A spacecraft is exposed to the risk of collision with orbital debris or meteoroids through-out its orbital lifetime. Part of small debris is produced as ejecta upon impact of particles on spacecraft outer surfaces. In order to mitigate this growing population of orbital debris and obtain a better knowledge of secondary debris production, it is proposed in this document to perform standardized tests on the various materials used for external surfaces. The approach to assess the behaviour of materials under orbital debris or meteoroid impacts, uses an ejecta model under hypervelocity impact (HVI) to define simple parameters which are able to characterize ejecta production as total mass ejected, size partitioning, velocity, and direction. In order to get comparable results, well defined ground tests are proposed using readily available HVI ranges. Results of ejecta production have to be implemented in a database which will help in the choice of spacecraft use materials during the design phase, in order to fulfill debris mitigation and to determine the small debris production over the total spacecraft life-time.
Test procedures to evaluate spacecraft materials ejecta upon hypervelocity impact
Testdurchführung zur Auswertung des Materialabtrags von der Raumfahrzeugoberfläche bei einem Extremgeschwindigkeitsaufprall
2007
6 Seiten, 20 Quellen
Aufsatz (Zeitschrift)
Englisch
Test procedures to evaluate spacecraft materials ejecta upon hypervelocity impact
Online Contents | 2007
|Test procedures to evaluate spacecraft materials ejecta upon hypervelocity impact
SAGE Publications | 2007
|Normal and 45^o Hypervelocity Impact Tests to Evaluate Spacecraft Material Ejecta
British Library Conference Proceedings | 2013
|Experimental Study of Spacecraft Material Ejected upon Hypervelocity Impact
British Library Conference Proceedings | 2013
|Analysis of Regolith Simulant Ejecta Distributions from Normal Incident Hypervelocity Impact
British Library Conference Proceedings | 2009
|