Physics
Scientific paper
Oct 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1303..477s&link_type=abstract
IN: Advances in optical structure systems; Proceedings of the Meeting, Orlando, FL, Apr. 16-19, 1990 (A91-36651 15-74). Bellingh
Physics
Graphite-Epoxy Composites, Low Weight, Mirrors, Radar Beams, Resonant Frequencies, Metal Foils, Nuclear Radiation, Sandwich Structures, Steering, X Ray Irradiation
Scientific paper
A conceptual design and manufacturing program for a lightweight graphite/epoxy steering mirror with a 0.5-2.0-m aperture for use at 10.6 micron is presented. An analysis is performed for the optimization of the mirror natural frequency as a function of component material, structural geometry, and physical dimensions. A 65-m-diameter eggcrate sandwich-core mirror constructed of graphite/epoxy composite material clad on all exposed surfaces with aluminum foil or tin/indium solder is manufactured, and it is indicated that this design can be scaled to larger diameters. Results of a trade study suggest that this type of mirror can be hardened against nuclear X-ray effects given the appropriate choice of cladding materials.
Forman Steven E.
Sultana John A.
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