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Effect of load eccentricity and substructure deformation on ultimate strength of shuttle orbiter thermal protection systemThe effect of load eccentricity and substructure deformation on the ultimate strength and stress displacement properties of the shuttle orbiter thermal protection system (TPS) was determined. The LI-900 Reusable Surface Insulation (RSI) tiles mounted on the .41 cm thick Strain Isolator Pad (SIP) were investigated. Substructure deformations reduce the ultimate strength of the SIP/tile TPS and increase the scatter in the ultimate strength data. Substructure deformations that occur unsymmetric to the tile can cause the tile to rotate when subjected to a uniform applied load. Load eccentricity reduces SIP/tile TPS ultimate strength and causes tile rotation.
Document ID
19810024959
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Sawyer, J. W. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 4, 2013
Publication Date
September 1, 1981
Subject Category
Structural Mechanics
Report/Patent Number
NASA-TM-83182
Report Number: NASA-TM-83182
Accession Number
81N33502
Funding Number(s)
PROJECT: RTOP 506-53-53-06
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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