CN104443346A - Large-deformation composite material with flexible cellular structure and preparation method of large-deformation composite material - Google Patents
Large-deformation composite material with flexible cellular structure and preparation method of large-deformation composite material Download PDFInfo
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Abstract
The invention discloses a large-deformation composite material with a flexible cellular structure and a preparation method of the large-deformation composite material. According to the large-deformation composite material, glass fiber cloth and flexible epoxy resin which need to greatly deform and are used for single-cell cell walls are molded according to a stressing property of the large deformation of the cellular structure; a large deformation function is realized by adopting the flexible epoxy resin; glass fibers and epoxy resin, which have connection effects, of the cell walls are molded; carbon fibers and epoxy resin which have connection effects on single cell lines are molded so that the high rigidity is obtained; and the requirements on bearing out-plane load and keeping the shape of the cellular structure in deformation are met. According to the method, primary paving, and primary curing and molding are adopted, and interface defects caused by secondary paving and curing are avoided; and single-cell inter-line binding force is improved, the process is simplified and the cost is reduced. The composite material with the flexible cellular structure, which is prepared by adopting the method, can be applied to a flexible supporting body of a morphing wing skin or a morphing structure.
Description
Technical field
The present invention relates to a kind of flexible cell structure composite material realizing large deformation and preparation method thereof, can be used for skin of morphing wing or need the supporter of variant structure of large deformation.
Background technology
Morphing and variant structure are morphing aircraft important component parts of future generation, are current new study hotspots both domestic and external.
Morphing refers to that the parameter such as cross-sectional area, front and rear edge camber, the span, sweepback angle of wing can environmentally change or the different wing carrying out changing of task.The control surface of conventional hinged-type or high lift device, as wing flap, aileron etc., thisly change wing geometric shape by separating component, can not be called as morphing.Morphing combines the aerofoil profile under different flying condition, changes aeroperformance and completes different tasks, thus improve airworthiness and tasks carrying efficiency, and have certain advantage in loss of weight, noise reduction, reduction energy consumption by the change of flight course aerofoil profile.In morphing development under the new situation, traditional structural materials is as large because of rigidity in metallic material, glass fibre and carbon fibre reinforced composite, cannot meet the development need of morphing large deformation to covering.Covering for morphing must have certain flexibility to realize smooth transition between different airfoil profiles, can bear the aerodynamic loading in flight course simultaneously.Therefore should consider various factors when carrying out covering design, enough deflections needed for suppleness generation should be had, require that again covering can not be too soft to bear certain face external load, the requirement to drive mechanism energy will be reduced simultaneously.
Based on the particular/special requirement of flexible covering, scientific research personnel a large amount of both at home and abroad, from different angles, proposes the large deformation flexible covering that application is multi-form.One is embed shape-memory alloy wire in traditional resin matrix composite, by the excitation to shape-memory alloy wire, realizes the flexural deformation of covering; Stop the excitation to shape memory and metal, then covering returns to principle shape under the effect of composite material elastic-restoring force.But because shape-memory alloy wire utilizes energising resistance heat to encourage, in the process of motivation, easily produce gap at shape-memory alloy wire and composite material base contact level even depart from, cause encouraging unsuccessfully, cannot distortion be produced.Therefore how improving the subject matter that interracial contact intensity between shape-memory alloy wire and matrices of composite material and fatigue property thereof are such flexible coverings, is also key factor of its development of restriction.Two is that emerging a kind of material is called shape-memory polymer in recent years.With the covering that such material makes, can need, when changing, the softness then become is heated to shape-memory polymer in aerofoil profile easily deformable; Cool it when bearing load, then shape-memory polymer can keep aerofoil profile and have enough rigidity, and heating can recover original form again.From current research, such material is only suitable for the flexural deformation of morphing, and has difficulties at energisation mode.Three is that first such covering is proposed by Univ Maryland-Coll Park USA related researcher with flexible cell structure for supporter take elastomeric material as the novel flexible covering on top layer.Such covering performance determines primarily of flexible born of the same parents' shape supporter, and the resilient membrane of low modulus, large sstrain is only to improve smooth aerodynamic configuration.
