CN110654072A - Shearing reinforced honeycomb plate - Google Patents

Shearing reinforced honeycomb plate Download PDF

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Publication number
CN110654072A
CN110654072A CN201911068459.4A CN201911068459A CN110654072A CN 110654072 A CN110654072 A CN 110654072A CN 201911068459 A CN201911068459 A CN 201911068459A CN 110654072 A CN110654072 A CN 110654072A
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CN
China
Prior art keywords
plate
partition
corrugated
shear
plates
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Pending
Application number
CN201911068459.4A
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Chinese (zh)
Inventor
蔡建国
张骞
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Nanjing Dongchuang Engineering Technology Co Ltd
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Nanjing Dongchuang Engineering Technology Co Ltd
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Priority to CN201911068459.4A priority Critical patent/CN110654072A/en
Publication of CN110654072A publication Critical patent/CN110654072A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered 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
    • B32B3/10Layered 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
    • B32B3/12Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered 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
    • B32B7/04Interconnection of layers
    • B32B7/08Interconnection of layers by mechanical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56Damping, energy absorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/58Cuttability
    • B32B2307/581Resistant to cut
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00Buildings or parts thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00Vehicles
    • B32B2605/12Ships

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Vibration Dampers (AREA)

Abstract

The invention discloses a shear reinforced honeycomb plate, which is formed by combining a front panel, a rear panel and a reinforced honeycomb core, and is characterized in that: the reinforced honeycomb core comprises corrugated plates and partition plates, and the corrugated plates and the partition plates are alternately connected with each other; a connecting section and a separating section are formed between the corrugated plates positioned at the two sides of the partition plate and the partition plate, and the separating section is two symmetrically distributed cavities; the partition board is in a sawtooth shape with a groove in the thickness direction, and the sawtooth-shaped partition board comprises at least one platform formed by grooves with the same height; the slot is located in the separator section. The honeycomb plate is more stable in connection, safe and environment-friendly, and the structure of the added partition plate greatly enhances the shearing resistance of the honeycomb plate and has wider application space.

