CN105799231B - The core filled composite material of opposite hemispherical Shell scapus born of the same parents' structure - Google Patents
The core filled composite material of opposite hemispherical Shell scapus born of the same parents' structure Download PDFInfo
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- CN105799231B CN105799231B CN201610149385.7A CN201610149385A CN105799231B CN 105799231 B CN105799231 B CN 105799231B CN 201610149385 A CN201610149385 A CN 201610149385A CN 105799231 B CN105799231 B CN 105799231B
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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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products 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 form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
- B32B3/20—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side of hollow pieces, e.g. tubes; of pieces with channels or cavities
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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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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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
- 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
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/56—Damping, energy absorption
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses the core filled composite materials of opposite hemispherical Shell scapus born of the same parents' structure, between first panel and second panel, it is provided with several energy-absorbing column born of the same parents' units being made of two Loadings On Hemispherical Shells setting up and down, the open end of two Loadings On Hemispherical Shells is connect with the medial surface of first panel and second panel respectively, is connected or is contacted between upper and lower two Loadings On Hemispherical Shells.The core filled composite material of the present invention, can play progressive energy-absorbing advantage, and avoid the higher negative effect generated to support construction of other columns born of the same parents' type internal stress peak value.Its deformation energy-absorbing of spherical shell column born of the same parents structure does not have threshold value, and can pass through column cell space for different types of shock and vibration load deforms absorption energy；It deforms in endergonic process, column born of the same parents' structure absorbs impact the internal stress of load and gradually increased with deformation, is not in larger internal stress peak value；Making easy to process is easy to carry out industrialized production.
Description
Technical field
The present invention relates to energy-absorption type core filled composite materials, especially arrange the column cell type of formation in opposite directions by two Loadings On Hemispherical Shells
The core filled composite material of opposite hemispherical Shell scapus born of the same parents' structure of endergonic structure.
Background technology
Industrial production, equipment manufacturing, space flight and aviation and military protection etc. for lightweight, high-strength, energy-absorbing, vibration damping it is novel
Composite material demand is higher and higher.Sandwich material be usually by two layers high intensity thin panel and intermediate lightweight core layer by welding or
Splicing etc. forms, it had not only been combined, and panel material is counter-bending, stretch capability is strong and the advantage of core material plastic deformation energy-absorbing, but also
The advantages that sandwich structure lightweight, specific strength are high, specific stiffness is big and energy-obsorbing and damping is utilized, is a kind of function integration structural wood
Material, is rapidly developed in above-mentioned field.
Sandwich material can be divided into 1, polymer core filled composite material according to the type of sandwich layer, and 2, foam aluminium sandwich composite wood
Material, 3, the three classes such as types such as truss core material.
1, polymer core filled composite material：Polymer foams are a kind of most common core materials, mainly there is polychlorostyrene
Ethylene（PVC）, polystyrene（PS）, polyurethane（PU）, Polymethacrylimide（PMI）, polyetherimide（PEI）And propylene
Nitrile-styrene（SAN or AS）[8].Wherein, hard polyaminoester（RPUR）Foamed material can pass through itself significant Plastic Compression
Contracting mitigates impact, reduces stress amplitude, and within the scope of certain strain rate, with the increase of strain rate, yield strength gradually increases
Add.But polymer foams low strength, the ess-strain rate under impact load is small, the energy-absorbing rate under same thickness size
Small, energy absorption performance is relatively limited.
2, foam aluminium sandwich composite material：Foam aluminium sandwich composite material is in one layer of bubble of double layer of metal panel central filler
The composite endergonic material of foam aluminum material.This kind of composite material is often used the materials such as steel plate, aluminium alloy plate as upper and lower panel to carry
High structural bearing intensity, and using the relatively low feature of foamed aluminium material shock wave impedance, plasticity is generated under Impact Load
Deformation is compacted, to greatly weaken stress intensity of wave.Although foamed aluminium is increasingly closed by people as energy-absorbing material
Note, but the stabilization of its energy absorption performance is affected by pore-size distribution, when aperture may lead to regional area when being unevenly distributed
There is the phenomenon that straining relatively low but stress concentration, local stress has been more than the yield stress of foamed aluminium basis material, is eventually led to
The Analysis of " Plastic Instability " of early stage, it is difficult to keep stress in deformation process uniform, stable, and foamed aluminium material higher price, also limit
Make its application range.
