ML20063E187

Final Deficiency Rept Re Low Lockoff Pressure Readings on 113 Fl Wire & Cable Co post-tensioning Sys Horizontal Tendons.Initially Reported on 810717.Tendons Retensioned & Stress Relaxation Tests Performed.Also Reported Per Part 21

ML20063E187
Person / Time
Site:	Bellefonte
Issue date:	08/20/1982
From:	Mills L TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
REF-PT21-82 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8208300165
Download: ML20063E187 (35)

Text

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T TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE 37401 400 Chestnut Street Tower II August 20, 1982 BLRD-50-438/81-49 U.S. Nuclear Regulatory Commission Region II Attn:

Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303

Dear Mr. O'Reilly:

N BELLEFONTE NUCLEAR PLANT UNIT 1 - LOCKOFF PRESSURE ON POSTTENSIONING h

SYSTEM - BLRD-50 It38/81 FINAL REPORT g

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m3; The -subject deficiency was initially reported to.NRC-0IE Inspector R. V. Crlenjak on July 17, 1981 in accordance with 10 CPR 50.55(e) as 3 z,

NCR BLN CEB 8104. This was followed by our interim reports dated G

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August 17, September 18, and November 17, 1981 and January 7 and March 30, 1982. As discussed with D. Quick on August 12, 1982, enciesed

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is our delayed final report. We consider 10 CFR Part 21 applicable 40 this deficiency.

If you have any questions concerning this matter, please get in touch with R. H. Shell at ETS 858-2688.

Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, Panager Nuclear Licensing Enclosure cc:

Mr. Richard C. DeYoung, Director (Enclosure)

Office of Inspection and Enforcement U.S.- Nuclear Regulatory Commission Washington, DC 20555

[felfflCIALCOPY 8208300165 820824

^

%EAY PDR ADOCK 05000438 S

PDR An Equal Opportunity Employer

s' ENCLOSURE Bl!LLEFONTE NUCLEAR PLANT UNIT 1

. LOCKOFF PRESSURE ON POSTTENSIONING SYSTEM NCR BLN CEB 8104 BLRD-50-438/81-49 10 CFR 50.55(e)

FINAL REPORT Description of Deficiency Inryco, Incorporated, Bedford Park, Illinois, has been contracted (contract-75C53-85380) to supply and ^ install the posttensioning system for the primary containment structures. Allowable lockoff stresses for each tendon have been established by Inryco in accordance with the April 1973 Trial Use Version of the ACI 359 code and the. contract specifications. These lockoff stresses are required to provide assurance that the containment structure will have adequate prestress force to perform its intended safety function.

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In order to maolve a problem with certain stressing gauges being out of calibration, Inryco performed liftoff tests on several horizontal tendons.

These lift off tests realed that, in several cases, lockoff stresses were substantially lower than predicted. Based on TVA's review of the sample liftoff data, it was concluded that the scope of the low liftoff problem is limited to tendons fabricated with wire supplied by Florida Wire and Cable

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Company (FWC), Sanderson, Florida. All.113 of these tendons were used in the unit I horizontal prestress.

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~~ v Safety Implications The tendons used in the posttensioning system of the primary containment structures are an integral element of that system. If the tendons did not maintain an acceptable percentage of the initial'lockoff stress induced on

..T the tendons, the ability of the posttensioned primary containment i

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structures to withstand pressurization would be degraded. This would be a i W

- condition adverse to the safety of operations of the plant. However,.the

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tendons have been matressed and tested. The results of these tests indicate that the tendons have an acceptable 40-year stress relaxation value. Consequently, there is no condition adverse to the safety of operations of the plant.

Corrective Action Subsequent to the discovery of the described deficiency, testing programs l

were initiated by Inryco and TV! b e teriAne the cause of the low lockoff readings. Inryco's testing pr 4 e consisted of tests performed by Florida Wim and Cable Company and ?h"er) =dee Draadindustrie (NDI). The TVA

. testing program consiste.

r e. performed by TVA's Singleton Materials Engineering Laboratory 4W h

, Wlts of these testing programs produced 40-year stress relaxatier. values averaging 15.0 percent proving that tue low lockoff readings of the 113 unit 1 horizontal tendons fabricated with FWC wire were because of mlaxation characteristics substantially in excess of the contractually'specified 8.5 percent.

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Because of the failure to meet this_ contract requirement, Inryco chose to retension the 113 tendons in lieu or replacing them. <Confirmar,ory liftoff readings have been taken on the atensioned tendons which verify the adequacy of this corrective action. In order to cbtain additional verification of the adequacy of retensioning, stress relaxation tests were performed by NDI, at Inryco's request, and SIE en retens!oned FWC wire.

Results of these tests produced 40-year stress'reiaxation'. values averaging

-7.1 percent.

1 Therefore, based on the above, it can be seen that by~ retensiorting thr113 PWC tendons, the tendons now possess 40-year stress relaxation values well t

below the mquired value of 8.5 percent.

Copies 'of all{ tast reports mentioned above we attached.

, r No action to 'preverat recurrence is warranted as, the job is ~ complete. TVA has no other nuclear plants with a prestressed' containment.,- Therefore no other nuclear plants are affected.

