The invention relates to the technical field of composite materials, in particular to a fiber composite bionic composite structural member. The fiber composite bionic composite structural member has anti-twisting and buffering energy-absorbing performance and is composed of an inner layer, a middle layer and an outer layer. The inner layer is made of buckling induction type negative Poisson's ratio porous metal; the middle layer is a hollow cylindrical metal shell in contact with the porous metal; and the outer layer is a fiber composite material layer wound on the hollow cylindrical metal shell. According to the fiber composite bionic composite structural member with the twisting resistance, buffering and energy absorption functions, the core part is of a negative Poisson's ratio porous metal structure and imitates the shape of a through hole in a sea urchin thorn, and the middle layer is a metal shell and imitates the growth ring shape of the sea urchin thorn; the negative Poisson's ratio structure contracts transversely during compression and expands transversely during stretching, and the negative Poisson's ratio structure has better kink resistance compared with a common porous structure.
本发明涉及复合材料技术领域,尤其涉及一种纤维复材仿生复合结构构件。该纤维复材仿生复合结构构件具有抗扭折和缓冲吸能性能,由内层、中间层、外层三部分组成;所述内层为屈曲诱导型负泊松比多孔的金属;所述中间层为与多孔金属接触的空心圆筒状金属壳;所述外层为缠绕在空心圆筒状金属壳上的纤维复材层。该具有抗扭折和缓冲吸能的纤维复材仿生复合结构构件,芯部为负泊松比多孔金属结构,仿海胆刺内部的通孔形状,中间层为金属壳,仿海胆刺的生长环形态;负泊松比结构在压缩时横向收缩,在拉伸时横向膨胀,该结构比一般的多孔结构具有更好的抗扭折性能。
Fiber composite bionic composite structural member and preparation method thereof
一种纤维复材仿生复合结构构件及制备方法
2023-05-16
Patent
Electronic Resource
Chinese
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT |
Bionic wear-resistant structure of fiber composite material and preparation method thereof
European Patent Office | 2020
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