3, truss core material.
Lattice material is a kind of porous material with ordered micro structure, its main feature is that volume density is small, large specific surface area, ratio
Mechanical property height etc..As sandwich layer truss core material under explosion wave load action due to structure dynamics unstability
Huge plastic deformation is generated, can effectively dissipate shock wave energy, thus have good explosion-proof impact property.According to point
Truss core composite material, can be divided into two and three dimensions truss core material by the structure type of battle array material.Two-dimensional lattice sandwich
Its core structure of material is mainly stretched by plane polygon through vertical plane direction.Its sandwich layer knot of three-dimensional lattice sandwich material
Structure is mainly formed by microcomponents such as bar, plate, column born of the same parents as centainly regularly arranged.
（1）Topology configuration sandwich material
Topology configuration sandwich material is the three-dimensional lattice sandwich material using bar as microcomponent, be one kind by model molecule point
Battle array configuration and design contain static determinacy/statically indeterminate porous ordered micro structure material, common geometric configuration includes Kagom é
Structure, pyramid structure, tetrahedral structure etc..Topology configuration lattice material its specific strength, specific stiffness are higher than common honeycomb material
Material, and bearing capacity is stronger, while under Impact Load, it can be larger by the buckling of sandwich layer rod piece, layering, fracture etc.
Deformation effectively absorb shock wave energy.
When unit mass impact energy is larger, tetrahedral structure sandwich material is more more advantageous than cellular sandwich material,
Especially pyramid structure sandwich material energy absorption characteristics are better.But the difficulty of processing of topology configuration sandwich material is big, especially
It is that the processing complexity of pyramid structure sandwich material restricts its extensive use.
（2）Ripple sandwich material
Ripple sandwich material is a kind of common three-dimensional lattice sandwich material, and sandwich layer is constituted by microcomponent of plate, only
Regularly arranged along a direction, longitudinal section is similar to corrugated, then compound upper layer and lower layer lightweight panels.Ripple sandwich material have than
The feature that intensity is high, specific stiffness is high, it is also with good performance in fire-proof and thermal-insulation, impact resistance, antiknock etc..Compared to other
Core filled composite material, ripple core filled composite material also have the characteristics that bearing capacity is strong in addition to the capability of antidetonance is good.Ripple sandwich
Deformation under the conditions of composite material high-speed impact is relatively small, and peak load is relatively large, and the energy efficiency of absorption is not high.
（3）Column born of the same parents' sandwich material
Column born of the same parents are similar to thin-wall metal pipe, are a kind of low cost, efficient buffering energy-absorbing configuration, as energy-absorbing material,
Column born of the same parents' core filled composite material sandwich layer is made of the column born of the same parents' unit arranged according to certain rules, and in upper and lower compound one layer of thin panel.
Panel material has higher flexural strength and tensile strength, can bear Tensile or Compressive Loading in the face caused by moment of flexure, ensures
Composite material has higher bearing strength.Column born of the same parents' material is mainly under Impact Load, by being significantly plastically deformed
Shock strength is effectively unloaded, to achieve the effect that energy-absorbing buffering.It has large deformation carrying under Blast Loads
Stablize, deformation time length, compress the advantages that range is long, and can be notable by porous materials such as filled polyurethane foam, foamed aluminiums
Improve energy absorption performance.Compared to traditional structural materials, column born of the same parents' core filled composite material has lightweight, specific strength height, specific stiffness height etc.
Feature, and its antiknock damping property is excellent.The infrastructure element of column born of the same parents' core filled composite material energy-absorbing property is column born of the same parents' unit, root
According to the geometric configuration of unit, can be classified as：Square tube and pipe unit, more born of the same parents' pipe units, spherical shell body unit and combination geometry
Configurational unit.
