CN210851544U - Sandwich composite board - Google Patents
Sandwich composite board Download PDFInfo
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- CN210851544U CN210851544U CN201921597412.2U CN201921597412U CN210851544U CN 210851544 U CN210851544 U CN 210851544U CN 201921597412 U CN201921597412 U CN 201921597412U CN 210851544 U CN210851544 U CN 210851544U
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- Prior art keywords
- sandwich composite
- regular
- plate according
- honeycomb core
- composite plate
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- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 239000000853 adhesive Substances 0.000 claims abstract description 11
- 230000001070 adhesive effect Effects 0.000 claims abstract description 11
- 238000003491 array Methods 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 27
- 229920006231 aramid fiber Polymers 0.000 claims description 24
- 239000002905 metal composite material Substances 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 12
- 239000000463 material Substances 0.000 description 18
- 239000010410 layer Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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Abstract
The utility model provides a sandwich composite board, which comprises an upper panel, a honeycomb core and a lower panel which are arranged from top to bottom in sequence; the upper panel, the honeycomb core and the lower panel are bonded through adhesives; the section of the honeycomb core in the horizontal direction is composed of a plurality of regular triangle positive and negative combined arrays; the side of the regular triangle is a substructure, and the substructure consists of a regular hexagon and squares distributed at two ends of the regular hexagon respectively. By applying the technical scheme, the whole composite plate can obtain larger energy absorption with smaller deformation amount.
Description
Technical Field
The utility model relates to an automobile energy-absorbing device field specifically indicates a sandwich composite sheet.
Background
The passive safety design of the automobile plays an important role in the field of automobile design, and is directly related to personal and property safety of people. Specifically, after an accident occurs, people do not need to operate and control the material, the energy of external collision is converted into the energy of internal deformation through irreversible plastic deformation of the material, and peak destructive power is reduced, so that the injury to passengers and pedestrians is reduced as much as possible, and the material is considered as the most important defense line for traffic safety. Therefore, the research on the collision performance of the high-efficiency energy-absorbing vehicle body material under various working conditions has very important practical significance.
In addition, energy conservation and environmental protection have been the current hot time topic. It is known that since the advent of automobiles, the pollution of the environment is irrevocably responsible, and the reduction of the servicing quality of the automobiles can effectively reduce the energy consumption of the automobiles and improve the emission of the automobiles, thereby achieving the purpose of reducing the pollution degree of the ecological environment. Therefore, the light weight of the automobile has remarkable promotion effects on energy conservation and environmental protection, and is an important link of automobile design.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sandwich composite board realizes making whole composite sheet obtain great energy absorption with less deformation volume.
In order to solve the technical problem, the utility model provides a sandwich composite board, which comprises an upper panel, a honeycomb core and a lower panel which are arranged from top to bottom in sequence; the upper panel, the honeycomb core and the lower panel are bonded through adhesives; the section of the honeycomb core in the horizontal direction is composed of a plurality of regular triangle positive and negative combined arrays; the side of the regular triangle is a substructure, and the substructure consists of a regular hexagon and squares distributed at two ends of the regular hexagon respectively.
In a preferred embodiment, one side length of the square distributed at two ends of the regular hexagon coincides with one side length of the regular hexagon, and the square is arranged along the regular hexagon in an axisymmetric manner.
In a preferred embodiment, the sides of the regular hexagons and squares are formed by an arrangement of octagons.
In a preferred embodiment, a tetrakaidecahedron is obtained by cutting off a regular triangular pyramid from each of eight vertex angles of the cube; the tetrakaidecahedron is provided with six square faces and eight triangular faces; and cutting off a regular rectangular pyramid from each of six square faces of the tetrakaidecahedron to obtain the octagon.
In a preferred embodiment, the upper and lower panels are both of a fiber-metal composite structure.
In a preferred embodiment, the fiber-metal composite structure is composed of a first aramid fiber layer, an aluminum plate and a second aramid fiber layer from top to bottom in sequence; and the first aramid fiber laying layer, the aluminum plate and the second aramid fiber laying layer are bonded through an adhesive.
In a preferred embodiment, the aluminum sheet provided in the middle of the lower panel is specifically a corrugated aluminum sheet having sinusoidal corrugations.
In a preferred embodiment, the adhesive is specifically an epoxy resin.
In a preferred embodiment, the upper and lower surfaces of the aluminum plate and the upper and lower surfaces of the honeycomb core are sprayed with a primer.