The flexible covering formed due to cell structure and flexible skin has that quality is light, the outer bending stiffness in face greatly and can large deformation be realized, be focal point in all kinds of flexible covering.Cell structure is such covering main research, the cell structure of the obtained large deformation of current proposition, mainly contain: the flexible cell structure of hexagon, because this class formation Poisson's ratio is non-vanishing, when namely stretching in face, a direction is extended, vertical direction then produces contraction with it, is the unfavorable factor limiting its application.Hexagon cell structure is when being out of shape in addition, and local exists large strain, requires high to outside force; Draw swollen cell structure, such cell structure can both direction stretch simultaneously thus obtain large deformation in face, and the both direction of such cell structure in deformation process in face need be out of shape simultaneously; The flexible cell structure of zero Poisson's ratio, combined by hexagon born of the same parents and indent hexagon born of the same parents, as shown in Figure 1, during the distortion of such cell structure, stretch in an interior direction face to face, and direction vertical with it keeps original size not change, thus zero Poisson's ratio cell structure is called as, be a class cell structure of current most study, such cell structure is used on morphing, can realize the flexural deformation of wing, the span is stretched.Research contents mainly concentrates on based on the theoretical investigation of born of the same parents' shape, relation between cell structure and mechanical property, explores the physical dimension of cell structure to the impact of mechanical property parameters.For flexible cell structure implementation and Study on Preparation less, existing test exemplar mainly concentrates on use for laboratory in the correctness of proof theory, as adopt 3D print photosensitive resin, engineering plastics; Adopt the one-shot forming etc. of silaatic.Adopt cell structure prepared by these materials, because be material in total formula same, MATRIX STIFFNESS is large, easily ruptures in deformation process, is thus difficult to obtain large deformation.Although adopt the cell structure prepared of silaatic to obtain large deformation, because total be flexible, can not bearing surface external load, and elongation in face in deformation process, limit vertical with it then produces contraction.These cell structures all can not fully meet theory deformation to scale requirement in verification experimental verification, and cannot be applied in Practical Project, are the bottlenecks of such investigation of materials of restriction development.
Summary of the invention
Goal of the invention: for above-mentioned prior art, proposes a kind of large deformation flexible cell structure composite material, makes it have good large deformation characteristic, can bear external load again and keep the form of cell structure.A kind of method preparing above-mentioned large deformation flexible cell structure composite material is proposed simultaneously.
Technical scheme: a kind of large deformation flexible cell structure composite material, comprises some unit cells capable, is connected between adjacent described unit cell is capable by rigid carbon-fiber composite material; Described unit cell is capable comprises some hexagon single cell structures and indent hexagon unit cell transition structure supporting with it, and described hexagon single cell structure and indent hexagon unit cell transition structure successively interval are arranged; Wherein, described hexagon single cell structure is double-layer structure, and six cell walls of internal layer are glass fibre, and it is outer that four cell wall flexible-epoxies that need be out of shape soak into shaping rear formation, and it is outer that all the other two cell wall epoxy resin soak into shaping rear formation.
Further, described flexible-epoxy comprises following component, in mass fraction:
6350 flexible-epoxy 1.8-2.2 parts
1 part, A70 curing agent.
Further, described epoxy resin comprises following component, in mass fraction:
E51 epoxy resin 0.8-1.2 part
3060 1 part, curing agent.
Further, described rigid carbon-fiber composite material soaks into epoxy resin by carbon cloth and forms type.
