Long duration super-pressure balloon design and manufacturing is a great challenge for the Centre National d'Etudes Spatiales in scientific ballooning. They are made of 50 μm thick polymer films polyethylene terephtalate/polyamide/polyethylene terephtalate which are joined with 23 μm thick adhesive polyethylene terephtalate bands. To date, during flight missions, a major problem appears: some balloons explode prematurely. This is why this study deals with the mechanical behaviour of the stratospheric pressurized balloons and particularly with the assembly of the constitutive films material. First, a nanoindentation test campaign makes it possible to identify the elastic properties of the materials at two different temperatures. Then, a nominal assembly is simulated in two stages: two-dimensional and three-dimensional. Finally, the factorial design method combined with finite-element simulations was used to study the influence of the various conception parameters on the mechanical behaviour of the assembly.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Adhesive junction modelling of a super-pressure balloon


    Contributors:
    Selva, P (author) / Dalverny, O (author) / Mistou, S (author) / Alexis, J (author) / Karama, M (author) / Deramecourt, A (author)


    Publication date :

    2007-05-01


    Size :

    7 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    SUPER-PRESSURE BALLOON

    LONGMIER BENJAMIN / GUTHERY JOHN MARK / SHEEHAN JOHN PATRICK | European Patent Office | 2016

    Free access

    NASA Super Pressure Balloon

    D. Fairbrother | NTIS | 2017


    NASA Super Pressure Balloon

    Fairbrother, Debbie | NTRS | 2017


    NASA Super Pressure Balloon

    Fairbrother, Debbie | NTRS | 2016