Defense Mechanism of Bioinspired Composites with Sinusoidally Periodic Helicoidal Fiber Architectures

Dianhao Chen; Ruiheng Yang; Weihua GuoYao HuangT. X. YuSha Yin

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Defense Mechanism of Bioinspired Composites with Sinusoidally Periodic Helicoidal Fiber Architectures

机译：Defense Mechanism of Bioinspired Composites with Sinusoidally Periodic Helicoidal Fiber Architectures

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Abstract 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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来源
《Journal of Aerospace Engineering》 |2022年第5期|1-8|共8页
作者
Dianhao Chen; Ruiheng Yang; Weihua GuoYao HuangT. X. YuSha Yin;
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作者单位

Beihang Univ.;

Hong Kong Univ. of Science and Technology;

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原文格式 PDF
正文语种英语
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关键词
Mantis shrimp; Bioinspired composites; Architecture; Dynamic behavior; Crashworthiness;

Defense Mechanism of Bioinspired Composites with Sinusoidally Periodic Helicoidal Fiber Architectures

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