A kind of large deformation flexible cell structure composite material and preparation method thereof, comprises the steps:
Step 1), prepare mould: according to the capable structure of unit cell of large deformation flexible cell structure composite material, the pentagon termination mould prepared hexagon single cell structure mould, indent hexagon unit cell transition structure mould and mate with described indent hexagon unit cell transition structure mould;
Step 2), brushing mold release on mould also dries;
Step 3), cutting cloth of reinforcement fibers: according to the glass fabric needed for the size cutting of described single cell structure mould and pentagon termination mould, according to the carbon cloth between the capable structure of size cutting unit cell of flexible cell structure composite material;
Step 4), modulation resin: by 6350 flexible-epoxies, A70 curing agent by ratio of quality and the number of copies (1.8 ~ 2.2): 1 modulation obtains described flexible-epoxy; By E51 epoxy resin, 3060 curing agent by ratio of quality and the number of copies (0.8 ~ 1.2): 1 modulation obtains described epoxy resin;
Step 5), paving unit cell mould: be wound around 6 ~ 8 layers of glass fabric and tighten up on hexagon single cell structure mould, then, the four edges being out of shape cell wall is needed in corresponding single cell structure in described hexagon single cell structure mould, soak into aftershaping with flexible-epoxy, all the other two limit epoxy resin of described hexagon single cell structure mould soak into aftershaping; The four edges paving of pentagon termination mould except the outer side edges of termination 6 ~ 8 layers of glass fabric also tighten up, then, two limits being out of shape cell wall are needed in corresponding single cell structure in the mould of described pentagon termination, soak into aftershaping with flexible-epoxy, in the mould of described pentagon termination, all the other two limit epoxy resin of paving glass fabric soak into aftershaping;
Step 6), the capable structure mold of combination unit cell: according to required large deformation flexible cell structure composite gauge, some hexagon single cell structure moulds good for paving and indent hexagon unit cell transition structure mould are arranged at interval successively, form the capable structure mold of strip unit cell, and by two supporting two ends being arranged on the capable structure mold of described unit cell of pentagon termination mould;
Step 7), rigid carbon-fiber composite material between the capable structure mold of unit cell described in paving: get a capable structure mold of unit cell combining as the first row, respectively paving 8 ~ 10 layers of carbon cloth on its both sides, and by step 4) epoxy resin modulated soaks into; Get a capable structure mold of unit cell again as the second row, by its with the first row while be adjacent to, at the carbon cloth of the same number of plies of another side paving of the second row, and by step 4) epoxy resin that modulates soaks into; According to required large deformation flexible cell structure composite gauge, by the capable structure mold of all the other unit cells of same method paving;
Step 8), curing molding: compressed by the surrounding pressing plate of the capable structure mold of all unit cells good for paving, then put into baking oven and be warming up to 80 ~ 100 DEG C, solidifies 8 ~ 12 hours;
Step 9), take out the mould solidified, open pressing plate and the demoulding, obtain required large deformation flexible cell structure composite material.
Further, described hexagon single cell structure mould, indent hexagon unit cell transition structure mould and pentagon termination mould all adopt LY12 aluminum alloy to be prepared from.
Beneficial effect: in large deformation flexible cell structure composite material of the present invention, the capable structure of unit cell is combined by hexagon single cell structure and indent hexagon unit cell transition structure interval, according to the mechanical characteristic of cell structure, to needing the unit cell cell wall producing large deformation to adopt flexible resin and glass fibre molding with cloth under external force, ensure that cell wall has certain flexibility; To unit cell cell wall in the ranks adopt epoxy resin and glass fibre shaping, ensure the rigidity of thin-walled; Be connected with epoxy resin by carbon fiber again between unit cell is capable, ensure unit cell capable junction rigidity, and version remain unchanged under external force condition, certain face external load can be born simultaneously; Under the effect of external force stretching/compressing, there is extension/contraction along stretching/compressing direction, but then remain unchanged in the size perpendicular to stretching/compressing direction due to hexagon and the hexagonal special construction of indent, thus reach the large deformation effect of zero Poisson's ratio.First combine, then one-step solidification moulding in paving on mould time shaping.Be flexible structure because unit cell is capable, unit cell is in the ranks for being rigidly connected, and namely therefore made cell structure has good large deformation characteristic, can bear external load again and keep the form of cell structure.Adopt the process of one-shot forming solidification, the cell structure interface bond strength prepared is high, can meet the application demand of variant structure to large deformation.
