See Figure 7). The original J-groove locations include paths through the remnant portion of the original J-groove welds and adjacent RV head base metal in planes at 0 degree and 180 degree around the CRDM opening bore (See Figure A-1). The stresses tabulated herein are to be used as input to flaw growth assessments.

Figure A-1 Close-up of Paths Through Original Welds/Head This figure is not pertinent to this document.

(for l /cn /0c (for legibility concerns)

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 45of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temrerbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F= F1 A M1 AT= II FE A " FI 32-5020244-01 POINT BEACH 1 4160094 For the J-groove weld, there are two line segments in each path: 1) from upper corner of chamfer to buttering weld (WI) and 2) from buttering weld to the middle of head thickness (W2). Each of these segments has five tabulation points equally spaced along its length.

The stress results are in cylindrical coordinate system.

SX = radial to CRDM Nozzle; SY = hoop; SZ = axial Prepared by: J. KREJCIRIK Date: Feb/03 Page: 46 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM TeMperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER FPA MIVI tr l EE: A. N P 32-5020244-01 POINT BEACH 1 4160094 Path Summary from filet C:\PointBeach\PBl\CRDM\Stress\Stress Outputs\Fracture Outputs\HUCDPBWl.out Path Summary from file: C:\PointBeach\PBI\CRDM\Stress\Stress Outputs\Fracture Outputs\HUCDPBW2.out Prepared by: J. KREJCIRIK Date: Feb/03 Page: 47of 61 Reviewed by: J. F.SHEPARD Date: Feb/03

CRDM Ternperbeed Bor Weld Anal S NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F FZ A NAI TC) AI E: A^ 1" FI3 32-5020244-01 POINT BEACH 1 4160094 Path Summary from file: C:\PointBeach\PBI\CRDM\Stress\Streas Outputs\Fracture Outputs\PLULPBWlout Path Summary from file: C:\Point~each\PBI\CRDM\Stress\Stress Outputs\Fracture Outputs\PLULPBW2.out Prepared by: J. KREJCIRIK Date: Feb/03 Page: 48of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Tem erbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F=FZC A' l 32-5020244-01 POINT BEACH 1 4160094 Path Summary from file, C:\PoLntBeach\PB1\CRDM\Stress\Stress Outputs\Fracture Outputs\SLlOPBWl.out Path Summary from file; C:\PointBeach\PB1\CRDM\Stress\Stress Outputs\Fracture Outputs\SLlOPBW2.out Prepared by: J. KREJCIRIK Date: Feb/03 Page: 49of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CoNTRACT NUMBER F 32-5020244-01 1 POINT BEACH I I 4160094 Path Summary from file: C:\PointBeach\PBl\CRDM\Stress\Stress Outputs\Fracture Outputa\SL50PBWl.out Path Summary from file: C:\PointBeach\PBl\CRDM\Stress\Stress Outputs\Fracture Outputs\SL5OPBW2.out Prepared by: J. KREJCIRIK Date: Feb/03 Page: 50 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F:AI^MATO CN1 E Als1 F 32-5020244-01 POINT BEACH 1 4160094 Outputs\RTPBWl.out Path Summary from filet C:\PointBeach\PBI\CRDH\Stress\Stress Outputs\Fracture Path Summary from file: C:\PointBeach\PBl\CRDM\Stress\Stress Outputs\Fracture Outputs\RTPBW2.out Prepared by: J. KREJCIRIK Date: Feb/03 Page: 51 of 61 Reviewed by: J. F.SHEPARD Date: Feb/03

CROM Ternperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F M M A A M ISTOA 1F- 32-5020244-01 POINT BEACH 1 4160094 Path Summary from file: C:\PointBeach\PBl\CRDH\Stress\Stress Outputs\Fracture Outputs\LFPBWl.out Path Summary from file: C:\PointBeach\PBl\CRDM\Stress\Stress Outputs\Fracture Outputs\LFPBW2.out Prepared by: J. KREJCIRIK Date: Feb/03 Page: 52 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F F A IVI AT-r1CE: Ar4F= 32-5020244-01 POINT BEACH 1 4160094 Path Summary from filet C:\PointBeach\PBl\CRDM\Stress\Stress Outputs\Fracture Outputs\LLPBW1.out Path Summary from file: C:\Point~each\PBl\CRDM\Stress\Stress Outputs\Fracture Outputs\LLPBW2.out Prepared by: J. KREJCIRIK Date: Feb/03 Page: 53 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

