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Proceedings Paper

Thermostructural Evaluation Of Spinel Infrared (IR) Domes
Author(s): Forrest A. Strobel
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Paper Abstract

Aerothermal testing of two full scale magnesium aluminate spinel IR domes in a hot gas facility has been conducted at the Naval Weapons Center (NWC). The objective of the testing was to provide information on the stress levels at which the spinel domes would fracture. Initial tests showed the spinel domes would survive heating conditions which had caused thermal stress fracture in thirty previously tested magnesium fluoride domes. Test conditions were typical of the aeroheating experienced following a supersonic missile launch. In subsequent testing, spinel dome fracture was accomplished by increasing the severity of the heating conditions. Through the use of computer modeling, temperature and stress levels in the domes were calculated for both heating conditions. Predicted fracture stress for the dome was found to be very sensitive to the property data which was used in the computer models.

Paper Details

Date Published: 26 February 1982
PDF: 12 pages
Proc. SPIE 0297, Emerging Optical Materials, (26 February 1982); doi: 10.1117/12.932494
Show Author Affiliations
Forrest A. Strobel, Naval Weapons Center (United States)


Published in SPIE Proceedings Vol. 0297:
Emerging Optical Materials
Solomon Musikant, Editor(s)

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