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. 24-Hour Ralexction Tast v;pc or A.

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Sason 3_17_77

.250 BA Uire - 81/2% Grad.

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The' wire sa'mple to be tested for stress relaxation should b'e placed

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inside the stress relaxation test room at least 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> prior to start of test to make sure that the sample is at 680F, the temperature at which the test is conducted.

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Af ter anchoring the sample in the test equipment, a load' of 320 lbs. is applied 't'o set the initial gage length of the test sample and then ten-sioned to the specified load which is 70% of the minimum ultimate strength as specified in ASTM A-21-74.

The load shall be applied,as uniformly as po'ssible over a period of five minutes.

3.

At the instant when full load is reached, the stress relaxation begins.

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• readings are taken at the following time intervals after full load was reached:

30 minutes, 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

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The temperature at which the test is conducted is maintained at 68 -l-0

% 5 F ns specified in Section 56.2 of Supplemenc 1 for Low-Relaxation Wire in ASDI A-421-74.

The other test conditions as prescribed in ASD1 E-328, Recommended Practice for Stress Relaxation Test, are followed in conducting ThT~2T:h'5ur Relaxation Test.

M 5.'.The~ loss in stress with time is plotted on a log-log paper.

C The average relaxation for any lot of wire as measured by the 24-hour test shall not exceed 3.5%.

The relaxation of any single test specimen shall not exceed 4.2%

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MATERIAL:

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SRS SPECIFICATIONS:

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ENVOI OF SMOOTH k' IRE 6.35 mm Din.

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Number of Samples:

4 samples of 0.8 m length and 2 samples of 0.6 m length Mechancial Properties:

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Diameter (mm) 6,35 6,35 Section-(mm )

31,67 31,67 Breaking Force (N) 54300 54800 2

Breaking Stress (N/mm )

1715 1730 Tests Required:

Different tests for isothermal relaxation:

6 total.

Test No. 1:

Test for relaxation at 2000 hours0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> at 20 C with an initial tension of 168.000 psi (= 1158,33 N/mm2).

-Test No. 2:

Test for relaxation at 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br /> ar 20 C witli an initial.

tension of 168.000 psi.

Af ter 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br />, do not remove the sample but bring back the tension anew to a 168.000. psi and redo a relaxation test for 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br />.

Test No. 3:

Test for relaxation at 2000 hours0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> at 30 C with an initial tension of 168.000 psi.

As we discussed on the telephone these 3 tests should be done on the same day if possible.

We ask you also to communicate the relaxation values af ter 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br />.

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The 3 tests shall be done a second time, so that there will be 6 tests alh.

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-together.

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Conditions of applying force in the tests:

Given that.the tests are to be l

conducted according to the AST}1 norms, we provide you with the slight diff erences that exist from the current relaxation tests:

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The force must be applied in between 3 to 5 minutes; 1 minute only for neutralization.

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LABORATORY FOR TESTS AND RESEARCH T ~-

ON THE PROPERTIES OF MECHANICAL COMPONENTS 81-185/1 4/13/82 N

PROCES-VERBAL KO.81-185 This report consists of 3 pages numbered 81-185/1 through 81-185/3 and two figures A and B.

NATURE OF THE MATERIAL Smooth wire of 6.35 mm dia..

NATURE OF THE TESTS Relaxation isotherns were done at an initial tension of 168.000 psi and a

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temperature of 20 C maintained constant within 1 C.

The test is conducted in accordance with ASTM A 421.

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TEST REQUEST Letter from Mr. Rys, dated Dec. 10, 1981.

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ORIGIN (SOURCE) OF MATERIAL

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Product of USA

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l MICEANICAL PROPERTIES The mechanical properties 'of the wire are given in the following tabler A

B (Avg) i a

2 Section mm 31,67 31,67 31,67 l

l Breaking Force N 54300 54.800 54.550 I

t" 2

Breaking Stress N/mm 1715 1.730' 1.722,5 l n g:;;

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• ' Information furnished by the client.

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- DIMENSIONS OF THE SAMPl.E '

Nominal Dismeter um 6,35

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. Total Length um' 600 Initial length between 2 anchorages em 500 Initial length of measurement um 200 TYPE OF MACHINE USED The relaxation machine used is essentially a balance with double levers for magnifying forces:. all the movements are realized by means of tempered steel.

l knives which are themselves supported on seats of equally tempered steel.

PRECISION OF THE TESTS The initial force Fo is measured within 0.4%.

The initial length is maintained constant within 0.1%.

Relaxation is measured at least within.05% of the initial force Fo.

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CONDITIONS OF APPLYING THE FORCE Force is applied in 5 minutes at a nearly constant speed.

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_ Time of neutralization: 1 minute E.

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' Start date of test:

12/15/81

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2000 hours0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br />

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o Average temperature:

20.2 C

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Maximum measured deviation from the reported avg. temperature.-

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' Time in Relaxation Time in Relax 51on

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Minutes in % of Fo Minutes in % of Fo^

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O,097 4790 3,80 3

0,20 8694 4,15 L.

