Modern fighter aircraft cannot fly without their on-board computer. In order to predict equipment lifetime, the US Airforce is analyzing fatigue produced by both vibration and temperature. The characteristics of solder are summarized. The determination of vibration life is then examined, with the finite-element analysis involved. Calculations relating to ability to survive thermal cycling are also presented. Compatibility of thermal coefficients of expansion, and the relief of strain by the use of flexible wires, are considered.


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    Title :

    Tougher tests for military electronics


    Additional title:

    Strenge Pruefverfahren fuer militaerische Elektronik


    Contributors:

    Published in:

    Machine Design ; 61 , 10 ; 105-109


    Publication date :

    1989


    Size :

    5 Seiten


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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