The effects of manufacture flaws and repairs in high altitude scientific balloons was examined. A right circular cylinder was used to induce a biaxial tension-tension stress field in the polyethlene film used to manufacture these balloons. A preliminary investigation of the effect that cylinder geometry has on stress rate as a function of inflation rate was conducted. The ultimate goal was to rank, by order of degrading effects, the flaws and repairs commonly found in current high altitude balloons.


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    Title :

    Strengths of balloon films with flaws and repairs


    Contributors:

    Publication date :

    1989-08-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English







    Repairs

    Ruggins, W.G. | Engineering Index Backfile | 1927


    Repairs

    Smith, C. | Engineering Index Backfile | 1929