CN109094139B - Novel structural honeycomb sandwich plate - Google Patents
Novel structural honeycomb sandwich plate Download PDFInfo
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- CN109094139B CN109094139B CN201810896962.8A CN201810896962A CN109094139B CN 109094139 B CN109094139 B CN 109094139B CN 201810896962 A CN201810896962 A CN 201810896962A CN 109094139 B CN109094139 B CN 109094139B
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- honeycomb
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- 239000002131 composite material Substances 0.000 claims abstract description 24
- 239000012792 core layer Substances 0.000 claims abstract description 24
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 229920000271 Kevlar® Polymers 0.000 claims description 4
- 239000004761 kevlar Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 abstract description 10
- 238000007906 compression Methods 0.000 abstract description 10
- 238000005452 bending Methods 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011664 nicotinic acid Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/08—Interconnection of layers by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
- B32B2262/0269—Aromatic polyamide fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2553/00—Packaging equipment or accessories not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/18—Aircraft
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Floor Finish (AREA)
Abstract
The invention discloses a new structural honeycomb sandwich plate; the honeycomb sandwich plate consists of an aluminum alloy panel, a honeycomb core layer, a composite material panel and a sandwich plate body; the honeycomb sandwich plate body is formed by pressing, and sequentially comprises an aluminum alloy panel, a honeycomb core layer and a composite material panel from outside to inside, wherein the inner surface of the aluminum alloy panel is connected with the top end part of the honeycomb core layer, and the inner surface of the composite material panel is connected with the bottom end part of the honeycomb core layer; a plurality of honeycomb unit cells are arranged in parallel at equal intervals and are adhered to the large ribbed plates, the linear contact parts between the honeycomb unit cells are welded to form honeycomb chains, the honeycomb chains are laminated and adhered with two adjacent honeycomb chains, and the side edges of the honeycomb unit cells are symmetrically connected with the small ribbed plates according to the central cylinder. The sandwich plate utilizes the characteristic that the cylinder is stable in axial compression and plastic in energy absorption, improves the specific rigidity and specific strength of the honeycomb sandwich plate for bearing out-of-plane load, and enables the stress of the panel to be more uniform; the mechanical property of the honeycomb core and the capacity of external load at the bearing surface are enhanced, and the compression resistance, bending resistance and impact resistance of the honeycomb sandwich plate are improved.
Description
Technical Field
The invention relates to the technical field of composite material structure design and manufacture, in particular to a novel structural honeycomb sandwich panel which is suitable for designing and manufacturing composite materials and structures of wing lappets, empennages and core layers of packing boxes.
Background
The honeycomb sandwich plate has the characteristics of light weight, large specific stiffness, high specific strength, good stability, heat insulation and sound insulation, and is widely applied in the fields of aerospace, automobiles, ships, packaging and transportation and the like. The regular hexagonal honeycomb is a great achievement of bionic application of human beings, and the regular hexagonal honeycomb is the outstanding work of nature, and in history, multiple scholars study the regular hexagonal honeycomb and indicate that the natural honeycomb has the largest volume and the best rigidity under the same mass. At present, the regular hexagon honeycomb sandwich plate is mature in design theory and manufacturing technology, the working principle of deformation resistance of the regular hexagon honeycomb sandwich plate is similar to that of an I-shaped beam, a channel beam and the like, and under the premise of not improving material performance, deformation and stress are reduced as much as possible under the same load through reasonable design of section size and shape, so that the quality is reduced as much as possible. But the regular hexagonal honeycomb core commonly found in sandwich panels is not optimal from a lightweight perspective.
The improvement of the honeycomb configuration has been studied, and in the published document "Materials and design 110(2016)705 and 719", it is mentioned that the vertex fractal is performed on the regular hexagonal honeycomb to obtain the first-order fractal honeycomb and the second-order fractal honeycomb, although the out-of-plane mechanical property is improved, the configuration is more complex and the processing and manufacturing are difficult.
In patent CN103991247A, "a honeycomb plate with a hollow light-weight honeycomb-like bionic structure" is disclosed, the honeycomb plate of the bionic structure has no obvious change from the whole structure of the honeycomb core, and the panel unsupported area of the honeycomb sandwich plate has no obvious increase, so that the out-of-plane compression and impact resistance capability is not greatly improved relative to the increase of the mass. Although the common honeycomb sandwich plate has excellent performance in the aspect of out-of-plane bearing, the bearing capacity of the common honeycomb sandwich plate is limited, the core is easy to plastically bend under the action of larger out-of-plane pressure or impact load, and the sandwich plate quickly enters a platform stress period, so that the bearing capacity of the structure is obviously reduced.