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0,39 11484 4,46 12 0,44 28800 5,63

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45 0,85 51 0,89 34545 5,B9 38867 6,05 64 0,98 41715 6,18 77 0,05 96 1,15 44603 S,29

.b 137 1,32 50390 6,51 205 1,52 60469 6,81' 270.

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• 0,000 1. day 2,85

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1.500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> 7,54 1 f.

1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.

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'2;m.3 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />

'i,29 2.000 h,ours,

8,10 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> 1,63 3.00d hours

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~~ a. LABORATORY FOR TESTS AND RESEARCH ON THE PROPERTIES'OF ~ r MECHANICAL COMPONENTS -I 81-186/1 4/13/82 PROCES-VERBAL NO. 81-186 This report consists of 4 pages numbered 81-186/1 thru 81-186/4 and three figures A, B and C. NATURE OF HATERIAL Smooth wire of 6.35 mm dia. g NATURE OF TESTS 4 Relaxation isotheros were done at an in*itial tengion of 168.003 psi and a g temperature of 20 C maintained constant within 1 C..The test is conducted-in accordance with ASTM A 421. "~ Af ter 1000 hours, the sample is brought back to the initial tension of - (. 168.000 psi. Relaxation is measured again during a 1000 hour period. i' ' ,:K.- TEST REQUEST j_ Letter of Mr. Nys, dated Dec. 10, 1981.

• x W?'

w ORIGIN -(SOURCE) OF 'ifATERIAL

• Product of USA MECHANICAL PROPERTIES The mechanical properties of the wire are given in the following table:

i.. B (Avg) A 2 Section t:m 31,67 '31,67 31,67 .-c i' Braaking Force N 54300 54.800 54.550 Breaking Stress N/u:m 1715 1.730 1.722,5 18is Is2 _

a n.

Information furnished by the client. 1 j E E.y ? .w ,e s 9 -ai- ---s m

!DDENSIONS OF THE SAMPLE ~ Nominal Diameter mm, 6,35 Total Length mm 600 mm 500 Initial length between 2 anchorages ~ Initial length of measurement. mm 200 TYPE OF MACHINE USED The relaxation cachine used is essentially a balance with double levers for magnifying forces: all the movements are realized by means of tempered steel knives which are themselves supported on seats of equally tempered steel. PRECISION OF THE TESTS The initial force Fo is meastired within 0.4%. The initial length is maintained constant within 0.1%. Relaxation is measured at least within.05% of the initial force Fo. CONDITIONS OF APPLYING THE FORCE' Force is'ap' plied in 5 minutes at a nearly constant speed.

{9 Time of neutralization: 1 minute Af ter 1000 hours, the sample force is brought back instantaneously to the s*

initial conditions (Oo = 168000 psi, T = 20 C). The time of neutralization was 1 minute. .u. -A.".- [k Exact initial force: 3668 dan xn =,s;=. TIE MFC. Start date of test: 12/15/81

yn

'i@ Total duration of test: 2000 hours k'+2. O Rf Average temperature 1 20.2 C 3. Maximum measured ~ deviation from the reported avg. temperature: 0.5 c. 3. t S. +. a. 43"i 4,:,, 'w:: +.- g ra %@f' ', Kmg.,., J. n.... JQe: 7- ,~.s, .m S. 2 - em ata y fjf ' ' bf; _ _.. 1:=:.:_:r; g ... m.. ;, {

RESULTS OF T1.iE TEST FOR Tile FIRST 1000-Il0UR PERIOD (FIG. A)...

I . Time in Relaxation Tima in Relaxa tion Minutes in % of Fo Minutes in % of Fo E.a '~ i 1 0,097 1460'

• 4,01 3

3 0,28 1805 4,20 S O,48 2880 4~,65 I 4 9 0,61 3380 4,81 12 0,72 4314 5,03 ~ } 15 0,81 4820 5,14 19 0,93 8720 5,75. 23 2,01 10057 5,93 3 37 1,26 11497 6,10 SO 1,57 11952 S,15 [ 78 1,73 28815 7,30 I 90 1,84 31SSS 7,43 I 105 1,94 34570 7,55 -f' 125 2,07 38895 7,71 165 2,27 41740 7,82 ] 235 2,54 44630-7,93 3 295 2,71 50415 8,14, 465 3,09 60495

• 8,43 y

.i s ..] = ~ .g VALUES OF RELAXATION AT STANDARD TIMES ( on the curve) Stan'd$rdTimes: Relaxation Standard Times in % of Fo in % of!Fo i l O minute? O,000 1 day 4,04 -d 1 minute 0,096 2 days - 4,69 -i 3 minutes 0,29 3 days .~5,08 ,,[ 6 minutes 0,47 4 days 5,34 9 minutes O,60 5 days. 5.58 15 minutes 0,84 10 days. S,36

.3 30 minut'os 1,19 500 hours.

7,37 ho'urs 6,44 ~ 45 minutes 1,41 1,000 ~ 't. 47 1 hou.r 1,58 T' ) va. 2,02 .:~ 2 hours , j ;;. 4 hours 2,53 it n kniiv:= 3,14

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28907, 2,67 R

1145 0,75 41360 3,17 3 1575 0,83 57700 3,68' 2555 0,98 60140 3,77 6795 1,46 . 'i Y .s I' r l' J 3 T.T. g E

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r t N 1l w 1. VALUES OF RELAXATION AT STANDARD TDIES ( on the curve) Relaxation Relaxation Stan'dard Times Standard Times in.% of Fo in.% of Fo- ': i tl 0 minutet 0,000 1 day 0,83 1 minute ,0,000 2 days 1,04 i "- O 3 minutes 0,080 3 days 1.20

U,.

