CN112810250A - Metal substrate surface bionic microstructure reinforced fiber metal laminate - Google Patents
Metal substrate surface bionic microstructure reinforced fiber metal laminate Download PDFInfo
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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
- B32B3/26—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 particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—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 particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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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
- B32B38/00—Ancillary operations in connection with laminating processes
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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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
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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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
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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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/103—Metal fibres
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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Abstract
The invention discloses a metal substrate surface bionic microstructure reinforced fiber metal laminate, and belongs to the field of plate composite materials. The structure can effectively overcome the defects of the traditional treatment mode of the metal surface of the fiber metal layer plate and overcome the defect that the cured laminate metal matrix and the fiber reinforced prepreg are easy to delaminate. The structure comprises a micro-nano composite structure consisting of a micron-sized inner and outer splayed main hole which forms a certain angle with the surface of a metal matrix and forms a mechanical lock catch structure with the metal matrix, a nano-scale auxiliary hole which is connected with the main hole and is used for the purpose of referring to an arthropod insect leg barb structure, and a nano-scale spatial inclined dense hole structure or a nano-scale spatial reticular dense hole structure which forms a certain inclination angle with the surface of the metal matrix. The structure is mainly used for surface treatment of a metal matrix of a fiber reinforced metal sheet, and the laminate is mainly used for manufacturing parts such as a fuselage, a skin, a wing leading edge, a fairing, an airplane empennage and the like of a large airplane in the field of aviation manufacturing.
Description
The technical field is as follows:
the invention provides a bionic microstructure reinforced fiber metal laminate, and belongs to the field of plate composite materials.
Background art:
since the advent of fiber metal laminates, fiber metal laminates have become important functional materials in the aerospace manufacturing field, and have become more important materials of choice for a plurality of components in the manufacture of large passenger aircraft in recent years, and the well-developed GLARE laminates have been widely applied to parts such as cabin vault, fuselage, wing leading edge and empennage of Boeing 747 and 787. With the manufacture of C919 large airplanes, large 20-sized transporters and other loaders in China, the demand on fiber metal laminate members is more and more intense, and the research on the mechanical properties and the forming behavior of the laminate is more urgent.
China starts late in related fields, and researches on fiber metal laminates are still in a basic stage. The fiber metal layer plate material used in the key parts of large passenger planes, military transport planes and the like is low in use degree. Therefore, the method has great scientific significance and engineering application value for developing and creating fiber metal laminated plate materials. The most prominent problem in the preparation and forming of laminate parts is the delamination of the components. Because the forming limit, expansion coefficient, strain criterion and the like of the metal and the fiber are different, the components of the laminate are easy to delaminate, debond and break in the preparation and forming processes. Although the traditional metal surface treatment such as sanding, sand blasting, anodic oxidation and the like can increase the roughness of the metal surface to a certain extent and improve the bonding performance of resin and a metal matrix, the problems of delamination and debonding of the laminate in the preparation and forming processes cannot be effectively solved. How to improve the interlayer bonding performance of the fiber metal laminate and effectively prevent the lamination defect of the laminate member becomes a hot spot of research in the future of the fiber metal laminate.
The invention content is as follows:
in order to overcome the defect that a laminate member is easy to delaminate in the preparation and forming processes, the invention discloses a metal substrate surface bionic microstructure reinforced fiber metal laminate. The bionic microstructure provides the surface micro-structure by using an arthropod leg end barb structure and a gecko sole sucker toe bristle structure as reference and combining a mechanical friction self-locking principle and a capillary phenomenon of resin infiltration of micro holes.
The invention discloses a metal substrate surface bionic microstructure reinforced fiber metal laminate which comprises the following components in parts by weight: the laminate is formed by pressurizing and curing a metal matrix with a surface bionic microstructure, resin, reinforcing fibers and the like according to a certain laying structure and a certain fiber laying angle. The microstructure is characterized in that a metal matrix surface microstructure contacted with resin is composed of micron-sized inner and outer splayed main holes and nanoscale space micro-minor holes distributed on the outer side of the circumference of the main holes, the splayed main holes and the metal matrix surface are densely arranged at a certain angle and uniformly distributed on the metal matrix surface, and the metal and resin contact side is the surface of the metal matrix. The nanometer-level fine auxiliary holes on the outer side of the circumference of the main hole are communicated with the main hole on one side close to the main hole and are distributed in space on the outer side of the circumference of the main hole. The micron-scale main hole and the nanometer-scale auxiliary hole are arranged into a structure of 'forward thorn' or 'barb' according to the actual requirement of the part. The micron-sized inner and outer splayed main holes form a certain angle with the metal substrate, and the angle is determined by the inclination angle required by the mechanical friction self-locking effect finally formed by the friction generated by the resin and the inner and outer splayed main hole walls after the resin flows into the micron-sized inner and outer splayed main holes and the capillary phenomenon generated by the comprehensive resin infiltration of the micro-fine holes.
