Use of graphite epoxy composites in the Solar-A Soft X-Ray Telescope

Details Use of graphite epoxy composites in the Solar-A Soft X-Ray Telescope Use of graphite epoxy composites in the Solar-A Soft X-Ray Telescope

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1303..406j&link_type=abstract

IN: Advances in optical structure systems; Proceedings of the Meeting, Orlando, FL, Apr. 16-19, 1990 (A91-36651 15-74). Bellingh

Computer Science

Graphite-Epoxy Composites, Laminates, Mechanical Properties, Spacecraft Construction Materials, X Ray Telescopes, Finite Element Method, Microcracks, Moisture Resistance, Systems Integration, Thermal Expansion

Scientific paper

This paper describes the use of composite materials in the Soft X-Ray Telescope (SXT). One of the primary structural members of the telescope is a graphite epoxy metering tube. The metering tube maintains the structural stability of the telescope during launch as well as the focal length through various environmental conditions. The graphite epoxy metering tube is designed to have a negative coefficient of thermal expansion to compensate for the positive expansion of titanium structural supports. The focus is maintained to + or - 0.001 inch by matching the CTE of the composite tube to the remaining structural elements.

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