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A method for determining structural properties of RCC thermal protection materialA method was developed for evaluation and prediction of effects of oxidation of the graphitic substrate on structural properties of Reinforced Carbon-Carbon (RCC) thermal protection material. Test specimens of RCC material were exposed to successive periods of convective heating in a plasma-jet facility to simulate the chemical reactions of Shuttle atmospheric entry. After each period of testing, the test specimen mass loss and performance in a nondestructive flexure test were determined. A computational model of the RCC specimen was developed for the NASA Structural Analysis (NASTRAN) program and validated by comparison of calculated and experimental results of flexure tests. The elastic moduli and ultimate loads in tension and compression were then computed for various levels of substrate oxidation.
Document ID
19780052088
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wakefield, R. M. (NASA Ames Research Center Moffett Field, CA, United States)
Fowler, K. R. (NASA Ames Research Center Moffett Field, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
May 1, 1978
Subject Category
Composite Materials
Report/Patent Number
AIAA PAPER 78-869
Meeting Information
Meeting: Thermophysics and Heat Transfer Conference
Location: Palo Alto, CA
Start Date: May 24, 1978
End Date: May 26, 1978
Sponsors: American Society of Mechanical Engineers, American Institute of Aeronautics and Astronautics
Accession Number
78A35997
Distribution Limits
Public
Copyright
Other

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