Highlights ► Impact tests were performed on a self-healing ionomeric polymer. ► Self-healing was successful in the vast majority of samples. ► Damage extent on ionomers was lower than on aluminium bumpers. ► Total craters area on witness plates behind the targets was lower than on aluminium bumpers. ► Largest crater’s area on witness plates was higher than on aluminium bumpers. ► Momentum transferred to witness plates was lower than on aluminium bumpers.

    Abstract This paper discusses the impact behavior of a self-healing ionomeric polymer and compares its protection capability against space debris impacts to that of simple aluminium-alloy bumpers. To this end, 14 impact experiments on both ionomer and Al-7075-T6 thin plates with similar surface density were made with 1.5mm aluminium spheres at velocity between 1 and 4km/s. First, the perforation extent in both materials was evaluated vis-à-vis the prediction of well known hole-size equations; then, attention was given to the damage potential of the cloud of fragments ejected from the rear side of the target by analysing the craters pattern and the momentum transferred to witness plates mounted on a ballistic pendulum behind the bumpers. Self-healing was completely successful in all but one ionomer samples and the primary damage on ionomeric polymers was found to be significantly lower than that on aluminium. On the other hand, aluminium plates exhibited slightly better debris fragmentation abilities, even though the protecting performance of ionomers seemed to improve at increasing impact speed.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Comparison of self-healing ionomer to aluminium-alloy bumpers for protecting spacecraft equipment from space debris impacts


    Beteiligte:
    Francesconi, A. (Autor:in) / Giacomuzzo, C. (Autor:in) / Grande, A.M. (Autor:in) / Mudric, T. (Autor:in) / Zaccariotto, M. (Autor:in) / Etemadi, E. (Autor:in) / Di Landro, L. (Autor:in) / Galvanetto, U. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 51 , 5 ; 930-940


    Erscheinungsdatum :

    2012-10-12


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    APPARATUS FOR PROTECTING AUTOMOBILE BUMPERS

    FRITSCH REMI | Europäisches Patentamt | 2015

    Freier Zugriff

    Apparatus for protecting automobile bumpers

    FRITSCH REMI | Europäisches Patentamt | 2015

    Freier Zugriff


    Structeral performance of aluminium bumpers

    Sharp, M.L. / Jombock, J.R. / Schabel, B.S. | Tema Archiv | 1978