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Sandwich structure and honeycomb structure core

A honeycomb structure and sandwich technology, which is applied in the field of sandwich structure and honeycomb structure core, can solve the problems of impact resistance, shock absorption and buffering, insufficient energy absorption, etc., and achieve multi-functional comprehensive performance, good energy absorption and crush deformation, The effect of high energy absorption efficiency

Inactive Publication Date: 2015-09-09
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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. Significantly insufficient energy absorption

Method used

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  • Sandwich structure and honeycomb structure core
  • Sandwich structure and honeycomb structure core
  • Sandwich structure and honeycomb structure core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Embodiment 1 is the sandwich plate that is the core matrix with the multi-stage honeycomb structure, and its structure is as follows figure 2 As shown, it includes an upper plane plate 1, a core body 2 and a lower plane plate 3. The upper plane plate 1 and the core body 2 as well as the core body 2 and the lower plane plate 3 are connected by bonding. The matrix materials constituting the upper plane plate 1, the lower plane plate 3, and the core body 2 can be made of different materials according to the requirements of different fields, and are not limited to metal materials.

Embodiment 2

[0061] Embodiment 2 is a sandwich pipe material with a multi-level honeycomb structure as the core matrix, and its structure is as follows image 3 As shown, it includes an outer tube 4 , a core 5 and an inner tube 6 . The outer tube 4 and the core body 5 as well as the core body 5 and the inner tube 6 are also connected by bonding. Similarly, the matrix materials constituting the outer tube 4, the core body 5, and the inner tube 6 can be made of different materials according to the requirements of different fields, and are not limited to metal materials.

Embodiment 3

[0063] Embodiment 3 is a sandwich curved panel with a multi-level honeycomb structure as the core matrix. Its structure is shown in FIG. Wherein the upper curved panel 8 and the lower curved panel 10 are provided with lightening holes 7; the upper curved panel 8 and the core 9 and the core 9 and the lower curved panel 10 are connected by bonding. The matrix materials constituting the upper curved panel 8, the core body 9 and the lower curved panel 10 can be made of different materials according to the requirements of different fields, and are not limited to metal materials.

[0064] When the core needs to have a strong energy absorption capacity, by increasing the weight-reducing holes 7 and reducing the thickness of the curved panel, the weight of the sandwich curved panel structure can be effectively reduced without affecting its performance, which is useful in the automotive and aerospace fields Wide application prospects.

[0065] The manufacturing process of the above-me...

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Abstract

The invention provides a sandwich structure, comprising a first interlayer, a second interlayer and a core located between the first interlayer and the second interlayer. The core is in a multilevel honeycomb structure. In the multilevel honeycomb structure, intersections of every two or three sides of a current-level honeycomb structure having cell-element side length L<0> are replaced with polygons with side length L<1> to form a next-level honeycomb structure, wherein L<1> is less than L<0>. The sandwich structure is light in weight, high in specific strength, high in energy absorption efficiency, good in thermal insulation and acoustic insulation, and high in multifunctional comprehensive performance; compared with the traditional honeycomb structures in in-plane (X-Y) and out-plane (Z) directions, the sandwich structure is evidently higher in various performances such as mechanical properties, mechanical strength, energy absorption efficiency and impact resistance; the higher the honeycomb level, the better the performances; thus, the honeycomb structure is of greater advantages in the engineering field than the traditional honeycomb structures.

Description

technical field [0001] The invention relates to structural materials, in particular to a sandwich structure and a honeycomb structure core. 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, animal bones and sponges. 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 insulation, etc. It has excellent performance and is an ideal lightweight structural...

Claims

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Application Information

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IPC IPC(8): B32B3/20B32B3/24B32B1/00B32B33/00
CPCB32B3/20B32B1/00B32B3/266B32B33/00B32B2307/56
Inventor 孙光永崔俊佳李光耀蒋浩庞通
Owner HUNAN UNIV
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