Disclosure of Invention
In order to avoid the defects of the prior art, the invention provides a novel structural honeycomb sandwich plate; the honeycomb sandwich plate utilizes the characteristic that the cylinder is stable in axial compression and plastic in energy absorption, improves the specific rigidity and specific strength of the honeycomb sandwich plate for bearing out-of-plane load, and enables the stress of the panel to be more uniform; the mechanical property of the honeycomb core and the capacity of external load on the bearing surface are enhanced, and the compression resistance, bending resistance and impact resistance of the honeycomb sandwich plate are improved.
The invention solves the technical problem by adopting the technical scheme that the sandwich plate comprises a sandwich plate body and is characterized in that the sandwich plate body is formed by pressing, an aluminum alloy panel, a honeycomb core layer and a composite material panel are sequentially arranged from outside to inside, the inner surface of the aluminum alloy panel is connected with the top end part of the honeycomb core layer, the aluminum alloy panel is used for directly bearing external load, the inner surface of the composite material panel is connected with the bottom end part of the honeycomb core layer, and the composite material panel is used for bearing load and in-plane stress transmitted by the honeycomb core;
the honeycomb core layer comprises honeycomb unit cells, a large ribbed plate, small ribbed plates and a cylinder, wherein a plurality of honeycomb unit cells are arranged in parallel at equal intervals and are adhered to the large ribbed plate, line contact parts between the honeycomb unit cells are welded to form honeycomb chains and are bonded with two adjacent honeycomb chains in a stacking mode, the side edges of the honeycomb unit cells are symmetrically connected with the small ribbed plates according to the central cylinder, four unshared side walls of the honeycomb are inwards folded along the central line to form an included angle theta, the folded angle line is connected with the wall of the cylinder through the small ribbed plates, and the included angle theta is larger than minus 30 degrees and smaller than or equal to 30 degrees.
The cylinder is a hollow thin-walled aluminum part.
The large rib plates and the small rib plates are made of aluminum alloy materials.
The composite material panel is a Kevlar fiber composite material panel.
Advantageous effects
The invention provides a new structural honeycomb sandwich plate; the honeycomb sandwich plate body is formed by pressing, and sequentially comprises an aluminum alloy panel, a honeycomb core layer and a composite material panel from outside to inside, wherein the inner surface of the aluminum alloy panel is connected with the top end part of the honeycomb core layer, and the inner surface of the composite material panel is connected with the bottom end part of the honeycomb core layer; a plurality of honeycomb unit cells are arranged in parallel at equal intervals and are adhered to the large ribbed plates, the linear contact parts between the honeycomb unit cells are welded to form honeycomb chains, the honeycomb chains are laminated and adhered with two adjacent honeycomb chains, and the side edges of the honeycomb unit cells are symmetrically connected with the small ribbed plates according to the central cylinder. The sandwich plate utilizes the characteristic that the cylinder is stable in axial compression and plastic in energy absorption, improves the specific rigidity and specific strength of the honeycomb sandwich plate for bearing out-of-plane load, and enables the stress of the panel to be more uniform; the mechanical property of the honeycomb core and the capacity of external load at the bearing surface are enhanced, and the compression resistance, bending resistance and impact resistance of the honeycomb sandwich plate are improved.
Drawings
The new structure of honeycomb sandwich panel of the present invention will be described in detail with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic view of the honeycomb sandwich panel with the new configuration of the invention.
Fig. 2 is a top view of the honeycomb sandwich panel of the new configuration of the present invention.
Fig. 3 is a top view of honeycomb unit cell of the honeycomb sandwich plate with new structure.
Fig. 4 is a perspective view of honeycomb unit cell of the honeycomb sandwich plate with the novel structure.
Fig. 5 is a schematic view of a honeycomb chain of the honeycomb sandwich panel with the new configuration.
In the drawings
1. Aluminum alloy panel 2, honeycomb core layer 3, composite material panel 4, large rib plate 5, cylinder 6, small rib plate 7, honeycomb unit cell
Detailed Description
The embodiment is a new structural honeycomb sandwich plate.
