Definition of interplanetary dust particle hypervelocity impact protection levels provided by spacecraft multilayer insulation/thermal blankets is provided for the first time. Development of a new data-anchored shock-hydrocode-computations-derived ballistic limit equation in the 7 150 km / s hypervelocity impact range for representative two-wall Whipple shields, in which spacecraft multilayer insulation is the bumper material impacted by fused silica dust, is presented. A baseline configuration was adopted for analysis: 0.0176-cm-thick Kapton bumper (monolithic and layered), 2.54 cm standoff, and 0.0762-cm-thick titanium alloy Ti-6Al-4V rear wall. Significant efforts made to verify and validate the computational methodology with hypervelocity impact test data are also described. With a solid Kapton bumper, the critical particle diameter for causing incipient spall in the rear wall, which is chosen to be the failure criterion, is found to be in the 650 1100 μ m range, with the largest and the smallest sizes corresponding to 30 and 150 km / s hypervelocity impact, respectively. When the bumper is layered in a manner similar to that found in actual blankets ( 140 μ m spacing), the critical particle diameter is indicated to be in the 450 600 μ m range.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Interplanetary Dust Particle Shielding Capability of Spacecraft Multilayer Insulation


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2015-01-05


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Interplanetary dust particle shielding capability of spacecraft multi-layer insulation

    Iyer, Kaushik A. / Mehoke, Douglas S. / Batra, Romesh C. | IEEE | 2014


    Interplanetary dust particle shielding capability of blanketed spacecraft honeycomb structure

    Iyer, Kaushik A. / Mehoke, Douglas S. / Batra, Romesh C. | IEEE | 2017


    INTERPLANETARY SPACECRAFT

    DUBENKO VLADIMIR ALIMOVICH | Europäisches Patentamt | 2017

    Freier Zugriff

    INTERPLANETARY SPACECRAFT

    WHITE JR WAYNE NEVILLE | Europäisches Patentamt | 2017

    Freier Zugriff