Compared with the prior art, the technical scheme of the utility model possess following beneficial effect:
1. has excellent crashworthiness
The crashworthiness mainly comprises two aspects of energy absorption efficiency and load efficiency. Firstly, the aluminum material and aramid fiber forming the panel have excellent crashworthiness, and the corrugated aluminum interlayer of the lower panel can enhance buffering and improve energy absorption effect. Secondly, the parent structure arranged by the triangular array in the honeycomb core has higher load efficiency than the traditional hexagonal structure. In addition, the single-layer side of the mother structure is replaced by the hierarchical side consisting of the square and the regular hexagon, so that the energy absorption efficiency of the solar cell can be obviously improved. Finally, the honeycomb core is a three-dimensional lattice structure consisting of the octagon bodies, so that the structural stability of the honeycomb core is enhanced, and in the aspect of energy absorption, the lattice structure is subjected to a process from elastic deformation to a yield stage to a compact process, so that large energy absorption is obtained with less deformation, and materials and structures are fully utilized.
2. Has excellent mechanical property
The aluminum material and the aramid fiber have the properties of high strength and high modulus, the compression resistance of the aluminum material is higher, the aramid fiber has excellent tensile property, and the composite panel consisting of the aluminum material and the aramid fiber has complementary advantages and long service life and can bear more extreme load compared with the traditional single material.
3. High level of light weight
The aluminum material and the aramid fiber have the characteristics of low quality and high strength, the inner core parent structure is of a honeycomb structure, the wall of the child structure is of an octagonal structure, and the walls of the child structure are of porous structures, so that the light weight level of the sandwich plate is remarkably improved.
4. Corrosion resistance, high temperature resistance and long service life
The utility model discloses a all be equipped with aramid fiber and spread the layer about the panel, make it be difficult for corroding, high temperature resistant prolongs its life greatly.
Drawings
Fig. 1 is an exploded view of the overall structure of a sandwich composite plate according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the overall structure of the upper panel of the sandwich composite panel according to the preferred embodiment of the present invention;
FIG. 3 is an enlarged schematic view of a partial structure of an upper panel of a sandwich composite panel according to a preferred embodiment of the present invention;
FIG. 4 is a schematic view of the overall structure of the lower panel of the sandwich composite panel according to the preferred embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a honeycomb core structure of a sandwich composite plate according to a preferred embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of a regular triangle structure of a honeycomb core of a sandwich composite plate according to a preferred embodiment of the present invention;
fig. 7 is a schematic side length structure diagram of a regular triangle structure of a honeycomb core structure of a sandwich composite plate according to a preferred embodiment of the present invention;
FIG. 8 is a schematic view of the overall structure of the octagon of the honeycomb core structure of the sandwich composite plate according to the preferred embodiment of the present invention;
fig. 9 is a schematic cross-sectional view of octagons of the honeycomb core structure of the sandwich composite plate according to the preferred embodiment of the present invention.
Detailed Description
The invention is further described with reference to the drawings and the detailed description.
The sandwich composite board, referring to fig. 1 to 9, comprises an upper panel 1, a honeycomb core 2 and a lower panel 3 which are arranged in sequence from top to bottom; the upper panel 1, the honeycomb core 2 and the lower panel 3 are bonded through adhesives; the section of the honeycomb core 2 in the horizontal direction is composed of a plurality of regular triangle 21 positive and negative combined arrays; the side of the regular triangle 21 is specifically a substructure, and the substructure is composed of a regular hexagon 211 and squares 212 respectively distributed at two ends of the regular hexagon 211. One side length of the square 212 distributed at two ends of the regular hexagon 211 is coincident with one side length of the regular hexagon 211, and the square 212 is arranged along the regular hexagon 211 in an axial symmetry manner. Specifically, the sides of the regular hexagon 211 and the square 212 are specifically arranged by the octagon 210. Specifically, a tetrakaidecahedron is obtained after a regular triangular pyramid is respectively cut off from eight vertex angles of the cube; the tetrakaidecahedron is provided with six square faces and eight triangular faces; the octagon 210 is obtained by cutting out a regular rectangular pyramid from each of six square faces of the tetrakaidecahedron.
The honeycomb core 2 is a three-dimensional lattice structure composed of the octagon bodies 210, not only is the structural stability enhanced, but also in the aspect of energy absorption, the lattice structure is changed from elastic deformation to yield stage to compact process, and larger energy absorption is obtained with less deformation amount, so that the material and the structure are fully utilized.
The upper panel 1 and the lower panel 3 are both of a fiber-metal composite structure.