Referring to fig. 1 to 5, in the new-configuration honeycomb sandwich panel of this embodiment, the sandwich panel body is formed by pressing, and the aluminum alloy panel 1, the honeycomb core layer 2, and the composite material panel 3 are sequentially arranged from outside to inside, the inner surface of the aluminum alloy panel 1 is connected to the top end portion of the honeycomb core layer 2, the aluminum alloy panel 1 is used to directly bear an external load, the inner surface of the composite material panel 3 is connected to the bottom end portion of the honeycomb core layer 2, and the composite material panel 3 is used to bear a load and an in-plane stress transmitted by the honeycomb. The composite material panel is a Kevlar fiber composite material panel.
In the embodiment, the honeycomb core layer 2 comprises honeycomb unit cells 7, large ribbed plates 4, small ribbed plates 6 and cylinders 5, wherein a plurality of honeycomb unit cells 7 are arranged in parallel at equal intervals and are adhered to the large ribbed plates 4, and linear contact parts between the honeycomb unit cells 7 are welded to form honeycomb chains and are laminated and adhered with two adjacent honeycomb chains; the side edges of a honeycomb unit cell 7 are symmetrically connected with a small rib plate 6 according to a central cylinder 5, four unshared side walls of the honeycomb are folded inwards along a central line to form an included angle theta, the folded line is connected with the wall of the cylinder through the small rib plate 6, and the included angle theta is larger than or equal to minus 30 degrees and smaller than or equal to 30 degrees.
The cylinder 5 is a hollow thin-walled aluminum part. The large rib plates 4 and the small rib plates 6 are made of aluminum alloy materials.
The method for preparing and bonding the honeycomb sandwich plate with the new configuration comprises the step of optimizing out-of-plane compressive strength of a folded angle theta and the diameter d of a cylinder 5 by using finite element software to obtain the new configuration honeycomb, wherein the optimal size parameter theta is 20 degrees, and d is 2.4 cm. The aluminum honeycomb unit cell 7 is prepared by utilizing a stamping die technology, the wall thickness of the newly-structured honeycomb is 0.5mm, the side length l of the honeycomb is 6cm, and the height of the honeycomb is 12 cm. A plurality of aluminum honeycomb unit cells 7 are arranged in parallel and are adhered to the aluminum large ribbed plate 4, line contact parts between the honeycomb unit cells 7 are welded to form honeycomb chains, other two honeycomb chains are simultaneously manufactured, and the honeycomb chains are bonded together in a superposition Roehan mode to form a honeycomb core layer 2. The aluminum honeycomb core layer 2 is adhered to the aluminum alloy panel 1, and the Kevlar fiber composite material panel 3 is adhered to the other surface of the honeycomb core layer 2. In the embodiment, the cylinders with the diameter d are arranged in the honeycomb sandwich plate, so that the ability of the honeycomb to resist out-of-plane compression can be improved, the cylinders generally have a stable progressive failure mode under the axial pressure, the cylinders absorb energy through plastic buckling, and the honeycomb sandwich plate is a buffering energy-absorbing structure with excellent performance. The four non-shared side walls of the honeycomb are folded inwards by a certain angle theta along the central line, so that the material consumption of the small rib plates can be reduced, the stability of the side walls of the honeycomb in a load state can be improved, and the critical load when Euler buckling occurs is improved through the structural section shape and size. The small ribbed plates can fix the relative positions of the cylinder and the honeycomb, and can also improve the out-of-plane compression resistance of the honeycomb. The bearing wall is increased by adding three modes of the cylinder in the honeycomb unit cell, the honeycomb unshared side wall is folded along the central line and the small rib plate is arranged, so that the stress of the panel and the honeycomb core is more uniform, the stress concentration phenomenon can be effectively reduced, the Euler critical load causing the instability of the sandwich structure is improved, and the compression resistance, bending resistance, impact resistance and other capabilities of the sandwich plate are improved.
Claims (4)
1. A new-structure honeycomb sandwich plate comprises a sandwich plate body and is characterized in that the sandwich plate body is formed by pressing, an aluminum alloy panel, a honeycomb core layer and a composite material panel are sequentially arranged from outside to inside, the inner surface of the aluminum alloy panel is connected with the top end part of the honeycomb core layer, the aluminum alloy panel is used for directly bearing an external load, the inner surface of the composite material panel is connected with the bottom end part of the honeycomb core layer, and the composite material panel is used for bearing the load and the in-plane stress transmitted by the honeycomb core;
the honeycomb core layer comprises honeycomb unit cells, a large ribbed plate, small ribbed plates and a cylinder, wherein a plurality of honeycomb unit cells are arranged in parallel at equal intervals and are adhered to the large ribbed plate, line contact parts between the honeycomb unit cells are welded to form honeycomb chains and are bonded with two adjacent honeycomb chains in a stacking mode, the side edges of the honeycomb unit cells are symmetrically connected with the small ribbed plates according to the central cylinder, four unshared side walls of the honeycomb are inwards folded along the central line to form an included angle theta, the folded angle line is connected with the wall of the cylinder through the small ribbed plates, and the included angle theta is larger than minus 30 degrees and smaller than or equal to 30 degrees.
