The fiber architectures of the stomatopod dactyl club lead to an effective toughening mechanism. Composites with sinusoidally periodic helicoidal (Herringbone-type) fiber architectures were fabricated using additive manufacturing and examined under dynamic loading. Under compression at different strain rates, stress distribution was found more uniform in the Herringbone-type structure than that in the Bouligand-type one because of fiber flattening. Under dynamic compression, Herringbone-type structures with amplitude gradients resisted large strains without significant damage, leading to greater energy absorption. Simulations indicated that the Herringbone-type structure mitigated the impact waves and facilitated uniform stress redistribution, whereas the Bouligand-type structure filtered the waves. These findings would shed light on the future designs of impact-resistant bioinspired materials.


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    Title :

    Defense Mechanism of Bioinspired Composites with Sinusoidally Periodic Helicoidal Fiber Architectures


    Additional title:

    J. Aerosp. Eng.


    Contributors:
    Chen, Dianhao (author) / Yang, Ruiheng (author) / Guo, Weihua (author) / Huang, Yao (author) / Yu, T. X. (author) / Yin, Sha (author)

    Published in:

    Publication date :

    2022-09-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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