Core cell structure, core with porous structure and sandwich energy absorption structure

Abstract

The invention discloses a core cell structure. The core cell structure comprises an outer layer and an inner layer, wherein both the outer layer and the inner layer are three-period minimal curved surfaces; a cavity is formed between the outer layer and the inner layer; a connecting plate for connecting the outer layer with the inner layer is arranged in the cavity; an upper opening and a lower opening which extend to the outside of the cavity and are opposite to each other are formed in each of the outer layer and the inner layer; and a plurality of lateral openings which extend to the outside of the cavity are formed in the peripheral side of each of the outer layer and the inner layer. The invention also discloses a core with a porous structure. The core with the porous structure comprises the core cell structures, wherein the adjacent core cell structures are in butt joint with each other through the corresponding opening, and the outer layers and the inner layers of the core cellstructures form a continuous curved surface. The invention also discloses a sandwich energy absorption structure which comprises a first interlayer, a second interlayer and the core with the porous structure, and the core with the porous structure is clamped between the first interlayer and the second interlayer. The core cell structure, the core with the porous structure and the sandwich energy absorption structure have the advantages of simple structure, high energy absorption efficiency and the like.

Description

technical field [0001] The invention mainly relates to the field of core technology, in particular to a core cell structure, a porous structure core and a sandwich energy-absorbing structure. Background technique [0002] The natural world has always been the source of inspiration for human beings to obtain inventions and creations. The unique shape, internal microstructure and optimization principles of living organisms provide new design ideas and bionic theoretical references for engineering technology R&D personnel. Porous materials widely exist in nature, such as wood, honeycomb (such as figure 1 shown), animal bones and sponges, etc. Some structures with excellent performance imitated this kind of biological structure design, such as honeycomb aluminum sandwich structure, etc., have low relative density, high specific strength and specific stiffness, high energy absorption efficiency, good impact resistance, shock absorption and buffering, heat insulation and sound in...

AI Technical Summary

Problems solved by technology

[0004] With the development of science and technology, high-tech fields such as automobiles, aerospace, and navigation have higher and higher requirements for lightweight and high-performance structures. At present, the above-mentioned common sandwich structures at home and abroad can resist impact, shock absorption, cushioning, Significantly insufficient energy absorption

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