ML19209A344
| ML19209A344 | |
| Person / Time | |
|---|---|
| Site: | 07109097 |
| Issue date: | 09/10/1979 |
| From: | Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | CHEM-NUCLEAR SYSTEMS, INC. |
| References | |
| NUDOCS 7910030628 | |
| Download: ML19209A344 (2) | |
Text
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SEP 101979 FCTC:JEJ 71-9097 Chem-Nuclear Systems, Inc.
ATTN: Mr. Louis E. Reynolds P.O. Box 1866 Bellevue, WA 98009 Gentlemen:
This refers to your application dated August 2,1977, as amended, requesting approval to deliver the Model No. CNSI-14-195L packaging to a carrier for transport.
In connection with our review, we need the information identified in the enclosure to this letter.
Please advise us within thirty (30) days from the date of this letter when this information will be provided. The additional information requested by this letter should be submitted in the form of a consolidated safety analysis report including referenced information in other applications.
If you have any questions regarding this matter, will be pleased to meet with you and your staff.
Sincerely, k
T Charles E. MacDonald, Chief Transportation Certification Branch Division of Fuel Cycle and Material Safety
Enclosure:
As stated 1091 201 s
7910030 6 2 8' t
Chem-Nuclear Systems, Inc.
Model No. CNSI-14-195L Occket No. 71-9097 Encl to ltr dtd: SEP 101979 Revise the analysis for the free drop to include the following:
1.
Show that the stresses in the primary containment system under the end, side, or oblique impact loading do not exceed material static yield stress at elevated temperature by taking the following comments into consideration:
In the g-load analysis, the material strain rate effects on plastic yield or flow stress should be considered. The same also applies to the material strainhardening and compressive cross-sectional area increase effects if large strain is involved and multi-axial lead stress effects.
- Effects of multiple stress components on material yielding should be considered in the stress evaluation.
2.
Show that the integrity of the cask structure can be maintained under the impact loading at low temperature. Note that materials such as carbon steel become brittle at icw temperatures.
T 1091 202
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