Description

Shearing reinforced honeycomb plate
Technical Field
The invention belongs to the technical field of honeycomb plates, and particularly relates to a shear-reinforced honeycomb plate.
Background
The aluminum honeycomb structure is a light bearing structure, and is widely applied to the fields of aerospace, ships, automobile industry, building engineering and the like due to the excellent performances of high specific strength, light weight, good stability, environmental protection and the like. The conventional honeycomb has a regular hexahedral structure, which is not only beautiful but also capable of withstanding higher compressive and tensile forces.
Honeycomb is an anisotropic material with weaker in-plane load bearing than out-of-plane load bearing, and therefore honeycomb panels have very limited in-plane applications. But in practice impact does not occur only in the out-of-plane direction, so that it is of great importance to enhance the in-plane shear resistance.
With the wider application of the cellular board, the demand of the cellular board is larger and larger, and the requirement of the shear resistance of the cellular board is larger and larger. For example, on an anti-collision panel of a ship lock, the impact angle between a ship body and a honeycomb panel of an anti-collision structure of the ship lock is within 10 degrees, the honeycomb panel mainly has shear impact when resisting the impact of the ship body, the normal platform stress needs to be controlled, and the requirement on the shearing resistance of a honeycomb is high in the impact process.
Disclosure of Invention
The invention aims to: aiming at the existing problems, the invention provides a shear-reinforced aluminum honeycomb plate, which is formed by stacking corrugated aluminum plates and partition plates at intervals to form a honeycomb core, and the internal angle of a hexagon in the honeycomb core is changed, so that the shear resistance of the structure is greatly enhanced.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a shear strenghthened type honeycomb panel, panel and strenghthened type honeycomb core combination form its characterized in that around by: the reinforced honeycomb core comprises corrugated plates and partition plates, and the corrugated plates and the partition plates are alternately connected with each other; a connecting section and a separating section are formed between the corrugated plates positioned on the two sides of the partition plate and the partition plate, and the separating section is two cavities which are symmetrically distributed.
The partition board is in a zigzag shape with a groove in the thickness direction, and the zigzag partition board comprises at least one platform formed by grooves with the same height.
The slots on the partition plate are all positioned on the upper side of the partition plate.
The ratio of the height of the groove of the clapboard to the height of the corrugated plate is 0.3-0.7.
The height of the partition board is the same as that of the corrugated plate, and the width of the groove is the same as that of the separation section.
The corrugated plate comprises a first bottom surface, a second bottom surface and a transition surface connected between the first bottom surface and the second bottom surface; the first bottom surface and the second bottom surface are respectively fixed on the two adjacent partition boards.
The transition surface is an inclined surface, and the cavity at the separation section is a trapezoidal cavity.
The corrugated plate is a corrugated aluminum plate, and the partition plate is an aluminum plate.
The corrugated plates and the partition plates are connected by brazing; the front panel and the rear panel are connected with the reinforced honeycomb core in a brazing mode.
The internal angle of the groove of the corrugated aluminum plate is 120-150 degrees; the thickness ratio of the diaphragm plate to the corrugated aluminum plate is 0.5-2.
The invention has the beneficial effects that:
through the honeycomb core of constituteing with baffle looks interval stack of corrugated aluminum plate, because the diaphragm has stronger shear resistance, this kind of enhancement mode is more high-efficient than directly increasing hexagon wall thickness, reducing the cell size. The stress of the compression-resistant platform is controlled to be less than the increase of the stress of the hexagonal cell type. The structure is softer, rigidity is little, the condition that the impact is little under the conventional side impact operating mode is satisfied. Under the special accidental impact working condition, the honeycomb structure consumes enough energy and protects the rear main body structure. The increase of the transverse partitions does not affect the local instability and the stacking compression of the cell walls, and when the axial compression performance is not affected, the honeycomb structure is guaranteed to still have a longer platform section, better buffering energy consumption capacity is achieved, and the shearing resistance is also improved to the highest degree. The structure meets the use requirement in a multi-direction stress environment, is convenient to process, does not influence welding, and enlarges the application space of the honeycomb panel.
The invention has the beneficial effects that: adopt above-mentioned scheme, ingenious adoption zigzag baffle, two adjacent buckled plates are connected in the place that zigzag baffle was not grooved, make interconnect between the buckled plate together, do not connect the position fluting of buckled plate, avoid the structure local unstability to appear, make the structure be convenient for process and do not influence the welding.
The grooves are uniformly formed in the upper side of the partition plate, and the partition plate is divided into an upper part and a lower part through the grooves, so that the upper part of the partition plate is bent to consume energy, and then the lower part of the partition plate is bent to consume energy. The multi-stress platform is equivalent to a function of early warning, the damage of the cellular board is not disposable integral damage, and the impact resistant load born by the two parts is different, so that the time difference is kept between the damage of the upper half part and the damage of the lower half part, and the early warning effect can be realized.
The value is 1/3-2/3, considering the range of the step-shaped stress area formed when the honeycomb plate is subjected to the out-of-plane impact load, if the range is too large, the step-shaped stress area cannot be formed, and if the range is too small, the addition of the partition plate has no effect.
Adopt not co-altitude corrugated aluminum plate and baffle looks spaced mode stack to form the honeycomb core for when not influencing axial compression performance, make honeycomb possess at least one by the platform that the groove of co-altitude constitutes, each platform all forms stairstepping stress platform district, stress platform district is increased to every more a kind of fluting degree of depth. The multi-stress platform has better buffering energy consumption capability and also improves the shearing resistance of the structure.
Drawings
Fig. 1 is a schematic structural diagram of a honeycomb panel according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a reinforced honeycomb core according to an embodiment.
Fig. 3 is a schematic structural diagram of a second honeycomb panel according to an embodiment of the present invention.
FIG. 4 is a schematic structural view of a honeycomb core according to the second embodiment.
FIG. 5 is a schematic structural view of a partition plate of one of the stages according to the second embodiment.
FIG. 6 is a schematic view of two stages of the second partition board according to the embodiment.
FIG. 7 is a second schematic view of the structure of two stages of the second partition board according to the second embodiment.
FIG. 8 is a comparative test of the shear resistance of a conventional honeycomb panel and a reinforced honeycomb panel of the present invention;
FIG. 9 is a stress-strain diagram of a conventional honeycomb panel;
fig. 10 is a stress-strain diagram of a reinforced honeycomb panel of the present invention.