6 minutes 0,15 4 days 1,33 .. t llj 9 minutes 0,18 5 days . 1.46 15 minutes 0,22 1O days 2,01 30 minutes 0,29 500 hours 2,77 45 minutes 0,32 1.000 hours. 3,75 15 l-, ~ 1 hour 0,35 1.500 hours. / 4,B7 x ~~ n-r '" 2 hours 0,41 2.000 hou.rs 5,04 x l 4 hours 0,49 3.000 hours 6,04 x t O,58

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LABORATORY FOR TESTS AND RESEARCH i ON THE PROPERTIES OF .1ECHANICAL COMPONENTS 81-187/1 4/13/82 PROCES-VERBAL NO. 81-187 This report consists of 3 pages numbered 81-18'l/l thru 81-187/3 and two figures A and B. NATURE OF THE MATERIAL S:nooth wire of 6.35 mm dia. NATURE OF THE TESTS Q3 * # 'd Relay.ation isotheros were done at an initial tengion of 168.000 psi and a g temperature of 30 C maintained constant within 1 C. The test is conducted in accordance with ASTM A 421. a-TEST REQUEST Letter from Mr. Nys, dated Dec. Id, 1981. / s r-ORIGIN (SOURCE) OF MATERIAL

• YW Product of USA g-MECRANICAL PROPERTIES.

~ The mechanical properties of the wire are given in the following table: A B (Avg) ~ Section tzn 31,67 31,67 31,67 Breaking Force N 54300 54.600 54.550 Breaking Stress N/mm 1715 1.730 1.722,5 .[

• Information furnished by the client.

~.3

7f;. <

."p' $. /.. I '.... ~ ' ~ y; w - ,g;j;7 .p _'~

DD4ENSIONS OF THE SAMPLE . Nominal Diameter m 6,35 Total Length m 800 700 Initial length.between 2 anchorages mm 2b0 ~ Initial length of measurement um ' TYPE OF MACHINE USED The relaxation machine used is essentially a balance with double levers for ~ magnifying forces: all the movements, are realized by means of tempered steel knives which are themselves supported on seats of equally tempered steel. PRECISION OF THE TESTS The initial force Fo $ s measured within 0.4%. The initial length is maintained constant within 0.1%. Relaxation is measured at least within.05% of the initial force To., CONDITIONS OF APPLYING THE FORCE Force is applied in 5 minutes at a nearly constant speed. Time of neutralization: 1 minute Exact initial force Fo = 3668 dan .r.-. p o,.. s .mu ~ ~ Start date of test: 12/15/81 MM .['. ~ Total duration of test: 2000 hours Average temperature: 30.1 C Maximum measured deviation from the reported avg. temperature: 0.2 ,C ~,, l l i r n. k .k. ~ l ' j ?- t i -g. - 4.p#y^ s. [ M,e e.. y, m., .~. l N 3,g> --,e - e- -.,~ ( -h6 , m., .c, h.. % _ .M* Qia', 4 w.2%

a..., -.

'y gg' . ~ n;n - = 8:w. . _w l y t;;. e p ,,%.~

81-1'.7/3 RESULTS OF TEST ', Time in Relaxation Time in Relaxation Minutes , in % o f Fo Minutes in % of Fo ~ .s 0,13 9990' 5,97 ~ - 1' ~ 3 0,31 11438 6,19 "~ 3j S O,47 28750 7,84 li 9 0,60 31610 8,03 13 0,74 ~~ 34502 8,20 i 18 0,85 38825 8,42 1,17 41673 - 8,55 36 60 1,46 44562 8,69 l-97 1,75 50347 8,93 l 1'S5 2,09 60427 9,27 ~ i 227 2,29 64860 9,41 395 2,69 69024 9,52 1730 3,81 74800 9,68-jt 2810 4,30 '82010 9,85 3310 4,46 91140 10,05 1 4245 4,75 103595 10,33 5 4750 4,88 119930 10,58 5,75 .2 E B653 - 23 J .I s s l y

)

~' .') [ VALUES OF RELAXATION AT STANDARD TIMES ( on the curve) ,s, Relaxation elaxadon I~I St'andard Times Standard Times ,in % of Fo in.% of'Fo r 'i ,'t O minute-0,000 1 day 3,78 3 1 minute 0,12 2 days 4,44 3 minutes 0,30 3 days 4,91 3 6 minutes 0,48 4 days 5,28 9 minutes 0,61 5 days 5,62 15 minutes 0,83 10 days S,SS ..l 14,.g.2 30 minutes 1,14 500 hours 7,90 5'P.g ti 45 minutes 1,33 1,000 hours . 9,24

1. hour 1,50 1.js00 hours.

"10,08 2 liours 1,92 2.000 hours '10,65 t' u E*--- 2,38 9 nnn kn,,v. 11,SS x s.

