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Compression Testing of Alumina Fiber InsulationA series of tests were conducted to measure the response of alumina fiber insulation to compression loading. The alumina fiber insulation is a candidate gasket material for the Space Shuttle Government Furnished Equipment (GFE) Tile Overlay Repair. Tests were conducted at room temperature and 2300 F. The alumina fiber insulation is a fibrous insulation blanket which was supplied to Langley in two forms, a nominal 3 lb/ft3 version and a nominal 9 lb/ft3 version. The 3 lb/ft3 material was tested as sheets 0.15 and 0.25 inches thick and the 9 lb/ft3 material in sheets 1 inch thick. The material showed very non-linear compression behavior with the compressive resistance of the material increasing as the material was compressed. The 3 lb/ft3 0.15-inch thick material required 4.1 psi to reach the nominal installation thickness of 0.045 inches and retain a load of 2.1 lbs during unloading. Testing at 2300 F resulted in a stiffer more board-like material. The 3 lb/ft3 0.15-inch thick material retained 1 psi of compressive resistance after a 10 minute hold at 2300 F and 0.045 inches thickness.
Document ID
20060051708
Acquisition Source
Langley Research Center
Document Type
Technical Memorandum (TM)
Authors
Vaughn, Wallace L.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 7, 2013
Publication Date
October 1, 2006
Subject Category
Nonmetallic Materials
Report/Patent Number
NASA/TM-2006-214514
L-19287
Report Number: NASA/TM-2006-214514
Report Number: L-19287
Funding Number(s)
WBS: WBS 816-06-03-03-07
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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