Path Summary from file: C:\PointBeach\PBl\CRDM\Stress\StreCs Outputs\FraCtUre Outputs\HUCDPBfr.out Prepared by: J. KREJCIRIK Date: FebIO3 Page: 54of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

l CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F IVIA.NIV AIT)NFw~32-5020244-01 POINT BEACH 1 l 4160094 Path Summary from filei C:\PointBeach\PB1\CRDM\Stress\Stress Outputs\Fracture outputs\PLULPBfr.out Prepared by: J. KREJCIRIK Date: Feb/03 Page: 55of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

Path Summary from file: C:\PointBeach\Pal\CRDM\Stress\Stress Outputs\Fracture Outputs\SLlOPBfr.out Prepared by: J. KREJCIRIK Date: Feb/03 Page: 56of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

_ CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F1A IV IA ANEI Tlvi 32-5020244-01 l POINT BEACH 1 4160094 Path Summary from file: C:\PointBeach\PB1\CRDM\Stress\Stress Outputs\Fracture Outputs\SL5OPBfr.out k

Prepared by: J. KREJCIRIK Date: Feb/03 Page: 57of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY l DOCUMENT NUMBER PLANT CONTRACT NUMBER FR A IVC AE: A32"Fe 3-5020244-01 POINT BEACH 1 4160094 Path Summary from file: C:\Point~each\PBl\CRDM\Stress\Stress Outputs\Fracture Outputs\RTPBfr.out Prepared by: J. KREJCIRIK Date: Feb/03 Page: 58 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

Outputs\Fracture Outputs\LFPBfr.out Path Summary from files C:\PointBeach\PB1\CRDM\StreSs\Stress Date: Feb/03 Page: 59 of 61 Prepared by: J. KREJCIRIK Reviewed by: J. F. SHEPARD Date: Feb/03

Outputs\LLPBfr.out Path Summary from files C:\PointBeach\PBl\CRDM\Stress\Stress Outputs\Fracture Prepared by: J. KREJCIRIK Date: Feb/03 Page: 60of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

l CRDM Temperbead Bore Weld Analysis NON-PROPRIETARY DOCUMENT NUMBER PLANT CONTRACT NUMBER F ANJ 32-5020244-01 I POINTBEACH 1 1 4160094 Computer Files The ANSYS computer files used for the Appendix A are following:

Computer Output Files (See page 42)

File Name Description A) Original J-groove Weld HUCDPBW1 .out HUCD old weld stress post-processing HUCDPBW2.out HUCD old weld stress post-processing PLULPBW1 .out PLUL old weld stress post-processing PLULPBW2.out PLUL old weld stress post-processing SL1 OPBWI.out SL 0 old weld stress post-processing SLI OPBW2.out SL10 old weld stress post-processing SL50PBWI.out SL50 old weld stress post-processing SL50PBW2.out SL50 old weld stress post-processing RTPBW1 .out RT old weld stress post-processing RTPBW2.out RT old weld stress post-processing LFPBWI .out LF old weld stress post-processing LFPBW2.out LF old weld stress post-processing LLPBW1.out - LL old weld stress post-processing LLPBW2.out LL old weld stress post-processing B) Temperbead Repair Weld HUCDPBfr.out HUCD rep. weld stress post-processing PLULPBfr.out PLUL rep. weld stress post-processing SLI OPBfr.out SL 0 rep. weld stress post-processing SL50PBfr.out SL50 rep. weld stress post-processing RTPBfr.out RT rep. weld stress post-processing LFPBfr.out LF rep. weld stress post-processing LLPBfr.out LL rep. weld stress post-processing Prepared by: J. KREJCIRIK Date: Feb/03 Page: 61 of 61 Reviewed by: J. F. SHEPARD Date: Feb/03

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