Nondestructive Evaluations of Composite Heatshield Materials before and after an Underground Nuclear Exposure
Final rept. May 1972-Nov 1973
SOUTHERN RESEARCH INST BIRMINGHAM AL
Pagination or Media Count:
Nondestructive evaluations were performed on various composite heatshield materials before and after underground nuclear exposure. Quality control nondestructive evaluations were used to select representative rings from a larger sample. Additional nondestructive testing and nondestructive mechanical NDM evaluations were used to characterize the selected rings before and after exposure. Improved methods of characterizing rings after exposure were developed and will be implemented in Carbon-Carbon Design Program. The materials evaluated included an angled, tape-wrapped carbon-phenolic R6300 3D carbonquartz-phenolic 3DCQP 3D carbon-phenolic 3DCP 3D carbon-carbon 3DCC and felt carbon-carbon felt CC. All materials were evaluated before underground exposure. After exposure the R6300, 3DCC, and felt CC were evaluated. In the follow-on program the two CC materials will receive further evaluations.
- Laminates and Composite Materials