In the figure: 1. an upper panel; 2. a lower panel; 3. a corrugated aluminum plate; 4. a partition plate; 41. a groove; 42. a first platform; 43. a second platform; 5. a connecting section; 6. and (5) separating the sections.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example one
As shown in fig. 1 and 2, the shear reinforced aluminum honeycomb panel is formed by combining an upper panel 1, a lower panel 2, corrugated aluminum plates 3 and partition plates 4, the reinforced honeycomb core is formed by stacking a plurality of corrugated aluminum plates 3 and partition plates 4 at intervals, the honeycomb core is hollow, each side length of each corrugated aluminum plate 3 is the same, and grooves and convex grooves of adjacent corrugated aluminum plates 3 are in one-to-one correspondence. When the shear reinforced aluminum honeycomb plate is manufactured, the structure of each corrugated aluminum plate 3 is the same, the structure of each partition plate 4 is the same, and the partition plates 4 are made of aluminum. The upper panel 1, the lower panel 2, the corrugated aluminum sheet 3 and the partition 4 are connected by brazing.
Upper panel 1 and lower panel 2 are parallel to each other, and panel thickness is 0.3mm, and the height of strenghthened type honeycomb core is 30mm, and corrugated aluminum plate 3's thickness is 0.3mm, and the length of side of constituteing the hexagon among the corrugated aluminum plate 3 is 10mm, and the thickness of baffle 4 is 0.3mm, and corrugated aluminum plate 3 and baffle 4's height are 30mm, and corrugated aluminum plate 3's recess internal angle is 150.
The shear reinforced aluminum honeycomb panel can be applied to ship anti-collision panels, building engineering and the like.
In the invention, the distance between the partition boards 4 can be adjusted to two corrugated aluminum plates 3 or more according to requirements, and the environment with different bearing capacity requirements can be met. The reinforced honeycomb core is ingenious in structure, the partition plates 4 are added on the basis of the traditional honeycomb core, the shearing resistance and the bearing capacity of the honeycomb plate in all directions are improved, and the figure 8 is shown.
The solid line with triangles on the surface shows a load-displacement curve of the traditional honeycomb, the solid line with dark black shows an enhanced load-displacement curve, and the adopted in-plane load shows that the enhanced bearing capacity is higher, namely the shear resistance is high.
Example two
As shown in fig. 3 and 4, the aluminum honeycomb panel with stepped platform stress is formed by combining an upper panel 1, a lower panel 2, corrugated aluminum plates 3 and partition plates 4, wherein the corrugated aluminum plates 3 and the partition plates 4 are stacked at intervals to form a honeycomb core, each side length of each corrugated aluminum plate 3 is equal, and grooves and convex grooves of adjacent corrugated aluminum plates 3 are in one-to-one correspondence. When the aluminum honeycomb plate with the stepped platform stress is manufactured, the structure of each corrugated aluminum plate 3 is the same, the structure of each partition plate 4 is the same, and the partition plates 4 are made of aluminum. The upper panel 1, the lower panel 2, the corrugated aluminum sheet 3 and the partition 4 are connected by brazing.
Upper panel 1 and lower panel 2 are parallel to each other, and panel thickness is 0.3mm, and corrugated aluminum plate 3's thickness is 0.3mm, and the length of side of constituteing the hexagon among the corrugated aluminum plate 3 is 10mm, and the thickness of baffle 4 is 0.3mm, and corrugated aluminum plate 3 highly is 30mm, and the latter half height of baffle 4 is 15mm, and 4 zigzag of baffle part height are 30mm, the width is 10mm, and corrugated aluminum plate 3's recess internal angle is 150.
In the invention, the distance between the partition plates 4 can be adjusted to two corrugated aluminum plates 3 or more according to requirements, and the magnitude of the platform stress can be changed according to requirements. The honeycomb core of the invention is skillfully constructed, the honeycomb plate is provided with stepped platform stress of two or more overstress platform areas by adding the partition boards 4 on the basis of the traditional honeycomb core and changing the height of the partition boards 4, and fig. 5 shows the partition board of a first platform 42 which is a height platform and is formed by grooves 41 with the same depth, and the stress of the partition board is provided with two platform stress areas as shown in fig. 10.
When there are two levels of grooves 41 of different depths, i.e., two levels of lands, such as the first land 42 and the second land 43 of fig. 6 and 7, the diaphragm has three land stress regions. The grooves 41 forming the first platform 42 and the second platform 43 may be of a stepped type (fig. 7) located in the same separation section, or may be formed by single height grooves provided at different heights of different separation sections, see fig. 6.
The above description is only one embodiment of the present invention, and the present invention is not limited to this embodiment, and any simple modification and replacement without departing from the principle and the essential characteristics of the present invention fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a shear strenghthened type honeycomb panel, panel and strenghthened type honeycomb core combination form its characterized in that around by: the reinforced honeycomb core comprises corrugated plates and partition plates, and the corrugated plates and the partition plates are alternately connected with each other; a connecting section and a separating section are formed between the corrugated plates positioned on the two sides of the partition plate and the partition plate, and the separating section is two cavities which are symmetrically distributed.
2. The shear-reinforced cellular board of claim 1, wherein: the partition board is in a sawtooth shape with a groove in the thickness direction, and the sawtooth-shaped partition board comprises at least one platform formed by grooves with the same height; the slot is located in the separator section.
3. The shear-reinforced cellular board of claim 2, wherein: the slots on the partition plate are all positioned on the upper side of the partition plate.
4. The shear-reinforced cellular board of claim 2, wherein: the ratio of the height of the groove of the clapboard to the height of the corrugated plate is 0.1-1.0.
5. The shear-reinforced cellular board of claim 2, wherein: the height of the partition board is the same as that of the corrugated plate, and the width of the groove is the same as that of the separation section.
6. The shear reinforced cellular board of claims 1-5, wherein: the corrugated plate comprises a first bottom surface, a second bottom surface and a transition surface connected between the first bottom surface and the second bottom surface; the first bottom surface and the second bottom surface are respectively fixed on the two adjacent partition boards.
7. The shear-reinforced cellular board of claim 6, wherein: the transition surface is an inclined surface, and the cavity at the separation section is a trapezoidal cavity.
8. The shear-reinforced cellular board of any one of claims 1 to 5, wherein: the corrugated plate is a corrugated aluminum plate, and the partition plate is an aluminum plate.
9. The shear-reinforced cellular board of claim 8, wherein: the corrugated plates and the partition plates are connected by brazing; the front panel and the rear panel are connected with the reinforced honeycomb core in a brazing mode.
10. The shear-reinforced cellular board of claim 1, wherein: the internal angle of the groove of the corrugated aluminum plate is 120-150 degrees; the thickness ratio of the diaphragm plate to the corrugated aluminum plate is 0.1-10.
CN201911068459.4A 2019-11-05 2019-11-05 Shearing reinforced honeycomb plate Pending CN110654072A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111186178A (en) * 2020-02-25 2020-05-22 东南大学 Cellular board structure with planar multidirectional isotropic honeycomb sandwich
CN112060693A (en) * 2020-08-25 2020-12-11 哈尔滨乾行达科技有限公司 Method for manufacturing honeycomb structure
CN113844113A (en) * 2021-09-28 2021-12-28 东南大学 Honeycomb material based on bidirectional stacking three-pump folding

