ML20113F816

Rev 2 to SAD-431, Evaluation of Energy Absorbing Matl for Pipe Whip Restraints

ML20113F816
Person / Time
Site:	Byron, Braidwood, 05000000
Issue date:	01/31/1985
From:	Kao G, Teh-Chiun Su, Yang M SARGENT & LUNDY, INC.
To:
Shared Package
ML20113F780	List: ML20113F776 ML20113F796 ML20113F816
References
SAD-431, SAD-431-R02, SAD-431-R2, NUDOCS 8501240141
Download: ML20113F816 (8)

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J EVALUATION OF ENERGY ABSORBING MATERIAL FOR PIPE WHIP RESTRAINTS Commonwealth Edison Company Byron and Braidwood Stations, Units 1 and 2 Project Nos. 4391/4392/4683/4684 Nuclear Safety Related SAD File Index No. 8.15.1-9 I

G. C. Kao ,

M. S. Yang i T. Y. Su '

k-Revision 0 - March 1984 Revision 1 - April 1984 i Revision 2 - January 1985 Report No.

SAD-431

SARGENT&LUNDY ENGINEERS .

8501240141 G50116 PDR ADOCK 05000454 P PDR

SAD-431

,, , Rev. 2 January 1985 Structural Analytical Division Report Issue Summary {,

" Proj ect Byron /Braidwood Number 4391/4392 U* Name 4683/4684 o9 gM Client Commonwealth Edison Company u Report Evaluation of Energy Absorbing Material g, Title for Pipe Whip Restraints I9 f Report Nu=ber SAD-431 Nuclear Safety Related Yes b No O signatures Date Identification of Revisad Pages N &

Prepared by: 4 l /[y./ Revision of E a on pages 2,3 Rev. 2 17 and 18. Deleting 1/14/85 Figure 1 on page 21.

Changing page lii to Revieded by: M  ! E#9" iv*

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TABLE OF CONTENTS i J

Section DESCRIPTION PAGE

SUMMARY

AND CONCLUSIONS 1 1.1 Introduction 1 1.2 Summary 2 13 Conclusions 3

- 20 TEST SPECIMENS 5 3.0 TEST CONDITIONS'AND MEASUREMENTS 7 s t

31 Test Conditions 7 3.2 Measurements 7 i

4.0 TEST EQUIPMENT AND INSTRUMENTATION 9 4.1 Test Equipment 9 42 _ Instrumentation 10 43 Remarks 12 5.0- DATA REDUCTION 14 51 Energy and Displacement 14 52 Energy Absorbed per Unit Volume 16 5.3 Qualification Tests 17 h TABLES 18 FIGURES 21 APPENDIX A - Energy-Displacement Plots Al -

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fSection 5 describes the procedures used to reduce the ,

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acquired force data to obtain kinetic energies and displacements o the test specimens. Also, the procedures used to evaluate the " Energy Absorbed per Unit Volume (EAUV)" are also presented. The quantity EAUV is also defined as Ea, where appropriate, in this report. The calculation of E a is documented in SAD Calculation No.

8.15.1-9. Finally, the results of the qualificat.1..n tests are also presented in this section.

The results of the test program are summarized in Section 1.2. .

1.2 Summary A summary of test results is presented in Table 1. This P table presents the values of the essential test parameters in Columns 1 through 4, the measured data in Columns 5 through 7, and the calculated data in Columns 8 and. 9. A summary of test data on EAUV is plotted in Figure 1 j The key findings of the tests may be summarized as follows:

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s, The E a in the strong-shear direction at 90 0 impact varies from a minimum of 6.1 IN-KIP /IN3 to a maximum of 7.6 IN-KIP /IN3, ,

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b. The E, in the weak-shear direction at 90 0 impact varies from a minimum of 5 2 IN-KIP /IN3 to a maximum of 7.2 IN- -

KIP /IN 3 ,

c. The E, in the strong-shear direction at 120 impact is 8.2 IN-KIP /IN3, '

