Damage and failure mechanism of bioinspired helical layered structure under low velocity impact

Xingyuan Zhang, Xin Sun, Yongxiang Dong*

*此作品的通讯作者

科研成果: 期刊稿件会议文章同行评审

摘要

Inspired by natural organisms, this paper employs carbon fiber epoxy resin composite thin layers to prepare a bioinspired helical layered structural material with excellent strength and toughness by imitating the internal helical layered structural of the mantis shrimp's rods. The deformation failure and energy absorption characteristics of this material under low velocity impact loads were studied. It shows that, the helical layered structure samples with different interlayer angles exhibit complex intralayer and interlayer stress distributions during the deformation and failure processes, which significantly affect load transfer efficiency. As the interlayer helix angle changes, these intralayer and interlayer stress distributions will vary significantly, which may lead to complex failure modes such as fiber breakage, matrix cracking, fiber-matrix debonding, and delamination, and furthermore have a substantial impact on the material's impact resistance and energy absorption. These results provide positive guidance for the internal structure design and performance optimization of lightweight, high- strength, and high-toughness materials.

源语言英语
文章编号092006
期刊Journal of Physics: Conference Series
2891
9
DOI
出版状态已出版 - 2024
活动4th International Conference on Defence Technology, ICDT 2024 - Xi'an, 中国
期限: 23 9月 202426 9月 2024

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Zhang, X., Sun, X., & Dong, Y. (2024). Damage and failure mechanism of bioinspired helical layered structure under low velocity impact. Journal of Physics: Conference Series, 2891(9), 文章 092006. https://doi.org/10.1088/1742-6596/2891/9/092006