The unit of both configurations of square tube and pipe is earliest, the most widely used two kinds of columns born of the same parents' unit of research.At present,
It is widely used in the absorbing energy layer of various transport facilitys as the absorbing energy layer of basic building block using the unit of this two classes configuration.Gold
Square tube will be significantly better than by belonging to the energy absorbing efficiency of thin-wall circular tube.It is internally ribbed in square tube or pipe, constitute double born of the same parents, three categories of overseas Chinese, four born of the same parents etc.
More born of the same parents' units.Honeycomb sandwich structure is constituted if continuous more born of the same parents' pipes.Under Impact Load, can be managed by more born of the same parents/
The larger deformations such as honeycomb sandwich layer buckling effectively absorb shock wave energy.Its energy absorption performance has than square tube and pipe significantly to be carried
It is high.Above-mentioned square tube, pipe, the be badly deformed energy-absorbing value of column born of the same parents' unit of more born of the same parents/honeycombs are high, but there are a distorting loads
" threshold value " --- i.e. for column born of the same parents' unit of a certain determination, applied shock load must reach on certain numerical value, and column born of the same parents are single
Member can be just plastically deformed, to realize the absorption of impact energy.When external loads are relatively small, load peak value may
Pipe deformation energy-absorbing " threshold value " cannot be reached, cause pipe and indeformable energy-absorbing, column born of the same parents unit can only to additional impact load
Load, intermal force are played, energy-absorbing function cannot be played substantially.
（3）Combine geometry unit
Square tube and pipe etc. and hollow cone, the combined column born of the same parents unit of spherical shell are commonly referred to as geometry unit.Mesh
It is energy-absorbing unit that hollow metal cylinder body+conulite+spherical shell structure is combined that preceding research is more.Studies have shown that in axis
The energy absorption performance of this combination geometric configuration is higher than formed two parts configuration respectively energy absorption capacity under to Impact Load
The sum of can, and as axial impact speed increases, the energy absorption performance for combining geometric configuration is also continuously improved.
This structure can be largely overcoming limitation of the column born of the same parents' element deformation energy-absorbing to impact load " threshold value ".But
It is that there are problems to be：First, spatial geometric shape is more complex, preparation process is complicated, processing difficulties, and cost is higher；Second is that appointing right
There are larger load " threshold value " limitations：If it is hemispherical Shell+pipe combination, energy-absorbing value is very big under the state that is badly deformed,
But in Practical Project, since the characteristics of impact load is that action time is short, the then rapid decaying greatly of initial stage load.Therefore, when
After hemispherical Shell deforms energy-absorbing first, due to reducing rapidly for impact load energy, load peak value may not be able to reach pipe deformation
Energy-absorbing " threshold value " leads to pipe and indeformable energy-absorbing, so that integral energy-absorbing structure energy absorbing efficiency cannot be not fully exerted,
Energy absorbing efficiency significantly reduces.
Invention content
The present invention provides a kind of energy-absorbing density for various core filled composite material above shortcomings in the prior art
The core filled composite material of opposite hemispherical Shell scapus born of the same parents' structure of high, progressive energy-absorbing.
Technical scheme of the present invention：The core filled composite material of opposite hemispherical Shell scapus born of the same parents' structure, it is characterised in that：Including
One panel and second panel are provided with several energy-absorbing column born of the same parents' units, each energy-absorbing column between first panel and second panel
Born of the same parents' unit is made of two Loadings On Hemispherical Shells setting up and down, the open ends of two Loadings On Hemispherical Shells respectively with first panel and the second face
The medial surface of plate connects, and is connected or contacts between upper and lower two Loadings On Hemispherical Shells.
Further feature is：It is provided with cushion block between upper and lower two Loadings On Hemispherical Shells, leads between upper and lower two Loadings On Hemispherical Shells
Cushion block is crossed to be connected.
The cushion block is overall structure, and two Loadings On Hemispherical Shells up and down of each energy-absorbing column born of the same parents' unit are connected by cushion block.
Connector is set between upper and lower two Loadings On Hemispherical Shells.
The connector is revolving body, is pipe or cylinder.
The connector is regular quadrangle or regular pentagon or regular hexagon.
The central axis of upper and lower two Loadings On Hemispherical Shells coincides.