Specifically, the fiber-metal composite structure comprises a first aramid fiber layer 11, an aluminum plate 12 and a second aramid fiber layer 13 from top to bottom in sequence; the first aramid fiber laying layer 11, the aluminum plate 12 and the second aramid fiber laying layer 13 are bonded through an adhesive. The aluminium sheet 12 arranged in the middle of the lower panel 3 is embodied as a corrugated aluminium sheet 31 having sinusoidal corrugations. The crashworthiness mainly comprises two aspects of energy absorption efficiency and load efficiency. Firstly, the aluminum material and aramid fiber forming the panel have excellent crashworthiness, and the corrugated aluminum interlayer of the lower panel 3 can enhance buffering and improve energy absorption effect. Secondly, the parent structure of the honeycomb core 2 arranged by the triangular array has higher load efficiency than the conventional hexagonal structure. In addition, the single-layer side of the mother structure is replaced by the hierarchical side composed of the square 212 and the regular hexagon 211, so that the energy absorption efficiency of the mother structure can be obviously improved. The aluminum material and the aramid fiber have the properties of high strength and high modulus, the compression resistance of the aluminum material is higher, the aramid fiber has excellent tensile property, and the composite panel consisting of the aluminum material and the aramid fiber has complementary advantages and long service life and can bear more extreme load compared with the traditional single material. The aluminum material and the aramid fiber have the characteristics of low quality and high strength, the inner core parent structure is of a honeycomb structure, the wall of the child structure is of an octagon 210 structure, and the walls of the child structure are of porous structures, so that the light weight level of the sandwich plate is obviously improved. The utility model discloses a all be equipped with aramid fiber and spread the layer about the panel, make it be difficult for corroding, high temperature resistant prolongs its life greatly.
In particular, the adhesive is in particular an epoxy resin. In order to enhance the adhesive strength, the upper and lower surfaces of the aluminum plate 12 and the upper and lower surfaces of the honeycomb core 2 are sprayed with primer.
The above, only be the preferred embodiment of the present invention, but the design concept of the present invention is not limited to this, and any skilled person familiar with the technical field is in the technical scope disclosed in the present invention, and it is right to utilize this concept to perform insubstantial changes to the present invention, all belong to the act of infringing the protection scope of the present invention.
Claims (9)
1. The sandwich composite board is characterized by comprising an upper panel, a honeycomb core and a lower panel which are sequentially arranged from top to bottom; the upper panel, the honeycomb core and the lower panel are bonded through adhesives; the section of the honeycomb core in the horizontal direction is composed of a plurality of regular triangle positive and negative combined arrays; the side of the regular triangle is a substructure, and the substructure consists of a regular hexagon and squares distributed at two ends of the regular hexagon respectively.
2. The sandwich composite plate according to claim 1, wherein the length of one side of the squares distributed at both ends of the regular hexagon coincides with the length of one side of the regular hexagon, and the squares are axisymmetrically arranged along the regular hexagon.
3. The sandwich composite plate according to claim 2, wherein the sides of the regular hexagons and squares are specifically arranged by octagons.
4. The sandwich composite plate according to claim 3, wherein eight vertex angles of the cube are respectively cut off a regular triangular pyramid to obtain a tetrakaidecahedron; the tetrakaidecahedron is provided with six square faces and eight triangular faces; and cutting off a regular rectangular pyramid from each of six square faces of the tetrakaidecahedron to obtain the octagon.
5. The sandwich composite plate according to any one of claims 1 to 4, wherein the upper and lower plates are both of a fiber-metal composite structure.
6. The sandwich composite plate according to claim 5, wherein the fiber-metal composite structure comprises a first aramid fiber layer, an aluminum plate and a second aramid fiber layer in sequence from top to bottom; and the first aramid fiber laying layer, the aluminum plate and the second aramid fiber laying layer are bonded through an adhesive.
7. The sandwich composite plate according to claim 6, wherein the aluminium sheet provided in the middle of the lower face plate is in particular a corrugated aluminium sheet having sinusoidal corrugations.
8. The sandwich composite plate according to claim 6, wherein the adhesive is in particular an epoxy resin.
9. The sandwich composite plate according to claim 8, wherein the aluminum plate has primer sprayed on both the upper and lower surfaces thereof and the honeycomb core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921597412.2U CN210851544U (en) | 2019-09-24 | 2019-09-24 | Sandwich composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921597412.2U CN210851544U (en) | 2019-09-24 | 2019-09-24 | Sandwich composite board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210851544U true CN210851544U (en) | 2020-06-26 |
Family
ID=71298884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921597412.2U Expired - Fee Related CN210851544U (en) | 2019-09-24 | 2019-09-24 | Sandwich composite board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210851544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576644A (en) * | 2019-09-24 | 2019-12-17 | 华侨大学 | sandwich composite board |
-
2019
- 2019-09-24 CN CN201921597412.2U patent/CN210851544U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576644A (en) * | 2019-09-24 | 2019-12-17 | 华侨大学 | sandwich composite board |
| CN110576644B (en) * | 2019-09-24 | 2023-12-29 | 华侨大学 | Sandwich composite board |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200626 |
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| CF01 | Termination of patent right due to non-payment of annual fee |