ML20148H927
| ML20148H927 | |
| Person / Time | |
|---|---|
| Site: | 07109193 |
| Issue date: | 03/07/1988 |
| From: | Ely P NUCLEAR ENERGY SERVICES, INC. |
| To: | Odegarden R NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| 29125, NUDOCS 8803300119 | |
| Download: ML20148H927 (4) | |
Text
/-87 RETURN.TO 396-S8-c7gjpg NUCLEAR ENERGY SERVICES m
SHELTER ROCK ROAD, DANBURY, CT 06810-7095 TELEPHONE C03) 796-5000 g
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March 7,1988 Refer to: PS-107 Y
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Mr. Richard Odegarden Transportation Certification Branch 9
Division of Fuel Cycle and Material Safety
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s Nuclear Regulatory Commission
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Washington, DC 20535 s
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Subject:
Model NES-5 Package (Docket 71-9193
Dear Mr. Odegarden:
NES respectfully submits the pages 2-15 and 2-16 which have been changed to correct typographical errors. These pages replace the pages previously submitted on January 11, 1988 as revision 7 to C of C 9193 Safety Analysis Report. This was discussed with Dan Huang of your office previously.
Very truly yours, NUCLEA ENERGY SERVICES, INC.
A Paul Ely Project Engineer Plant Services PE:ma gie Encfosures g
cc: E. C. Doubleday 4,
P. Rudolph 2
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The maximum inad was found to be in Element No. 29 in the outer shell just below the reinforcing ring. The maximum stress intensity is 19,006 psi.
Considering that ten times the weight of the cask was assumed in the analysis, the factor of safety is very large.
2.4.3.3 Lid Lif ting Lugs The maximum lif ting load exerted on the lid lif ting lugs is based on:
W 11,175 (3 times Wt. of Lid)
L
=
11,175 + 4 (the weight carried by each of the 4 lugs)
P
=
2,794 lbs
=
1.
Tension in each lif ting lug:
a E
t 7A
^
.. (0.75)2 = 0.4418 in2 4
2'79#
- 3'162 psi a
t 2x0.4418 Safety Factor = 30,000 = 9,49
.$,16 z 2.
Welding around lif ting lug:
2 A
nDteff = n (0.75) 0.707x2xK = 0.8329 in eft =
U P
2794
= 1,677.3 psi
=
=
s 7K 2x0.8329 eff Saf ety Factor = 20200
= 12.0 1,677.3 1
2-15
3.
3/4" - 10 UNC Boit:
2 Stress Area A = 0.334 in o
P 2794
- 4,182.6 psi s~
2A 2x0.334 Safety Factor = 30,000, 7,;7 4183.6 4.
6 3/4" x 2" x 3/4" Plate:
Max. Moment = 2,794 (5.125-2.625 ) = 1746 lbs-in 2
2 Section Modulus = (2-0.875) s
/
1746 Max. Bending Stress -
- 16,552.1 psi 0.1055 Safety Factor = 30,000 = 1.8 16,552.1 2.4.4 Tie-Downs The tie-down systern for transporting the package is designed to the load conditions defined in 10 CFR 71.45. This load condition is defined as follows: "... The system shall be capable of withstanding, without generating stress in any material of the package in excess of its yield strength, a static force applied to the center of gravity of the package having a vertical component of two times the weight of the package l
and its contents, a horizontal component along the direction in which the vehicle travels of 10 times the weight of the package with its contents and a horizontal component in the transverse direction of 5 times the weight of the package with its contents."
l The Model NES-5 Package has been provided with a tie-down frame which is integral with the top linpact limiter (overpack). The tie-down lugs extend through pockets in the upper impact, limiter which serve to surround each lug with an air space to accommodate f ailure or distortion of the lug.
The impact limiters surround the package ends and are attached together by six (6) 1-3/8" diameter ratchet binders.
These ratchet binders primarily carry inertial loads only because both end impact loads and tie-dowt loads are reacted by direct compression of the impact limiter and the integral tie-down frame upon the body of the package.
2-16
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