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K. Page ~ I'~ ' S$=pleloadeduithin12-minperiod .Saaple-Top - No. l Elapsed 1 2 Date Tine Tine Lef t Ind Right Ind Elongation aElongation Load Temp-1:10 3-3 pm 0 0.3441 0.7S42 0.2886 0 8247 '68.5 0.7841 0.2885 -0.0001 8228 1 min 2 min y y -0.0001 8213 3 min. - 0.3440 0.2884 -0.0002 8207 4 min 8202 5 nin 8199 ~ ~ 6 nin 8194 7 min 8191 8 min I 8188 '~ 9 min 8185 .+ 5; 10 min 8'182 .,a Isif 11 min ,8177 -p P 12 t:.in 3177 i ^/ 13 min 8177 ~~~ 8176 14 min a 15 nin v Y Y Y 8173 68.5 ~ l..,' p. 20 min 0.3439 ~0.7840 0.2882 -0.0004 8161 25 min 8155 9:: 30 min 8152 m 1 ' ? 35 nin 8147 d. 1:50 .h Pm 40 min y V y V~ slu + ba. 03 1.ine)) + (Right Ind Right Ind (0.80S5 O*1. f Elongation = (Lef t'-Ind - Lef t Ind 0 se . base lit '.Qp, _ ~~~~ ~ 25Y2.' LElon'gation = (Lef t Ind - Lef t Ind(t=0)) + (Right Ind - Right Ind(t,0)) . gg. .g .x

03. Temperature:shall be continuously nonitored by. strip chart recorder.

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O.25-IN. DIA FUC 210 BD TENDON UIRE, ~ Page 2 Sample-Top No. 1 Elapsed 1 2 Date Time Time Left Ind Right Ind Elongation 6 Elongation Load Temp-1:55 3-3 pm

45. min 0.3439

. 0.7840 0.2882 -0.0004 8139 60 min 8128 68.5 1.25 h '8119 ~ ~ 'l.50 8114 2:55 pa 1.75 '8103 2.00 8104 2.25 8099 2.50 8095 3:55 pm 2.75 8092 d. 7:40 3-4 .a ,m 1R_sn 8010 6S.5 8:.40 - -If. am 19.50 Ron7 'O 9:10 , 3 am 20 h 8007 7"~ 10:10 .am 21 -8G04 @gr. 11:10 je am 22 8001 ?O 12:10 pm 23 8000 l 2.0 1:10 um 24 7997 i. 2:10 l '"i om 25 7996 - ld 3:10 pm 26 7994 h,.. C:10 it 3-5 cm 43 7966 4 2:10 \\/ V V 7961 ' iE pm 49 V w 8:10 s

w?hj 3-8 pn ' '.

115 0.3440 0.7841 0.2884 0.0002 7900 I pl.- Elonga, tion = (Lef t Ind - Lef't Ind(base.1x.nc)) +. (Right Ind - Right Ind (base 11: s' a v .. u.... ._;= if.longation = '(Lef t Ind - Lef t Ind(t=0)) + (Right Ind - Pight Iftd [0 ) ~ v 4+= :_=.. ~ M!3.liTempf ature shall' be continuously raonitored by strip chart recorde'r. ~ "~

~ ~ 0.25-IN. DIA FRC 210 ID TENDON WIRE Page' T~ ~ y-Sample: Top - Ko'.1 Elapsed 1 2 j' Date Time Time Lef t Ind Right Ind Elongation AElongation 1.oad Temp-2:10 3-8 pm 121 h 0.3435 0.7836 0.2874 -0.0012 7897 2:40 o, m 121.5 0.3449 0.7834 0.2886 -0.0000 7940* 8:10 3-9 am 139 7929 8:10 3-10 cm 163 7919 11:10 7901 3-11 am 190 8:10 3-12 am 211 7895 3-15l 8:10 am 283 V V \\/ 7863 8:10 3-16 ~ am' 307 0.783s 0,2887 +0.0001 7856 8:10 3-17 am 331 V v v 7scs a [$ 8:10 4: 3-19 nm' 379 0.3450 0.28SS +0.0002 7828 i 8:10 am 451 7S10 ~ T.' 3-22 ,M 8:10 si 3-24 am 499 7793 l mt. 8:10 7784 ! g;. 3-26 en $47 .u.. 8:10 7,.4 i 3-29 am 619 7767 .i 8:10 l a 3-31 cm 667 7757 72. 8:10 +' 4-2 am 715 7753 4-8:10 7736. i 4-5 an 787 ~ 8:10 4-7 nu mg 8:10 7722 7 4-9 cm 883 Sc 8:10 4-12 7712 ~ ~ am 955 8: 10 ~ am 1003 V V V V 770s ji 4-14 v., , (g.'h l' Elongation =,(Lef t. lnd - Lef t Ind(base la..ne)) + (Right Ind .Right Ind (base li .c l _.Lw;.. /Elo6gation = (Lef t Ind - Lef t Ind(t=0)) + (Right Ind - Right Ind(t-0)) A l 252. l #: o p;g - s.. "'~%3. ' Temperature shall be continuously monitored by strip chart recorder.

