A new, structurally-compliant rocket engine combustion chamber design has been validated through analysis and experiment. Subscale, tubular channel chambers have been cyclically tested, and analytically evaluated. Cyclic lives were determined to have a potential for 1000 percent increase in life over that of rectangular channel designs, the current state-of-the-art. Greater structural compliance in the circumferential direction gives rise to lower thermal strains during hot firing, resulting in lower thermal strain ratcheting and longer predicted fatigue lives. Thermal/durability analyses of the combustion chamber design, involving cyclic temperatures, strains, and low-cycle fatigue lives have corroborated the experimental observations.


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    Title :

    Structurally compliant rocket engine combustion chamber - Experimental and analytical validation


    Contributors:

    Conference:

    1993 JANNAF Propulsion Meeting ; 1993 ; Monterey, CA, US



    Publication date :

    1993-11-01




    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English