ML19343A178
| ML19343A178 | |
| Person / Time | |
|---|---|
| Site: | Mcguire, Sequoyah, McGuire  |
| Issue date: | 09/10/1980 |
| From: | Griemann L AMES LABORATORY, ENERGY & MINERAL RESOURCES RESEARCH |
| To: | Schauer F Office of Nuclear Reactor Regulation |
| References | |
| CON-FIN-A-4141 NUDOCS 8009160342 | |
| Download: ML19343A178 (2) | |
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lowa State University Ames, Iowa 50011 HIIIeS lahm ator Energy & Mineral ResourcesyResearch Institure September 10, 1980 Dr. F. P. Schauer, Chief Structural Engineering Branch Division of Systems Safety Office of Nuclear Reactor Reguir. tion Nuclear Regulatory Commission Washington, DC 20555
SUBJECT:
AMES LABORATORY TECHNICAL ASSISTANCE TO THE DIVISION OF SYSTEM SAFETY, NUCLEAR REACTOR REGULATION
" REVIEW 0F NUCLEAR PLANTS STRUCTURAL DESIGN" (FIN NO. A-4141).
BIMONTHLY REPORT FOR 7/1/80 THROUGH 8/31/80
Dear Dr. Schauer:
The following report summarizes the current status of the subject project relating to a best estimate and uncertainty assessment of the containment ultimate strength at the Sequoyah and McGuire nuclear power plants.
Milestone Description Status 1
Define loading condition Comolete 2
Isolate failure mode Complete 3
Identify parameters Complete 4&7 Identify parameters Complete 5&8 Analyze failure modes In-orogress 6a9 Multiple failure modes In-progress c
10 Final Report In-progress Funds Excended The amount of funds expended in this reporting period is $20,844.52, and the cumulative to date is $62,775.91.
Proaress to Date and Future Plans During this reporting period the finite element computer program ANSYS has been used to analyze the strength of the Sequoyah containment vessel.
The McGuire vessel analysis is almost ready to run.
The prccess of learning to apply ANSYS tb the penetration problem took longer than expected.
In this regard, it now appears that only one experimental model and only one or two actual penetrations will be analyzed.
If it becomes necessary, additional penetrations will be analyzed next year.
KOO3 b
IO 80091603N uneer conir.ci viin 18. unic.o si.i.s o..riment of Ener9Y
Dr. F. P. Schauer September 10, 1980 During the past period, an approximate dynamic analysis was requested and completed (July 18, 1980). Also, I traveled to NRC, Bethesda, to assist the NRC staff in the preparation of documentation for the strength of the Sequoyah containment.
Sincerely,
/
/
r Nb*w 5 '; 4J /
Lowell Greimann Project Engineer cc: Director, Division of Systems Safety Attention:
B. L. Grenier Harold Polk Program Manager Delwyn D. Bluhm, Head Project Engineering Burton Gleason, Head Information Office e
t h.
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