The flexible cell structure adopting this method to prepare achieves the demand of variant structure to large deformation, solves in research at present and only has theoretical investigation, the technological problems that cannot prepare; Choose two kinds of different resins and fortifying fibre in process of preparing dexterously, both met the requirement of variant structure to flexible large deformation, achieve again and bear certain face external load object; Junction between unit cell is capable adopts epoxy resin-base, ensure that unit cell capable between Joint strenght and reliability; Adopt a paving, curing molding, avoid secondary paving, solidification brings the unit cell defect brought of interface in the ranks, improve unit cell interface binding power in the ranks, simplify technique, raise the efficiency, reduce productive costs.
Accompanying drawing explanation
Fig. 1 is large deformation flexible cell structure composite material schematic diagram of the present invention;
Fig. 2 is hexagon single cell structure die structure dwg;
Fig. 3 is indent hexagon unit cell transition structure die structure dwg;
Fig. 4 is pentagon termination die structure dwg;
Fig. 5 is the hexagon single cell structure die structure dwg being affixed with glass fibre and resin;
Fig. 6 is the pentagon termination mould structure body being affixed with glass fibre and resin;
Fig. 7 is the capable constructional drawing of unit cell of paving rear mold composition;
Fig. 8 is the capable constructional drawing of unit cell of both sides paving rigid carbon-fiber composite material;
Fig. 9 is the constructional drawing that the surrounding pressing plate of the capable structure mold of all unit cells posted compresses.
Detailed description of the invention
Below in conjunction with accompanying drawing the present invention done and further explain.
Embodiment 1: as shown in Figure 1, a kind of large deformation flexible cell structure composite material, comprises some unit cells capable, and the rigid carbon-fiber composite material forming type between adjacent unit cell is capable by being soaked into epoxy resin by carbon cloth connects.Unit cell is capable comprises some hexagon single cell structures and indent hexagon unit cell transition structure supporting with it, and hexagon single cell structure and indent hexagon unit cell transition structure successively interval are arranged.Wherein, hexagon single cell structure is double-layer structure, and six cell walls of internal layer are glass fibre; As shown in Figure 5, it is outer that four cell wall flexible-epoxies that need be out of shape soak into shaping rear formation, and it is outer that all the other two cell wall epoxy resin soak into shaping rear formation.
Wherein, flexible-epoxy comprises following component, in mass fraction:
6350 flexible-epoxies 1.8 parts
1 part, A70 curing agent.
Epoxy resin comprises following component, in mass fraction:
E51 epoxy resin 0.8 part
3060 1 part, curing agent.
The method preparing above-mentioned large deformation flexible cell structure composite material comprises the steps:
Step 1), prepare mould: according to the capable structure of unit cell of large deformation flexible cell structure composite material, preparation hexagon single cell structure mould as shown in Figure 2, indent hexagon unit cell transition structure mould as shown in Figure 3 and the pentagon termination mould mated with indent hexagon unit cell transition structure mould, as shown in Figure 4, pentagon termination mould is used for the capable end moulding of unit cell and compression.Indent hexagon unit cell transition structure mould is used for the excessive connection between two hexagon single cell structure moulds.All moulds are all secondary to be prepared from LY12 aluminum alloy, and the thickness flexible cell structure composite material as required of mould determines.
Step 2), brushing mold release on mould also dries.
Step 3), cutting cloth of reinforcement fibers: according to the glass fabric needed for the size cutting of single cell structure mould and pentagon termination mould, according to the carbon cloth between the capable structure of size cutting unit cell of flexible cell structure composite material.
