ML20039F108

Ack Receipt of 810616 Application as Amended 811127, Requesting Approval of Model HN-100,Series 3,packaging. Review Indicates Addl Info Required Re Structural Calculations & Containment

ML20039F108
Person / Time
Site:	07109151
Issue date:	12/21/1981
From:	Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To:	Mallory C HITTMAN NUCLEAR & DEVELOPMENT CORP. (SUBS. OF HITTMAN
References
NUDOCS 8201110869
Download: ML20039F108 (2)

Text

_

~

DEC 211981 dott41 4U

[tYbcMtct FCTC: RHO 35 L - 5 5 71-9151 OyfLilF-W L

v t

N flc,..

ATTH: Mr. Charles W. Mallory

-k gOgg788 C

Hittman Nuclear & Development Corp.

"IYQ 4

e 9190 Red Branch Road 53 Columbia, MD 21045 j.g.,

4

-y 7

Gentlemen b

e N

e This refers to your application dated June 16, 1981, as amended November 27, 1981, requesting approval of the Model No. HN-100. Series 3 paci: aging.

In connection with our review, we need the infomation identified in the enclosure to this letter.

Please advise us within thirty (30) days from the date of this letter when this infomation will be provided. The additional infomation requested by this letter should be submitted in the fom of revised pages.

If you have any questions regarding this matter, we would be pleased to meet with you and your staff.

Sincerely, Originnl T-CM u D CIUyn E. Lt.CDonLD.

i Charles E. MacDonald, Chief Transportation Certification Branch Division of Fuel Cycle and Material Safety,tMSS

Enclosure:

As stated Distribution: w/ encl RH0degaarden (2)

HWLee d

Docket File NRC POR IEHQ(3)

NMSS R/F FCTC R/F B201110969 811221 PDR ADOCK 071091S1 C

PDR nW

.)

v

=>..... ECT.C.....

..F.GTG t

..... F.C

' saS*d. 9.a,arden:a,lp,,HWLee.,

,,.3,CEMa,, p,a] d,

' " >...12/.t /81.....12/.l.if/ai...

..12/./.[/81....,

1

' une ronu ais no-soi uncu c24o OFFICIAL RECORD _ COPY _

i

Hittman Nuclear & Devalopment Corporation i

HN-100 Series 3 Package Docket No. 71-9151 DEC 211931 Enc 1 to ltr dtd:

STRUCTURAL

~

1.

Secticn 3.1.4.3b When computing the moment forces on welds, all the tG~down lug welds are assumed to be in tension. This is not a

~

valid assumption. Since no other forces are applied on the lug, equalibrium cannot be achieved. The calculations should be revised considering the above.

i 2.

Section 3.1.4 Summary The excessive load requirement of 10 CFR 571.31(d)(3) is not satisfied by non-structural members (shackles) attached to the packaging. The lifting and tie-down devices that are a structural part of the package must be evaluated for failum under excessive loads.

3.

Section 3.2.6.2 The effects of bottom corner drop on balance of cask are not adequately addressed. Provide free body diagrams of 4

the cask and the bottom plate showing all the forces acting including the content and reaction force due to impact. Based on free body diagrams, show that the stress in the cask shell and the welds joining the cask and the bottom plate are within allowables.

4.

Section 3.2.6.3 and Section 3.2.6.4 It appears that only the vertical component of the impinet force has been considered in the analysis. Horizontal component of the impact force should also be addressed. Also, the reaction force at the outer edge of the cask should be evaluated and the resulting stresses in the cask shell shown to be within allowables.

CONTAINMENT Suania:ize and use the pertinent results of analysis or tests performed that effect the seal area to demonstrate containment under nonnal conditions of transport.

DRAWINGS Provide a comolete description of the packaging seals and contact area.

4 Ct

• "'cc >

OFFICIAL RECORD COPY J

u.c o-m oo..o nac" "

-