NASA initiated an effort to determine if the aging of Kevlar 49/Epoxy composite overwrapped pressure vessels (COPV) affected their performance. This study briefly reviews the history and certification of composite pressure vessels employed on NASA Orbiters. Tests to evaluate overwrap tensile strength changes compared 30 year old samples from Orbiter vessels to new Kevlar/Epoxy pressure vessel materials. Other tests include transverse compression and thermal analyses (glass transition and moduli). Results from these tests do not indicate a noticeable effect due to aging of the overwrap materials.


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    Titel :

    Kevlar 49/Epoxy COPV Aging Evaluation


    Beteiligte:

    Kongress:

    Aging Aircraft 2008 ; 2008 ; Phoenix, AZ, United States


    Erscheinungsdatum :

    2008-04-21


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


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    Composite Overwrapped Pressure Vessels (COPV)

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    Development of COPV-Related Standards

    Chang, James | AIAA | 2007