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Hypervelocity impact testing of advanced materials and structures for micrometeoroid and orbital debris shielding

conference contribution
posted on 2011-12-01, 00:00 authored by Shannon RyanShannon Ryan, E L Christiansen
A series of 66 hypervelocity impact experiments have been performed on potential micrometeoroid and orbital debris (MMOD) shield configurations incorporating various materials (aluminium, titanium, copper, stainless steel, nickel, nickel/chromium, reticulated vitreous carbon, silver, ceramic, aramid, ceramic glass, and carbon fibre) and structures (monolithic plates, open-cell foam, flexible fabrics, rigid meshes). The performance of the single, double, and triple-bumper configurations was assessed based on target damage and their respective weight, with the top performing candidate found to be a double-bumper configuration with a 0.25mm thick A13003 outer bumper, 6.35mm thick 40 PPI aluminium foam inner bumper, and 1.016 mm thick A12024-T3 rear wall (equal spacing between bumpers and rear wall). In general, double-bumper candidates with aluminium plate outer bumpers and foam inner bumpers were consistently found to be amongst the top performers. Potential weight savings of at least 47% over conventional all-aluminium Whipple shields are possible by utilizing the investigated materials and structures. Copyright ©2011 by the International Astronautical Federation. All rights reserved.

History

Volume

3

Pagination

1970 - 1985

ISBN-13

9781618398055

Publication classification

E1.1 Full written paper - refereed

Title of proceedings

62nd International Astronautical Congress 2011, IAC 2011

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