The current design of the Ares I Upper Stage uses a common bulkhead between the liquid hydrogen and liquid oxygen tanks. The bulkhead consists of spin-formed aluminum domes welded to Y-rings and bonded to a perforated phenolic honeycomb core. The honeycomb core is perforated to allow the air in the cells to be evacuated which increases the thermal insulating properties of the bulkhead, helping to maintain the propellant at the proper condition. Nondestructive evaluation methods are being developed and proven for the dome to Y-ring weld, the as-machined spin-formed dome material and the core-to-dome bond line of the common bulkhead. The development of nondestructive evaluation methods for inspecting the core-to-dome bond lines are outlined in this work with a focus on thermographic, shearographic, and ultrasonic methods.


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    Title :

    Nondestructive testing techniques for the Ares I common bulkhead bond line


    Additional title:

    Zerstörungsfreie Prüftechnik für die Ares I Hauptschott-Klebeschicht


    Contributors:

    Published in:

    ME - Materials Evaluation ; 67 , 7 ; 775-783


    Publication date :

    2009


    Size :

    9 Seiten, 10 Bilder, 8 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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