b1RESS Kr.LluAnua 'it. dis ~ 0.25-IN.-DIA WC 210 ED TENDON WIRE Page "4 Sample:. Top'No. 1 Elapsed 2 3 1 Date Time Time = Left Ind Right Ind Elongation 6 Elongation Load Temp U:10 ... D.. 4-16 am 1051 0.3450 0.7835' O.2888 +0.0002 7702-70 F 8:10 4-19 .am 1123 7692 - 8:10 4-26 am 1291 7670-8:10 5-3 am 1459 Y V - V h-7656-6:10 5-10 am '1627 0 3451 0.7836 0.2890 -FO.0004 7640 s:1u 5-17 am 1795 7624 3:10 5-25 pm 1994 7612 9:10 ~ ~ 5-26 am .2012 Y. Y . V Y. ' 7610 9:10 5-28 am 2060 0.3656 0.7832 0.3091 Restressed .8234 10:10 6-1 am 2157 0.3655 0.7832 0.3090 0.0001 8130 8:10 I 6-4 am 2227 Y-V V y su2 2-8':10 , 5 6-8 am 2323 0.3656 0.3091 0.0000 8107 ~-X 8:10 am 2395* '8093 _T. 6-11 l. G: 8:10 ' We 6-15 am 2491 8080 l p 8:10 6-18 am 2563 8067 8:10 ~ if 6-22 am - 2659 8055 .j. ~" 8:10 6-25 am 2731 8047 8:10 .a 6-25 am 2827 8038 E 8:10 7-2 am 2899 8027 l N 8:10 t.1 7-6 am 2995 8019 si5 3:10 jEf 7-8 pm 3050 - Y Y Y Y 8014 Ex~,. O*g. s -Q. Elongation = (Lef t' Ind - Lef t Ind(base line)) + (Right Ind - Right Ind (base line gn l n n. AElohgation = (Lef t Ind - Lef t Ind(t=0). ( ig t Ind - Rightpd(t= }) 2. 3, +j un 4- .v-M_ l4. Temperature shall be continuously monitored by strip chart recorder. =._ M,7 ~ f O'gt ~_

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STRESS RELAXATION TESTS 0.25-IN.-DIA FWC 210 BD TENDON UIRE Page 5 Sample: Top No.1 Elapsed 2 3 1 AElongation Load Temp Date Time Time Lef t Ind Right Ind Elongation 5:10 7-9 am 3067 0.3656 ~ 0.7832 0.3091 0.0000 8012- ~ UNLCADING DATA 1 O cin 6 sec 0.'3656 0.7832 0.3091 8012 1 min 50 sec 0.3511 0.7835 0.2949 7568 2 min 39 sec 0.3319 0.7834 0.2756 7003 3 min 56 see - 0.2968 0.7845 0.2416 5997 5 min 08 sec 0.2618 0.7852 0.2070 4975 6 min 4 37 sec 0.2338 0.7859 0.1800 5008 7 min ~ 52 see 0.1993 0.7864 0.1460 2997 A

9. min 00 sec 0.1649 0.7865 0.1117 1992 p..:

10 min 0.0769 1069. A. 10 sec 0.1302 0.7864 ~ yj;n 11 min ~ 10 see 0.0990 0.7865 0.0458 100 13 min 4-j 22 sec .0953 0.7869 0.0,425 0-w, >k. ,- s. t x 7 jl i:,.. 25:-1. Elongation = (Lef t Ind - Lef t Ind(base line)) + (Right Ind - Right Ind (base h. .. g, ne IMd2. AElongation 'e(Ldf t Ind - Lef t Ind(t=0)) + (Right Ind - Right' Ind(t=0)) ~r %a p.pp;_ $~ 3. Temperature shall be conti.nuously monitored by strip chart recorder. ,s 4 -. w e

~ 0.25-IN. DIA TVC 210 BD TENDON MIRE

~

Page-6 Sample: Botton-No. ~ Sample loaded uithin 5-nin period Elepsed 1 2 Date Tina Tine 'Lef t Ind Right Ind Elongation AElongation Load _ Tem 11:30 3-8 0 0.7788 0.5611 0.2965 0 8265 68.5 an 1 min 0.7787 0.5610 0-2963 -0.0002 8239 ~ 2 min 0.5609 0.2962 -0.0003 82 5 3 min V-Y Y-V 8220 a ~ 4 min 0.7786 0.560S 0.2960 -0.0005 8215 ~ ~ 5 nin 8211 6 nin 8207 ~ 7 nin 8202 S 8 min 8200 ~5 9 min. 8196 2~ 11:40 ~ 2 an ' 10 min 8193 i: 3. ";'f> W. '~7~ 11 nin 8188 -n w-t'Qi-12 nin 8186 U. l .x _. 13 nin 8183 '[ 14 nin 8181 15 nih 8180 20 min V V V' 81i3' 7 ~';: 25 min 0.5607 0.2959 -0.0006 8166

a:

7~ 12:00' E. 30 nin 8161 p.a

W, m.

-Mi% 35 min 8154 Y.: 12:10 pm 40 nin T/ V Y V 814S hj; A ~.. u.