Step 4), modulation resin: 6350 flexible-epoxies, A70 curing agent are obtained flexible-epoxy by ratio of quality and the number of copies 1.8: 1 modulation; E51 epoxy resin, 3060 curing agent are obtained epoxy resin by ratio of quality and the number of copies 0.8: 1 modulation.
Step 5), paving unit cell mould: be wound around 6 layers of glass fabric and tighten up on hexagon single cell structure mould, then, the four edges 11,12,13,14 being out of shape cell wall is needed in corresponding single cell structure in hexagon single cell structure mould, aftershaping is soaked into flexible-epoxy, aftershaping is soaked into epoxy resin in all the other two limits 15,16 of hexagon single cell structure mould, as shown in Figure 5.The four edges paving of pentagon termination mould except the outer side edges of termination 6 layers of glass fabric also tighten up, then, two limits 17,18 being out of shape cell wall are needed in corresponding single cell structure in the mould of pentagon termination, aftershaping is soaked into flexible-epoxy, in the mould of pentagon termination, aftershaping is soaked into epoxy resin in all the other two limits 19,20 of paving glass fabric, as shown in Figure 6.Indent hexagon unit cell transition structure mould does not paste fiber laying.
Step 6), the capable structure mold of combination unit cell: according to required large deformation flexible cell structure composite gauge, some hexagon single cell structure moulds good for paving and indent hexagon unit cell transition structure mould are arranged at interval successively, form the capable structure mold of strip unit cell, and by two supporting two ends being arranged on the capable structure mold of described unit cell of pentagon termination mould, as shown in Figure 7.
Step 7), the rigid carbon-fiber composite material 4 between the capable structure mold of paving unit cell: get a capable structure mold of unit cell combining as the first row, paving 8 layers of carbon cloth respectively on its both sides, and by step 4) epoxy resin modulated soaks into; Get a capable structure mold of unit cell again as the second row, by its with the first row while be adjacent to, at the carbon cloth of the same number of plies of another side paving of the second row, and by step 4) epoxy resin that modulates soaks into, and forms structure as shown in Figure 8; According to required large deformation flexible cell structure composite gauge, by the capable structure mold of all the other unit cells of same method paving.
Step 8), curing molding: the surrounding pressing plate 5 of the capable structure mold of all unit cells good for paving is compressed, and fix with bolt of rear end plate 6, then put into baking oven and be warming up to 80 DEG C, solidify 8 hours, as shown in Figure 9.
Step 9), take out the mould solidified, open pressing plate and the demoulding, obtain required large deformation flexible cell structure composite material.
Embodiment 2: a kind of large deformation flexible cell structure composite material, comprises some unit cells capable, the rigid carbon-fiber composite material forming type between adjacent unit cell is capable by being soaked into epoxy resin by carbon cloth connects.Unit cell is capable comprises some hexagon single cell structures and indent hexagon unit cell transition structure supporting with it, and hexagon single cell structure and indent hexagon unit cell transition structure successively interval are arranged.Wherein, hexagon single cell structure is double-layer structure, and six cell walls of internal layer are glass fibre; It is outer that four cell wall flexible-epoxies that need be out of shape soak into shaping rear formation, and it is outer that all the other two cell wall epoxy resin soak into shaping rear formation.
Wherein, flexible-epoxy comprises following component, in mass fraction:
6350 flexible-epoxies 2.2 parts
1 part, A70 curing agent.
Epoxy resin comprises following component, in mass fraction:
E51 epoxy resin 1.2 parts
3060 1 part, curing agent.