Between the two Loadings On Hemispherical Shells and open end of two Loadings On Hemispherical Shells respectively with first panel and second panel it
Between or two between Loadings On Hemispherical Shell and cushion block, pass through welding, riveting, bonding or build-in and connect.
The Loadings On Hemispherical Shell is made of several pieces of curved bodies, and curved body is overlapped in the same direction between each other.
In gap between each upper and lower adjacent two pieces of curved bodies of Loadings On Hemispherical Shell, packing material is added.
The core filled composite material of the opposite hemispherical Shell scapus born of the same parents' structure of the present invention has following special compared with the existing technology
Sign：
1, progressive energy-absorbing advantage is played, and it is higher to support construction generation to avoid other columns born of the same parents' type internal stress peak value
Negative effect.Its deformation energy-absorbing of spherical shell column born of the same parents structure does not have threshold value, i.e., by the impact load to be deformed, and power-change
Shape feature have it is gradual, for different types of shock and vibration load can pass through column cell space deformation absorb energy.Together
When, it deforms in endergonic process, column born of the same parents' structure absorbs impact the internal stress of load and gradually increased with deformation, is not in larger interior
Peak stress.
2, easy to process.Compared to the complex space curved surfaces of fabricated structure, Loadings On Hemispherical Shell may be used punching press, pour into a mould, cut
It techniques, the assembling of opposite Loadings On Hemispherical Shell such as cuts and the modes such as welding, riveting, bonding, build-in may be used, be easy to carry out industrial metaplasia
Production.
Description of the drawings
Fig. 1 is the first example structure schematic diagram of the core filled composite material of the present invention；
Fig. 2 is second of example structure schematic diagram of core filled composite material of the present invention；
Fig. 3 is the third example structure schematic diagram of the core filled composite material of the present invention；
Fig. 4 is load-displacement curve of the present invention under impact load.
Specific implementation mode
In Fig. 1, the core filled composite material of the opposite hemispherical Shell scapus born of the same parents' structure of the present invention, including first panel 1 and second
Panel 2 is provided with several energy-absorbings column born of the same parents unit 3, energy-absorbing column born of the same parents unit 3 is by upper between first panel 1 and second panel 2
Two Loadings On Hemispherical Shells 4 of lower setting are constituted, the open ends of two Loadings On Hemispherical Shells 4 being oppositely arranged respectively with first panel 1 and the
The medial surface of two panels 2 connects, and is connected or contacts between two Loadings On Hemispherical Shells 4.The shape of Loadings On Hemispherical Shell 4 is hemispherical, or
Curved shape, such as conventional parabola, quadratic function curve；The central axis of two Loadings On Hemispherical Shells 4 overlaps, that is, passes through hemisphere
The axis on 4 vertex of shell coincides, and Loadings On Hemispherical Shell 4 is connected or is contacted by curved surface vertex.
First panel 1 and second panel 2 are metal material or non-metallic material, such as fiber reinforcement organic polymer material
Expect the composite material prepared；Loadings On Hemispherical Shell 4 is metal material or non-metallic material, such as fiber reinforcement high-molecular organic material
Or high-molecular organic material；Loadings On Hemispherical Shell 4 can be thin-walled hollow Loadings On Hemispherical Shell, can also be thin-walled hollow semicircle tube body.Together
One Loadings On Hemispherical Shell 4 can be same radius of curvature, can also be curvature radius.Between two Loadings On Hemispherical Shells 4 and two and half
The open end of global shell 4 between first panel 1 and second panel 2, is attached respectively by welding, riveting or bonding etc.；
Loadings On Hemispherical Shell 4 can also be with first panel 1 or the whole modes machine-shaping such as punching press or casting of second panel 2.
Gap between neighbouring two pieces of Loadings On Hemispherical Shells 4（Hole）Between, be added packing material, can insert metal,
Non-metallic filler material, to improve its energy-absorbing efficiency.
