Cryogenic explosion environment modeling and testing of space shuttle and light-weight radioisotope heater unit interactions [electronic resource].

Published:: Miamisburg, Ohio : Monsanto Research Corporation, 1985.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: Pages: 27 : digital, PDF file
Additional Creators:: Monsanto Research Corporation and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

In order to assess the risk to the world's populace in the event of a Space Shuttle accident when radioisotope-containing heat sources are on board, testing of that system must be performed to determine release point, environments required, and the size distribution of the released fuel. To evaluate the performance of the Light-Weight Radioisotope Heater Unit (LWRHU) (101 of these 1-W items are placed on the Galileo spacecraft which will be launched from the Space Shuttle), some high-velocity impact and flyer plate testing was carried out. The results showed that a bare urania-fueled LWRHU clad (approximately 1-mm thick platinum-30 wt % rhodium alloy) will withstand 1100 m/s flyer plate (3.5-mm thick aluminum) impacts and 330 m/s impacts upon the Space Shuttle floor (approximately 12-mm thick aluminum) without rupture or fuel release. Velocities in the order of 600 m/s on a steel surface will cause clad failure with fuel release. The fuel breakup patterns were characterized as to quantity in a specific size range. These data were employed in the formal Safety Analysis Report for the LWRHU to support the planned 1986 Galileo launch. 19 figs.

Report Numbers:

E 1.99:mlm-3303
mlm-3303

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Note:

Published through SciTech Connect.
10/01/1985.
"mlm-3303"
"DE86005901"
Johnson, E.W.

Funding Information:

AC04-76DP00053

View MARC record | catkey: 14117744