The method preparing above-mentioned large deformation flexible cell structure composite material comprises the steps:
Step 1), prepare mould: according to the capable structure of unit cell of large deformation flexible cell structure composite material, preparation hexagon single cell structure mould as shown in Figure 2, indent hexagon unit cell transition structure mould as shown in Figure 3 and the pentagon termination mould mated with indent hexagon unit cell transition structure mould, as shown in Figure 4, pentagon termination mould is used for the capable end moulding of unit cell and compression.Indent hexagon unit cell transition structure mould is used for the excessive connection between two hexagon single cell structure moulds.All moulds are all secondary to be prepared from LY12 aluminum alloy, and the thickness flexible cell structure composite material as required of mould determines.
Step 2), brushing mold release on mould also dries.
Step 3), cutting cloth of reinforcement fibers: according to the glass fabric needed for the size cutting of single cell structure mould and pentagon termination mould, according to the carbon cloth between the capable structure of size cutting unit cell of flexible cell structure composite material.
Step 4), modulation resin: 6350 flexible-epoxies, A70 curing agent are obtained flexible-epoxy by ratio of quality and the number of copies 2.2: 1 modulation; E51 epoxy resin, 3060 curing agent are obtained epoxy resin by ratio of quality and the number of copies 1.2: 1 modulation.
Step 5), paving unit cell mould: be wound around 8 layers of glass fabric and tighten up on hexagon single cell structure mould, then, the four edges 11,12,13,14 being out of shape cell wall is needed in corresponding single cell structure in hexagon single cell structure mould, aftershaping is soaked into flexible-epoxy, aftershaping is soaked into epoxy resin in all the other two limits 15,16 of hexagon single cell structure mould, as shown in Figure 5.The four edges paving of pentagon termination mould except the outer side edges of termination 8 layers of glass fabric also tighten up, then, two limits 17,18 being out of shape cell wall are needed in corresponding single cell structure in the mould of pentagon termination, aftershaping is soaked into flexible-epoxy, in the mould of pentagon termination, aftershaping is soaked into epoxy resin in all the other two limits 19,20 of paving glass fabric, as shown in Figure 6.Indent hexagon unit cell transition structure mould does not paste fiber laying.
Step 6), the capable structure mold of combination unit cell: according to required large deformation flexible cell structure composite gauge, some hexagon single cell structure moulds good for paving and indent hexagon unit cell transition structure mould are arranged at interval successively, form the capable structure mold of strip unit cell, and by two supporting two ends being arranged on the capable structure mold of described unit cell of pentagon termination mould, as shown in Figure 7.
Step 7), the rigid carbon-fiber composite material 4 between the capable structure mold of paving unit cell: get a capable structure mold of unit cell combining as the first row, paving 10 layers of carbon cloth respectively on its both sides, and by step 4) epoxy resin modulated soaks into; Get a capable structure mold of unit cell again as the second row, by its with the first row while be adjacent to, at the carbon cloth of the same number of plies of another side paving of the second row, and by step 4) epoxy resin that modulates soaks into, and forms structure as shown in Figure 8; According to required large deformation flexible cell structure composite gauge, by the capable structure mold of all the other unit cells of same method paving.
Step 8), curing molding: the surrounding pressing plate 5 of the capable structure mold of all unit cells good for paving is compressed, and fix with bolt of rear end plate 6, then put into baking oven and be warming up to 100 DEG C, solidify 12 hours, as shown in Figure 9.
Step 9), take out the mould solidified, open pressing plate and the demoulding, obtain required large deformation flexible cell structure composite material.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a large deformation flexible cell structure composite material, is characterized in that: comprise some unit cells capable, is connected between adjacent described unit cell is capable by rigid carbon-fiber composite material; Described unit cell is capable comprises some hexagon single cell structures and indent hexagon unit cell transition structure supporting with it, and described hexagon single cell structure and indent hexagon unit cell transition structure successively interval are arranged; Wherein, described hexagon single cell structure is double-layer structure, and six cell walls of internal layer are glass fibre, and it is outer that four cell wall flexible-epoxies that need be out of shape soak into shaping rear formation, and it is outer that all the other two cell wall epoxy resin soak into shaping rear formation.