Be connected directly or contact by vertex between upper and lower two Loadings On Hemispherical Shells 4, can also two Loadings On Hemispherical Shells 4 it
Between cushion block 5 is set, be connected by cushion block 5 between upper and lower two Loadings On Hemispherical Shells 4.There are many kinds of the structures of cushion block 5, as shown in the figure
Cushion block 5 be overall structure, two Loadings On Hemispherical Shells 4 up and down of each energy-absorbing column born of the same parents unit 3 are connected by same cushion block 5,
Whole energy-absorbing column born of the same parents units 3 connect into an overall structure by the cushion block 5, can improve integrally-built cushion performance etc..Pad
Block 5 can also be single structure, i.e. two Loadings On Hemispherical Shells 4 up and down of each energy-absorbing column born of the same parents unit 3 are connected by cushion block 5, but
The cushion block 5 of each energy-absorbing column born of the same parents unit 3 is not connected to, and forms split type force structure, each 3 independent stress of energy-absorbing column born of the same parents unit.
The cushion block 5 is common plate, by welding, the modes such as rivets, is bonded or embedded into and be connected with two Loadings On Hemispherical Shells 4.Upper
Cushion block 5 is set between lower two Loadings On Hemispherical Shells 4, is conducive to process location and installation, is conducive to opposite spherical shell while deforming energy-absorbing.
As shown in Fig. 2, can also be connected by the way that connector 6 is arranged between upper and lower two Loadings On Hemispherical Shells 4, connector 6 is
Revolving body, can symmetrical stress, such as pipe, round platform or cylinder structure.Alternatively, connector 6 is regular polygon, such as square
（Regular quadrangle）Or regular pentagon or regular hexagon etc., by welding, the modes and upper and lower two and half such as rivet, be bonded or embedded into
Global shell 4 is connected.
The dynamic response process of spherical shell body unit is sufficiently complex under impact loading, under the conditions of xial feed, spherical shell
Body deformation is divided into three processes：Part flattening, forms asymmetric leaf at axial symmetry indent.Global shell under impact loading is dynamic
The problems such as mechanical response is a complex process, it includes material nonlinearity, geometrical non-linearity and time effect.Global shell
Structure can be by Geometrical Bending come the shock wave energy that dissipates under shock.And relative to knots such as pipe, square tubes
Structure, deformation energy-absorbing there is no threshold value, i.e., it is by the impact load to be deformed, and power-deformation characteristics have it is gradual, can
Applied to more extensive field.Multiple-layer stacked curved surface multistage energy-absorption type column born of the same parents structure preferably overcome simultaneously compression range by
The limitation of the limitation of global shell radius.Thus it can be applied to more extensive field.
As shown in figure 3, the present invention two Loadings On Hemispherical Shells 4 up and down, may be used multilayer curved body superposition structure, i.e., by
Several pieces of curved bodies 41 are constituted, and the overlapping in the same direction between each other of curved body 41 forms Loadings On Hemispherical Shell 4；Each Loadings On Hemispherical Shell 4 is upper and lower
Gap between adjacent two pieces of curved bodies 41（Hole）It is interior, packing material is added, especially light porous packing material can be with
Insert metal, non-metallic filler material（Such as polyurethane foam, foamed aluminium）, to improve its energy-absorbing efficiency.Upper and lower two hemisphere
Between shell 4, be connected with each other or be connected by cushion block 5 or connector 6, connector 6 is revolving body, can symmetrical stress, such as
The structures such as pipe, round platform or cylinder.Alternatively, connector 6 is regular polygon, such as square（Regular quadrangle）Or regular pentagon, or
Regular hexagon etc. by welding, the modes such as rivets, is bonded or embedded into and be connected with two Loadings On Hemispherical Shells 4.
As shown in figure 4, energy-absorbing column born of the same parents' structure of the present invention（Opposite Loadings On Hemispherical Shell is to topmast dagger born of the same parents' structure）, in impact lotus
Load-displacement curve figure under carrying is substantially not present load it can be seen from the figure that it is a progressive process that it, which deforms energy-absorbing,
" threshold value " limits, and internal stress peak load is only 5.0KN）.