• 1. Elongntion d -(Lef t Ind ;- Lef t Ind(base la.na)) + (Right -Ind'- 'Right' Ind (.0.593b

~ 0.4504 oase ,2...m. (j. ~6.lohgation = (Lef t Ind - Lef t Ind(t=0)) + (Right Ind - Right Ind(t=0)) ~ ~ y;:4~.n .t. ~-

O.25-IN. DIA TT!C 210 ED TENDON UIRE ' ~ ~ Page 7 *- ~ Sample: Bo tton-F Elapsed 1 2 Date Time Time Left Ind RI.ght Ind Elongation

f. Elongation Load Tc 12:15' 3-8 pm 45 min 0.7786

~0.5607 0.2959 -0.0006 8144 8143 50 min 55 min 8140 1 h-8137 1.25 h 8131 1.50 8126 1.75 8122 1:30 '8117 pm 2.00 ~

• 2.25 8114 2.50 8109 2.75 8106 3h 8103 3:30 8090 pn 4

7:30 3-9 am 20 8020 ' ~ ~ 21 8016 8014 22 10:30 am 23 8014 l 24 8011 25 8010 sY l 7-26 8003 l . g *~ 2:30 jN( pSt' 27 5/ Y Y ^ V 8006 n- 'MN 1. Elongation 2(Lc'f t' Ind.- Lef t Ind(base la..ne)) + (Right Ind - Right Ind (base .a e .x.. w.

x.u.

x g W. nd(t=0)) [ {p ' [ 2. IElongation = (Lef t Ind - Lef t Ind(t=0)) f (

13. Tc.$p'erature shall be continuously monitored by strip chart recorder.'

~

STRESS RELAXATION TESTS 0.25-IN.-DIA FUC 210 BD' TENDON UIRE' ~ ~~' Page*_8, _ ~ Sample; Bottom No. l i Elapsed 'l 1 2 Date-Time Time Lef t Ind Right Ind Elongation 6 Elongation Load Temp; 3:30 3-9 pm 28 h 0.7787 0.5607 0.2960

.0.0005 8004*

7:30 3-10 cm 44 7984 3:30 pm 52 7975

• 11:00

'3-11 am 71.5 7960 3:10 pm 76.2 7957 7:30 3-12 am 92 7948 3:30 pm 100 h[ Y Y 7940 7:30 3-15 am 164-0.7788 0.2961 -0.0004 - 7908 7:30 f 3-16 am 188 7899 M 3-17 am 212 V Y Y l 591 7:30 ' 7

• ~ ~

/:30 . -d., 3-19 am .260 0.7789 0.2962 -0.0003 7874 $5 7:30 ' 332 hii 3-22 am 7852 b 7:30 '3-24 am 380 7839 e,..... 7:30 gg s g f V. .V ~ Y 7828 ,un., _ 3-26 am 428 e 7:30 E' 3-29 am 500 0.7790 0."2963 -0.0002 7812 5E 7:30 l 5 3-31 am 548 7805 7:30 ,1 4-2 cm 596 7797 i 7:30 D?, ~ 4-5 am. 668 7784 7:30 l d%k 4-7 am 716 7777 ti. 7:30 7]I 4-9 am' 764 7772 j:30 [( 4-12 am 836 h/- \\/ S( V-7763 39. .wgr ,.M.%1. Elongation = (Lef t Ind - Lef t Ind(base line)) + (Right Ind -- Right Ind (base 11: 4 .,y., tEl ngation = (Lef t Ind - Lef t Ind(t=0)) + (Right Ind~ - Rig t Ind(tU")) )M3. Temferature shall be~' continuously nonitored by strip chart recorder. d?- ~. - -, ~ - - - -

. STRESS RELAXATION TESTS 0.25-IN.-DIA FWC 210 BD TENDON UIRE Page 9 Sample: Bottom.No.

• Elapsed 1

2 I Date Tihe Time Left Ind Right Ind Elongation 12 Elongation Load Temp 7:30 4-14 am 884 0.7791

• 0.5607 0.2964

-0.0001 7757 - 7:30 '4-16 am 932 7751 3:30 4-19 am 1000 7741 7:30 y 4-26 am 1172 l Y ~ Y-7722 7:30 5-3 am 1340 0.7792 0.2965 D.0000 7708 7:30 5-10 am 1508 Y Y Y 7692 8:30 5-10 am 1509 0.77'0 0.2953 0.0012 7659 8 7:30 5-17 am 1676 0.7781 Q.2954 0.0011 7647 5-24 am 1844 T jf Yl 7:30 J, 7633 3:30 5-28 pm 1948 0.77_82 0.2955 0.0010 7626 Yl '\\ Y k 7:30 r 7621 6-1 am 2036 10:30 '2039 0.7798 0.'5606 0.2970 Restressed 8248 6-1 am 7:30 6 -4 am 2108 8186 ^' 7:30 Y Y Y 8164 F 6-8 am 2204 7:30 Y 0.5605 0.2969 -0.0001 8144 '~ 6-11 am 2276 7:30 6-15 nm 2372 0.7799 0.2970 0.0000 8126 7:30 6-18 am 2444 8110 7:30 6-22 am 2540 8097 7:30 6-25 am 2612 8084 F 7:30 6-29 am 2708 8076 .c 7:30 I 7-2 am 2780 Y Y V V-8065 .w # .~ w.