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d. The E, in the weak-shear direction at 120 impact is 6.5 ,

IN-KIP /IN3, ,

e. The E a in the bolted configuration at 90 0 impact is 6.6 IN-KIP /IN 3, l

f. The test data on 4x4x3 SS were not recorded. However, ,

test data obtained from the remaining EAM specimens are considered adequate to provide information on EAUV. >

Consequently, the missing test record does not have an adverse impact on the test results. *

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1.3 Conclusions i

The conclusions drawn from the results of the EAM test program are as follows: -

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a. The average value of E a at 50% strain is 6.2 IN-KIP /IN3 ,

with a range of 5.2 IN-KIP /IN3 to 7.6 IN-KIP /IN3 The corresponding qualification test samples average were 3

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SAD-431

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• R:v. 2 January 1985 The final adjusted values of E a, as shown in Table 1, vary between 5.2 IN-KIP /IN3 to 8.2 IN-KIP /IN3, '

53 Qualfication Tests A total of five qualification tests was performed by HEXCEL to establish EAUV under the normal impact condition. The five specimens were designated as G, H, X, Y and Z. The test conditions and results are summarized in Table 3.

The tests on specimens G and H were performed per Sargent &

Lundy's specification No. FL-2409. Additional tests were performed on specimens X, Y and Z to obtain the information on crush strain.

The values of E a obtained from the qualification tests vary ".

from 5 32 IN-KIP /IN3 to 7.80 IN-KIP /IN 3, c

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TABLE 1 c

SUMMARY

.OF TEST PARAMETERS AND RESULTS . .

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(1) (2) (3) (4) (5) (6) (7) (8 ) * (9) {

TOTAL SALDLE EAM DESIGNATION OF ANVIL DROP DROP IMPACT DIS- CRUSH E*

ULTIMATE ,

TEST SPECIMEN ANGLE WEIGHT HEIGHT VELOCITY PLACEMENT DISTANCE STRAIN IN-KgP/ [

(DEGREE) (LBS . ) (IN) (FPS) (IN) (IN) IN (IN/IN) j 3 x 3 x 3 WS 90 1975 120 25 00 2.90 2.06 5.6 0.67 3 x 3 x 3 SS 90 1975 120 25.03 2.85 2 00 6.1 0.66 ,

4 x 4 x 2 WS 90 1975 120 24 99 1.83 1.27 5.2 0.61 4x4 x 2 SS 90 1975 120 25.02 1 33 0.88 7.6** 0.43 i i

4 x 4 x 2 5/16 WS 120 0 2400 120 25.07 2.13 1.33 6.5 'O.55 4 x 4 x 2 5/16 SS 120 2400 120 25.07 2.13 1.01 8.2** 0.43 i

4 x 4 x 3 WS 90 3050 120 25.08 2.72 1.87 55 0.62  !

$ 4 x 4 x 3 SS 90 3050 120 25 11 2 18 1.77 + 0.58 f

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4 x 4 x 4 WS 90 4000 120 25.09 3.67 2.57 5.5 0.64 l 4x4 x 4 SS 90 4150 130 26.04 3 52 2.35 6.4 0.58 4 x 4 x 4 BT 90 4150 120 25 09 2.78 2.45 66 0.60 5 x 5 x 4 WS 90 6550 120 25 34 3.74 2.59 5.9 0.65  !

5 x 5 x 4 SS 90 6550 120 25 37 3.23 2.25 6.8 0.56 I

6 x 6 x 3 WS 90 0 6925 120 25.32 2.35 1.54 7.2 0 50 '

6 x 6 x 3 SS 90 6925 120 25 33 2.28 1.47 7.6 0.50 S5$

o<a Legends: * =E a is computed based on 50% strain. @

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• • = E a is computed based on maximum strain obtained from the test. N "

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SAD-431- '

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SUMMARY

OF:' ENERGY.' ABSORBED PER UNIT VOLUME OF EAM SPECIMENS 4 .- . , , ,

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