Global shell dynamic response under impact loading is a complex process, it includes material nonlinearity, geometry
The problems such as non-linear and time effect.Global shell structure can be by Geometrical Bending come the punching that dissipates under shock
Hit wave energy.And relative to structures such as pipe, square tubes, deformation energy-absorbing does not have threshold value, i.e., by the impact load just to will produce change
Shape, and power-deformation characteristics have it is gradual, can be applied to more extensive field.Opposite Loadings On Hemispherical Shell is to topmast dagger born of the same parents
Structure preferably overcomes compression range to be limited to by the limitation of global shell radius simultaneously.It thus can be applied to more extensive
Field.
Meanwhile the structures such as pipe will produce larger internal stress " peak value ", this can be transmitted to installation core filled composite material
Support construction, becomes its new " impact " load, and energy-obsorbing and damping effect reduces.And the opposite Loadings On Hemispherical Shell of the present invention is to topmast dagger
Peak load can be then greatly lowered in born of the same parents' structure.
Finally, it should be noted that technical side the above examples are only used to illustrate the technical scheme of the present invention and are not limiting
Case, although applicant describes the invention in detail with reference to preferred embodiment, those skilled in the art should manage
Solution, those are modified or replaced equivalently technical scheme of the present invention, without departing from the objective and range of the technical program,
It is intended to be within the scope of the claims of the invention.
Claims (7)
1. the core filled composite material of opposite hemispherical Shell scapus born of the same parents' structure, it is characterised in that：Including first panel（1）And second panel
（2）, in first panel（1）And second panel（2）Between, it is provided with several energy-absorbing column born of the same parents' units（3）, each energy-absorbing column born of the same parents list
Member（3）By two Loadings On Hemispherical Shells setting up and down（4）It constitutes, two Loadings On Hemispherical Shells（4）Open end respectively with first panel（1）
And second panel（2）Medial surface connection, upper and lower two Loadings On Hemispherical Shells（4）Between be connected, Loadings On Hemispherical Shell（4）It is thin-walled hollow
Structure；
Upper and lower two Loadings On Hemispherical Shells（4）Between be provided with cushion block（5）, upper and lower two Loadings On Hemispherical Shells（4）Between pass through cushion block（5）Phase
Connection；The cushion block（5）It is overall structure, each energy-absorbing column born of the same parents' unit（3）Two Loadings On Hemispherical Shells up and down（4）Pass through cushion block
（5）It is connected；
Two Loadings On Hemispherical Shells（4）Between and two Loadings On Hemispherical Shells（4）Open end respectively with first panel（1）With the second face
Plate（2）Between or two Loadings On Hemispherical Shells（4）With cushion block（5）Between, it is connected by welding, riveting, bonding or build-in；
The Loadings On Hemispherical Shell（4）, by several pieces of curved bodies（41）It constitutes, curved body（41）Between be overlapped in the same direction.
2. the core filled composite material of opposite hemispherical Shell scapus born of the same parents' structure according to claim 1, it is characterised in that：Upper and lower two
Loadings On Hemispherical Shell（4）Central axis coincide.
3. the core filled composite material of opposite hemispherical Shell scapus born of the same parents' structure according to claim 1 or claim 2, it is characterised in that：Each
Loadings On Hemispherical Shell（4）Upper and lower adjacent two pieces of curved bodies（41）Between gap in, be added packing material.
4. the core filled composite material of opposite hemispherical Shell scapus born of the same parents' structure, it is characterised in that：Including first panel（1）And second panel
（2）, in first panel（1）And second panel（2）Between, it is provided with several energy-absorbing column born of the same parents' units（3）, each energy-absorbing column born of the same parents list
Member（3）By two Loadings On Hemispherical Shells setting up and down（4）It constitutes, two Loadings On Hemispherical Shells（4）Open end respectively with first panel（1）
And second panel（2）Medial surface connection, upper and lower two Loadings On Hemispherical Shells（4）Between be connected；
Upper and lower two Loadings On Hemispherical Shells（4）Between connector is set（6）；The connector（6）It is revolving body；
Two Loadings On Hemispherical Shells（4）Between and two Loadings On Hemispherical Shells（4）Open end respectively with first panel（1）With the second face
Plate（2）Between or two Loadings On Hemispherical Shells（4）With connector（6）Between, it is connected by welding, riveting, bonding or build-in；
The Loadings On Hemispherical Shell（4）, by several pieces of curved bodies（41）It constitutes, curved body（41）Between be overlapped in the same direction.