2. The new structural honeycomb sandwich panel of claim 1 wherein said cylinder is a hollow thin-walled aluminum article.
3. The new structural honeycomb sandwich panel of claim 1 wherein the large and small rib panels are made of aluminum alloy.
4. The new structural honeycomb sandwich panel of claim 1 wherein said composite panel is a Kevlar composite panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810896962.8A CN109094139B (en) | 2018-08-08 | 2018-08-08 | Novel structural honeycomb sandwich plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810896962.8A CN109094139B (en) | 2018-08-08 | 2018-08-08 | Novel structural honeycomb sandwich plate |
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| CN109094139A CN109094139A (en) | 2018-12-28 |
| CN109094139B true CN109094139B (en) | 2020-09-22 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102210115B1 (en) * | 2019-06-11 | 2021-01-29 | 경남대학교 산학협력단 | An unit-cell structure and A sandwich plate comprising the same |
| CN110450966B (en) * | 2019-07-02 | 2021-01-26 | 北京交通大学 | Multidirectional-bearing honeycomb structure buffering energy-absorbing device |
| CN110329551B (en) * | 2019-07-18 | 2022-08-12 | 南京航空航天大学 | Bionic multifunctional thermal protection structure and forming method thereof |
| CN110576654B (en) * | 2019-09-04 | 2023-06-20 | 华侨大学 | Sandwich structure applied to automobile collision energy-absorbing box |
| CN110626007B (en) * | 2019-10-16 | 2024-03-15 | 湖北汽车工业学院 | Multi-scheme energy-absorbing sandwich plate structure |
| CN111128108B (en) * | 2019-12-19 | 2023-05-23 | 中国航空工业集团公司西安飞机设计研究所 | Noise reduction honeycomb structure |
| CN111300943A (en) * | 2020-03-25 | 2020-06-19 | 西北工业大学 | Thick-wall honeycomb sandwich structure and method |
| CN112060693B (en) * | 2020-08-25 | 2023-04-07 | 哈尔滨乾行达科技有限公司 | Method for manufacturing honeycomb structure |
| CN112743933B (en) * | 2020-12-02 | 2022-12-27 | 郑州大学 | Double-layer self-spinning folded paper honeycomb interlayer energy absorption material and preparation method thereof |
| CN113147107B (en) * | 2021-03-09 | 2022-12-06 | 哈尔滨工业大学（威海） | Honeycomb sandwich structure formed by C/C composite material and alloy and preparation method thereof |
| CN115320183B (en) * | 2022-08-22 | 2024-01-16 | 大连交通大学 | Honeycomb core with S-configuration reinforcing structure |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53110665A (en) * | 1977-03-09 | 1978-09-27 | Ono Satoru | Production of core material for base plate |
| JPH08192485A (en) * | 1995-01-19 | 1996-07-30 | Nippon Light Metal Co Ltd | Honeycomb panel and manufacture thereof |
| JP3645999B2 (en) * | 1997-12-26 | 2005-05-11 | 株式会社ユタカ技研 | Method for manufacturing honeycomb tubular body |
| CN1748486A (en) * | 2005-08-22 | 2006-03-22 | 薛斌凯 | Honeycomb composite plate core board |
| CN103991247A (en) * | 2014-05-16 | 2014-08-20 | 江苏大学 | Honeycomb paperboard with hollow and light-weight honeycomb-like bionic structure |
| CN105117542A (en) * | 2015-08-19 | 2015-12-02 | 南京理工大学 | Method for calculating axial compressive stress of novel quadrilateral chiral honeycomb |
| CN105398100B (en) * | 2015-12-23 | 2017-11-07 | 东南大学 | A kind of honeycomb sandwich panel |
| CN206663885U (en) * | 2017-03-20 | 2017-11-24 | 蜂井包装工业无锡有限公司 | A kind of cellular board |
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