1. Elongation = (Lef t Ind - Lef t Ind 3, g)) + (Right Ind - Right Ind

/Elobgation (Lef t Ind - Lef t Ind(t=0)) g t Ind - ig t Ind(t=0)) 2. w g" '3. Temp'erature shall be conti.nuously monitored by strip chart recorder. s' -~ ~

BELLEFONTE HUCLEA_R, PLAfiT ' STRESS RELAXATION TESTS 0.25-IN.-DIA FUC 210 BD TENDON 11 IRE Page 10 Sample:' Bottom No. 2 Elapsed 1 2 3 Dste Time Time Left Ind Right Ind Elongation AElongation Load Temp 7:30 7-6 am 2876 0.7800 0.5605 0.2771 +0.0001 8053- /.: 30 7-9 . r am 2948 8045 - ,4339 7-12 am 3020 8037-7k3 .3044h 'Y. 0-[ "- ~5 8034' '-7-- /:~ r ~ ". ~ UNLCADING DATA 0 min O sec-0.7800 0.5605 6.2771 8034 0 min 45 sec 0.7787 0.5608 0.~2961 7980 2 min 14 sec 0.7463 0.5605 0.2634 7001 3 min ~ 34 sec 0.7133 0.5602~ 'O.2301 5983

5. min 20'sec 0.6860 0.5597 0'.2023 5000

~ Y 6 min E 58 sec 0.'6527 0.5595 'O.1688 3390 ~ +- ~ ~ 9 min 00 see 0.6193 0.5597 0.1356 3001 10 min i 27 see 0.5857' O.5596 0.1,019 1991 m. 11 min 46 sec 0.5511 0.5598 0.0675 984 12 min 39 see 0.5174 0.5618 0.0358 99.6 - i 14 min 06 sec 0.5155 0.5626 0.0347 0 r. e .. r. Q y ~ FiM. M71.' Elongation = (Lef t Ind - Lef t Ind(base la..na)) + (Right Ind .Right Ind (base 11ne' -' ^ - y _ ~:/ Elongation 'a- (Lef t Ind - Lcf t Ind(t=0)) 4- (Right Ind -- Right Ind(t=0)). 2 4C 2. ~ m

.m.u.

m.,,o,_ M6. Temperature shall be conti.nuously monitored by strip chart recorder. ~ '

' Atttchment 3 ADDITIONAL INFORMATION AND DATA Original Stress: (1) 168,038 psi; (2) 168,395 psi ' Original Length:- 48 in. Strain Required: (1) 0.0060125 in./in. ; (2) 0.0061770 in./in. Test Temperature 68.5 F Hours at Temperature 24 h min before stressing Variation along gauge length: None Max swing due to cycling; 1.5 F peak to peak Longtime Drife. +1 F Frequency of readings: Continuous strip chart recorder Change in Calibration of Thermocouples: 0.25 F Atmosphere Surrounding Test Specimens: Constant temperature, 25 to 45% humidity Final. Length: Loaded: (1) 48.3091; (2) 48.2771 . Unloaded: (1) 48.0425 (2) 48.0347 4 -4 Permanent Strain: (1) 8.854 x 10 in./in.; u) 7.229 x 10 in./in. 7> Final Stress: (1) 163,250 psi; (2) 163,698 psi i Gauge Length: 48 in. Cross Section Diameter: 0.250 in. Buttonhead Size: 3/8 in. diameter .. h u +-g.- 1 .h&,. <~; 3;_- ~~ ~ g# - ..4.._2 y

~ .-..v.,...,, *. TEST EQUIPMENT _ Calibration ' Description Tag or Serial Number Date Due Date Multifunction meter 1222A001'37 12-14-81 6-14-82 Tran'smation 462316 9 30 9-30.-82.' Dial indic'ators" .ME/EX-3 3-1-82 3-1-83 HE/EX-4.. $ 1-82 3-1-83 . ME/EX.5' 3-1-82 ~

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3-1-83' .. r. s. ~ . O. J:ME/EX-6 3-1-8.: 3-1-85 ,. u.-....- y. ' 'CA/.IR-l 1-2'0-82 7'-20-82." Y Recorder.'!.#'bD- '.,. ~ ....s. .r ~ 2-23-82 8-23 Load. ce.ll.(50/.k) . L 's ?.. (special cal) '~ Load' cell,.(100 k) 2-23-82 8-23-82 (special cal)' s. Thermocouples

• CA/TC-60 1-2 -82 f-20-82 j..~ ',;.

. CA/TC-61 J

1-20-82 7-20-82.

CA/TC-62 1-20-82 7-20-82 2 "2235096 2-8-82 Multifunct'io'n. ine~ter 8-8-82 'l l l .s v n... ~. -y~ g > < ~ me ~ i.. m l +., + ~. N *If any }.iece of ' test equipment vill be dua for calibration before the test is .".;, ' ' comp ete, provisions must be made for that calibration. l - - * * ~ - +r ~ ~, - ~. . A ye,.,.,.,. r g a,, ~. _ * .w wyq, - - t,., = r m. v - w3 '-

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