5. the core filled composite material of opposite hemispherical Shell scapus born of the same parents' structure according to claim 4, it is characterised in that：Each hemisphere
Shell（4）Upper and lower adjacent two pieces of curved bodies（41）Between gap in, be added packing material.
6. the core filled composite material of opposite hemispherical Shell scapus born of the same parents' structure, it is characterised in that：The folder of opposite hemispherical Shell scapus born of the same parents' structure
Core composite material, it is characterised in that：Including first panel（1）And second panel（2）, in first panel（1）And second panel（2）
Between, it is provided with several energy-absorbing column born of the same parents' units（3）, each energy-absorbing column born of the same parents' unit（3）By two Loadings On Hemispherical Shells setting up and down
（4）It constitutes, two Loadings On Hemispherical Shells（4）Open end respectively with first panel（1）And second panel（2）Medial surface connection, on
Lower two Loadings On Hemispherical Shells（4）Between be connected；
Upper and lower two Loadings On Hemispherical Shells（4）Between connector is set（6）；The connector（6）It is regular quadrangle or regular pentagon,
Or regular hexagon；
Two Loadings On Hemispherical Shells（4）Between and two Loadings On Hemispherical Shells（4）Open end respectively with first panel（1）With the second face
Plate（2）Between or two Loadings On Hemispherical Shells（4）With connector（6）Between, it is connected by welding, riveting, bonding or build-in；
The Loadings On Hemispherical Shell（4）, by several pieces of curved bodies（41）It constitutes, curved body（41）Between be overlapped in the same direction.
7. the core filled composite material of opposite hemispherical Shell scapus born of the same parents' structure according to claim 6, it is characterised in that：Each hemisphere
Shell（4）Upper and lower adjacent two pieces of curved bodies（41）Between gap in, be added packing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610149385.7A CN105799231B (en) | 2016-03-16 | 2016-03-16 | The core filled composite material of opposite hemispherical Shell scapus born of the same parents' structure |
Applications Claiming Priority (1)
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| CN106969678B (en) * | 2017-03-17 | 2019-04-09 | 武汉大学 | Telescopic flexible rectangular pyramid sandwich structure for underwater explosion energy dissipating |
| CN107100268B (en) * | 2017-04-10 | 2019-01-11 | 东南大学 | A kind of space lattice material based on curved bar cell element |
| CN107697470B (en) * | 2017-04-24 | 2020-06-05 | 常德金德镭射科技股份有限公司 | Shock-resistant packaging box |
| CN112324827B (en) * | 2020-10-30 | 2022-06-24 | 西北工业大学 | Double-layer pyramid type light vibration reduction metamaterial lattice structure |
| CN112483569B (en) * | 2020-11-12 | 2021-11-26 | 南京航空航天大学 | Buffer energy-absorbing bionic light sandwich structure |
| CN114623317B (en) * | 2020-12-11 | 2023-03-31 | 上海微电子装备（集团）股份有限公司 | Periodic structure, heat insulation device and wafer bonding device |
| CN112497856B (en) * | 2020-12-30 | 2023-03-03 | 中国人民解放军陆军勤务学院 | Multistage series connection column cell body impact load energy absorption structure |
| CN113085282B (en) * | 2021-04-06 | 2023-06-02 | 深圳市仙姿生物科技有限公司 | Synchronous self-adjusting composite film capable of preventing layering tearing |
| CN113685472B (en) * | 2021-08-10 | 2022-06-07 | 西安交通大学 | Multistable pressure-torsion composite energy absorption structure |
| CN114441082B (en) * | 2022-01-05 | 2024-04-19 | 中国人民解放军国防科技大学 | Omnidirectional explosion air impact wave energy passive measurement device and measurement method |
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Effective date of registration: 20190429 Address after: 401311 No. 20, North Road, University City, Shapingba District, Chongqing Patentee after: PLA Military Service College Address before: 400037 Chongqing Shapingba District Xinqiao Hospital Nanyuan C Block 2-1 Patentee before: Deng Anzhong |