This paper describes a new concept of an active honeycomb structure for morphing wingtip applications based on tubular inflatable systems and an auxetic cellular structure. A work-energy model to predict the output honeycomb displacement versus input pressure is developed together with a finite element formulation, and the results are compared with the data obtained from a small-scale example of an active honeycomb. An analysis of the hysteresis associated with multiple cyclic loading is also provided, and design considerations for a larger-scale wingtip demonstrator are made.


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    Title :

    Active inflatable auxetic honeycomb structural concept for morphing wingtips


    Contributors:
    Sun, Jian (author) / Gao, Hongliang (author) / Scarpa, Fabrizio (author) / Lira, Cristian (author) / Liu, Yanju (author) / Leng, Jinsong (author)

    Published in:

    Smart Materials and Structures ; 23 , 12 ; 125023/1-125023/11


    Publication date :

    2014


    Size :

    11 Seiten, 50 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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