The invention discloses a thin-walled tube filled with mixed Poisson's ratio metamaterials, which comprises at least one PPR (Positive Poisson's ratio) filling strip, at least one NPR (Negative Poisson's ratio) filling strip and a thin-walled tube body with a porous structure, and each hole of the thin-walled tube body is filled with the PPR filling strip or the NPR filling strip respectively; the PPR filling strip is formed by sequentially connecting a plurality of PPR cell elements, and the PPR cell elements are made of a positive Poisson's ratio metamaterial; the NPR filling strip is formed by sequentially connecting a plurality of NPR cell elements, and the NPR cell elements are made of negative Poisson's ratio metamaterials. The thin-walled tube is filled with the PPR filling strips made of the positive Poisson's ratio metamaterial and the NPR filling strips made of the negative Poisson's ratio metamaterial at the same time, so that the thin-walled tube can have the long effective compression stroke of the negative Poisson's ratio metamaterial and the high compression force platform of the positive Poisson's ratio metamaterial at the same time; and the impact resistance and the energy absorption capability of the structure can be greatly improved.
本发明公开了一种填充混合泊松比超材料的薄壁管,包括至少一个PPR(PositivePoisson ratio,正泊松比)填充条、至少一个NPR(NegativePoissonratio,负泊松比)填充条以及具有多孔结构的薄壁管本体,所述薄壁管本体的各个孔分别被所述PPR填充条或所述NPR填充条填充;所述PPR填充条由多个PPR胞元依次相连组成,所述PPR胞元由正泊松比超材料制成;所述NPR填充条由多个NPR胞元依次相连组成,所述NPR胞元由负泊松比超材料制成。本发明所述薄壁管同时填充了由正泊松比超材料制得的PPR填充条和由负泊松比超材料制得的NPR填充条,使其能够同时兼有负泊松比超材料较长的有效压缩行程和正泊松比超材料较高的压缩力平台,能够极大地提升结构的抗冲击和能量吸收能力。
Thin-walled tube filled with mixed Poisson ratio metamaterials
一种填充混合泊松比超材料的薄壁管
2023-02-03
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
Pre-folded thin-walled tube structure filled with density gradient honeycombs
European Patent Office | 2025
|Automobile front longitudinal beam filled with negative poisson ratio honeycomb material
European Patent Office | 2020
|Automobile anti-collision beam filled with negative poisson ratio honeycomb-like sandwich
European Patent Office | 2024
|Crashworthiness Optimization of Foam-Filled Thin-Walled Structures
British Library Conference Proceedings | 2008
|