ML20113F816

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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:
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

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4391/4392 Proj ect Byron /Braidwood Number U*

Name 4683/4684 o9 gM Commonwealth Edison Company Client Report Evaluation of Energy Absorbing Material ug, Title for Pipe Whip Restraints I9f Report SAD-431 Nuclear Safety Related Yes b No O Nu=ber signatures Date Identification of Revisad Pages N &

Rev. 2 Prepared by:

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Revision of E on pages 2,3 a

17 and 18.

Deleting 1/14/85 Figure 1 on page 21.

Changing page lii to Revieded by:

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SAD-431

,,4 Rav. 2 January 1985 TABLE OF CONTENTS i

J Section DESCRIPTION PAGE

1.0 INTRODUCTION

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

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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 i

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SAD-431 Rev. 2 January 1985 fSection 5 describes the procedures used to reduce the y

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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 is documented in SAD Calculation No.

a 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:

i.

The E in the strong-shear direction at 90 impact 0

s, a

varies from a minimum of 6.1 IN-KIP /IN3 to a maximum of 7.6 IN-KIP /IN3, 1

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SAD-431 Rgv. 2

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January 1985 b.

The E, in the weak-shear direction at 90 impact varies 0

from a minimum of 5 2 IN-KIP /IN3 to a maximum of 7.2 IN-3 KIP /IN,

The E, in the strong-shear direction at 120 impact is c.

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 in the bolted configuration at 90 impact is 6.6 0

a 3

IN-KIP /IN,

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 at 50% strain is 6.2 IN-KIP /IN3 a

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 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 obtained from the qualification tests vary a

from 5 32 IN-KIP /IN3 3

to 7.80 IN-KIP /IN,

c 6

a 17

TABLE 1 c

SUMMARY

.OF TEST PARAMETERS AND RESULTS

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(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8 ) *

(9)

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TOTAL SALDLE EAM E*

DESIGNATION OF ANVIL DROP DROP IMPACT DIS-CRUSH ULTIMATE TEST SPECIMEN ANGLE WEIGHT HEIGHT VELOCITY PLACEMENT DISTANCE IN-KgP/

STRAIN

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(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

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4 x 4 x 2 5/16 WS 120 2400 120 25.07 2.13 1.33 6.5

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4 x 4 x 2 5/16 SS 120 2400 120 25.07 2.13 1.01 8.2**

0.43 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

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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

0 6 x 6 x 3 WS 90 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$

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  • 1 o<a Legends:
  • =E is computed based on 50% strain.

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

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SAD-431-soo Rav. 2

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SUMMARY

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

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