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1038853A (en) * 1988-06-30 1990-01-17 明尼苏达州采矿制造公司 Retroreflective pavement marker
JP2002036407A (en) * 1999-07-26 2002-02-05 Kenichi Shu Cross board
CN103498529A (en) * 2013-09-13 2014-01-08 北京工业大学 Assembly type prestress honeycombed ribbed web plate composite beam
CN105205207A (en) * 2015-08-19 2015-12-30 南京理工大学 Method for calculating double reinforced regular hexagon honeycomb axial compressive stress
CN106867251A (en) * 2017-01-24 2017-06-20 杭州昂瑞阻燃科技有限公司 A kind of prepreg and the method that honeycomb core is prepared by it
CN110296172A (en) * 2019-06-17 2019-10-01 江苏科技大学 A kind of vibration isolation anti-impact device and preparation method thereof
CN211567133U (en) * 2019-11-05 2020-09-25 南京东创工程科技有限公司 Shearing reinforced honeycomb plate

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1038853A (en) * 1988-06-30 1990-01-17 明尼苏达州采矿制造公司 Retroreflective pavement marker
JP2002036407A (en) * 1999-07-26 2002-02-05 Kenichi Shu Cross board
CN103498529A (en) * 2013-09-13 2014-01-08 北京工业大学 Assembly type prestress honeycombed ribbed web plate composite beam
CN105205207A (en) * 2015-08-19 2015-12-30 南京理工大学 Method for calculating double reinforced regular hexagon honeycomb axial compressive stress
CN106867251A (en) * 2017-01-24 2017-06-20 杭州昂瑞阻燃科技有限公司 A kind of prepreg and the method that honeycomb core is prepared by it
CN110296172A (en) * 2019-06-17 2019-10-01 江苏科技大学 A kind of vibration isolation anti-impact device and preparation method thereof
CN211567133U (en) * 2019-11-05 2020-09-25 南京东创工程科技有限公司 Shearing reinforced honeycomb plate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111186178A (en) * 2020-02-25 2020-05-22 东南大学 Cellular board structure with planar multidirectional isotropic honeycomb sandwich
CN112060693A (en) * 2020-08-25 2020-12-11 哈尔滨乾行达科技有限公司 Method for manufacturing honeycomb structure
CN113844113A (en) * 2021-09-28 2021-12-28 东南大学 Honeycomb material based on bidirectional stacking three-pump folding
CN113844113B (en) * 2021-09-28 2023-04-07 东南大学 Honeycomb material based on bidirectional stacking three-pump folding

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