ML20028D360
| ML20028D360 | |
| Person / Time | |
|---|---|
| Site: | 07106679 |
| Issue date: | 06/15/1972 |
| From: | Hansen L PROTECTIVE PACKAGING, INC. |
| To: | Macdonald C US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20028D356 | List: |
| References | |
| 21732, NUDOCS 8301190029 | |
| Download: ML20028D360 (3) | |
Text
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' ' LARRY J. H Af 4SEN Mcs PasticsNf. cNosNEER6NG & PeoDUCTsom f
June 15, 1972 f
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Mr. Charles E. MacDonald, Chief Transportation Branch Directorate of Licensing U.S.A.E.C.
Wa'shington, D. C. 20545
Subject:
Half Supertiger Safety Analysis
Dear Chuck:
Please find enclosed a modification to the Half Supertiger Safety Anti-tsis.
I believe it should be self explanatory but please call if any questions shoul i arise. Detail drawing will follow sh.ortiv.
Thanks again.
-Yours tr ly,
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L. J. Hansen LJH:jvt enclosure t
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" 1. 0 BREAl<AWAY PLATES For conservatism two breakaway plates have been added to the end of the Half Supertige r.
They are identical to those used on ti c sides and I
have been shown capabic of reacting the full puncture leads of the 45,000 pound Supertiger (Reference PPI Dwg. 3'2106 Rev. F). This arrangement has been fully tested on the full scale Supertiger as well as a 38,000 pound Paducah Tiger. Results are documented in the Supertiger Report C2378 for DOT 6400
- 2. 0 INCREASE LlD ATTACHMENT BOLTS FROM 10 to 12 The lid of the full sized Supertiger is secured by means of 10 - 1"
' diameter bolts. This provides a margin of safety of approximately 10%.
(Reference Supertiger Report)
For conservatism the number of bolts has been increased to 12 now providing a more comfortable margin of safety of +32%.
- 3. 0 REDUCTION IN OVERALL LENGTH c
Since breakaway plates are being used on the Half Supertiger ends, the excess foam thickness is no longer required. From full scale testing
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it was shown that the maximum deformation was less than -14 inches.
Ideally, this would represent the minimum required thickness. For conservatism it is felt that the minimum thickness should be 18 inches on the lid end and 17 inches on the non-lid end. It should be noted that the energy absorption capability is a function of the volume of compressed foam. Since the volume of the pyramid varies as a function of the depth squared the energy available also varies as the square of the depth.
2 18 M.S.= (g ) -1 M. S. = + 65 at lid 2
17 M. S. = ( g) -1 M. S. = +. 47 at bottom The refo re, the half Supertiger will possess more energy absorption than required thereby assuring that the internal geometry will be maintained.
PROTECTIVE PACKAGING, INC.
)
,It thould be noted that for Mode "B" the inter contai. ment vessel is not r
the standard 1/8 inch inter shell of the full sized Supertiger but a 3" thick lead and steel cask (Reference PPI dwg. 32268). This quite obviously possesses more integrity than the standard internal shell. Secondly contained within the cask is an 1/8 inch mild steel AN L Bin with bolted lid. It meets all Type "A" requirements.
This bin provides all containment vessel features for sole use within the Poly Panther Overpack DOT 6272 Thirdly, for use at Argonne Lab nearly all materials are placed within drums or crates prior to placement in the bin.
In summary it provides containment of the material in as many as four consecutive ways:
Material is prepackaged in steel drums or crates e
Scaled in an all steel Type "A" AN L waste bin e
Bins are placed in a 3 inch thick steel and Icad cask e
The cask is contained with the steel and foam Supertiger.
e CONCLUSION The Half Supertiger provides a package fully compatibic with all requirements of Type "B" and Large Source shipping containers, t
PROTECTIVE PACKAGING, INC.
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