2. a kind of large deformation flexible cell structure composite material according to claim 1, is characterized in that: described flexible-epoxy comprises following component, in mass fraction:
6350 flexible-epoxy 1.8-2.2 parts
1 part, A70 curing agent.
3. a kind of large deformation flexible cell structure composite material according to claim 1 and 2, is characterized in that: described epoxy resin comprises following component, in mass fraction:
E51 epoxy resin 0.8-1.2 part
3060 1 part, curing agent.
4. a kind of large deformation flexible cell structure composite material according to claim 3, is characterized in that: described rigid carbon-fiber composite material soaks into epoxy resin by carbon cloth and forms type.
5. a large deformation flexible cell structure composite material and preparation method thereof, is characterized in that, comprises the steps:
Step 1), prepare mould: according to the capable structure of unit cell of large deformation flexible cell structure composite material, the pentagon termination mould prepared hexagon single cell structure mould, indent hexagon unit cell transition structure mould and mate with described indent hexagon unit cell transition structure mould;
Step 2), brushing mold release on mould also dries;
Step 3), cutting cloth of reinforcement fibers: according to the glass fabric needed for the size cutting of described single cell structure mould and pentagon termination mould, according to the carbon cloth between the capable structure of size cutting unit cell of flexible cell structure composite material;
Step 4), modulation resin: by 6350 flexible-epoxies, A70 curing agent by ratio of quality and the number of copies (1.8 ~ 2.2): 1 modulation obtains described flexible-epoxy; By E51 epoxy resin, 3060 curing agent by ratio of quality and the number of copies (0.8 ~ 1.2): 1 modulation obtains described epoxy resin;
Step 5), paving unit cell mould: be wound around 6 ~ 8 layers of glass fabric and tighten up on hexagon single cell structure mould, then, the four edges being out of shape cell wall is needed in corresponding single cell structure in described hexagon single cell structure mould, soak into aftershaping with flexible-epoxy, all the other two limit epoxy resin of described hexagon single cell structure mould soak into aftershaping; The four edges paving of pentagon termination mould except the outer side edges of termination 6 ~ 8 layers of glass fabric also tighten up, then, two limits being out of shape cell wall are needed in corresponding single cell structure in the mould of described pentagon termination, soak into aftershaping with flexible-epoxy, in the mould of described pentagon termination, all the other two limit epoxy resin of paving glass fabric soak into aftershaping;
Step 6), the capable structure mold of combination unit cell: according to required large deformation flexible cell structure composite gauge, some hexagon single cell structure moulds good for paving and indent hexagon unit cell transition structure mould are arranged at interval successively, form the capable structure mold of strip unit cell, and by two supporting two ends being arranged on the capable structure mold of described unit cell of pentagon termination mould;
Step 7), rigid carbon-fiber composite material between the capable structure mold of unit cell described in paving: get a capable structure mold of unit cell combining as the first row, respectively paving 8 ~ 10 layers of carbon cloth on its both sides, and by step 4) epoxy resin modulated soaks into; Get a capable structure mold of unit cell again as the second row, by its with the first row while be adjacent to, at the carbon cloth of the same number of plies of another side paving of the second row, and by step 4) epoxy resin that modulates soaks into; According to required large deformation flexible cell structure composite gauge, by the capable structure mold of all the other unit cells of same method paving;
Step 8), curing molding: compressed by the surrounding pressing plate of the capable structure mold of all unit cells good for paving, then put into baking oven and be warming up to 80 ~ 100 DEG C, solidifies 8 ~ 12 hours;
Step 9), take out the mould solidified, open pressing plate and the demoulding, obtain required large deformation flexible cell structure composite material.
6. a kind of large deformation flexible cell structure composite material and preparation method thereof according to claim 5, is characterized in that: described hexagon single cell structure mould, indent hexagon unit cell transition structure mould and pentagon termination mould all adopt LY12 aluminum alloy to be prepared from.
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