The goal of the current work was to develop an analytical framework for design of composite struts using various levels of model fidelity. Rapid optimization trade studies were performed using low fidelity two-dimensional (2D) axisymmetric models with smeared composite properties. The optimum 2D model was compared with three-dimensional (3D) models with higher levels of fidelity in material property representation. Good agreement was found with all models. The buckling performance of the highest fidelity 3D model was found to be satisfactory for the intended loading conditions. An additional goal of this work was to perform an initial assessment of using automated fiber placement (AFP) and other advanced manufacturing methods to explore their feasibility for the fabrication of struts for lunar landers, strut-braced wings, and other aerospace components. The designs produced during this study are intended to be used to develop manufacturing demonstration units (MDU) that can be fabricated at the Integrated Structural Assembly of Advanced Composites (ISAAC) facility at Langley Research Center (LaRC) and tested in lab facilities at LaRC.


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    Title :

    Design of a Manufacturing Demonstration Unit for a Composite Lunar Landing Gear Strut


    Contributors:
    Brian H Mason (author) / Alana Zahn (author) / Kevin E Gould (author) / Adam Przekop (author)

    Conference:

    AIAA Science and Technology Forum and Exposition (2021 AIAA SciTech Forum) ; 2021 ; Virtual, US


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English





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