The invention discloses a metal substrate surface bionic microstructure reinforced fiber metal laminate, wherein micron-sized inner and outer splayed holes which are uniformly distributed in a space with a certain angle between the surface of the metal substrate of the laminate and the horizontal direction of the laminate and resin which flows in the laminate curing process form a mechanical lock catch structure in the laminate layering trend direction. The structure can effectively overcome the defects of the traditional treatment mode of the metal surface of the fiber metal layer plate and overcome the defect that the cured laminate metal matrix and the fiber reinforced prepreg are easy to delaminate. Meanwhile, after the inner and outer splayed holes forming a certain angle with the surface of the laminate are soaked with resin and the laminate is cured, the tensile and shearing properties of the laminate part in the forming process can be effectively improved, and the layering in the forming process of the laminate is further reduced. The nanometer-scale spatial auxiliary holes which are densely distributed on the circumference of the micron-scale splayed main hole are used for reference of an agnail structure at the tail end of the leg of the arthropod insect, and the nanometer-scale micro hole spatial dense array structure and the nanometer-scale micro hole spatial reticular dense array structure on the surface of the metal layer are used for reference of a seta structure which is densely distributed at the tail end of the sucking disc toe of the gecko sole; the structure can further improve the bonding performance of the surface of the metal matrix of the laminate and the fiber resin prepreg and improve the bonding strength of the metal matrix and the resin.
The invention discloses a reinforced fiber metal laminate with a bionic microstructure on the surface of a metal substrate, wherein the bionic microstructure on the surface of the laminate is except for a splayed main hole imitating an agnail structure at the tail end of an arthropod insect leg and a subsidiary hole belonging to the splayed main hole. The microstructure also comprises a nano-scale micro-hole space dense array structure with a certain angle between the surface of the metal matrix and the horizontal direction of the laminate or a lattice, a pattern or other micro-processing structures which can enhance the metal surface processing performance of the fiber metal laminate and are not seen on the surface of the metal matrix. The surface of the metal substrate and the horizontal direction of the laminate form a space dense array structure of nano-scale tiny holes with a certain angle, the hole diameter and the length of the holes are obviously smaller than those of a space uniformly distributed splayed hole structure which forms a mechanical lock catch structure with resin, and the nano-scale tiny holes reach the nano-scale. The length of the holes and the inclination angle of the metal matrix of the relative laminate are determined by the characteristics of the optimal bonding interval of the prepared fiber metal laminate metal and the resin.
The invention discloses a reinforced fiber metal laminate with a bionic microstructure on the surface of a metal substrate, wherein the hole processing mode of the bionic microstructure on the surface of the laminate is obtained by laser processing or other processing methods meeting the requirements on size and precision. The preparation process of the laminate can adopt ultrasonic assistance or mechanical wave oscillation with certain frequency, amplitude and intensity to promote the resin to obtain good infiltration in the bionic microstructure. The resin used by the laminate is thermosetting resin or thermoplastic resin, and the pressurizing and curing process respectively adopts the modes of heating and curing the thermosetting resin and heating the thermoplastic resin to the viscous state of the resin and reducing the temperature and curing the resin according to the type of the resin. The reinforced fiber used by the laminate is aramid fiber, glass fiber, carbon fiber or other fiber reinforcement materials suitable for preparing fiber metal laminates, and the metal is aluminum alloy, titanium alloy, magnesium alloy or other light alloy materials suitable for preparing fiber metal laminates. The fiber metal laminate disclosed by the invention adopts a layering structure of a metal layer/fiber layer n +1/n, the fiber laying angle is 0 degree, 90 degrees, +/-45 degrees and the like, wherein the fiber angle of a specific component is determined according to the load born by the actual service environment of the prepared component. The specific fiber layer can be a single layer or can be laid into a double-layer or multi-layer structure according to actual needs.
Description of the drawings:
FIG. 1 is a schematic diagram of a metal substrate surface bionic microstructure reinforced fiber metal plate structure principle provided by the present invention.
FIG. 2 is a schematic view of different embodiments of a metal substrate surface of a metal substrate of a bionic microstructure reinforced fiber metal plate according to the present invention; the structure comprises a metal layer, a micro-nano composite structure and a metal layer, wherein a is a micron-scale splay-shaped main hole, b is a micro-nano composite structure consisting of the splay-shaped main hole and a nano-scale auxiliary hole, c and d are the micro-nano composite structure consisting of the main hole and the auxiliary hole and a nano-scale micro-hole space dense array structure forming a certain angle with the surface of the metal layer, and e is the micro-nano composite structure consisting of the main hole and the auxiliary hole and the nano-scale micro-hole space net.
Fig. 3 is a schematic view of a bionic microstructure and a spatial dense array structure laminate of nano-scale micro holes forming a certain angle with the surface of a metal substrate, corresponding to c and d in fig. 2, in an embodiment 2 of a metal substrate surface bionic microstructure reinforced fiber metal laminate provided in the present invention.
Fig. 4 is a schematic view of a bionic microstructure and a spatial network dense array structure laminate of nano-scale micro holes on the surface of a metal substrate, corresponding to e in fig. 2, in an embodiment 2 of the reinforced fiber metal laminate with a bionic microstructure on the surface of a metal substrate provided by the invention.
In the figure: 1. 3, 7 metal matrix; 2a fiber resin layer; 4 micron-sized splayed main holes; 5. 6 nanometer secondary holes; 8. 11 the upper and lower surfaces of the metal layer; 9-shaped hole dense areas; a 10-shaped splayed hole sparse region; 12. 13 nanometer-scale micro-hole space dense array structure; the 14-nanometer-scale micro-hole space net-shaped dense array structure.
The specific implementation mode is as follows:
the following embodiments are intended to more clearly illustrate the technical solutions of the present invention and should not be taken as a basis for limiting the scope of the present invention.
Example 1
The bionic microstructures of the metal matrix surface on the side contacting with the fiber reinforced resin prepreg are shown as a and b in fig. 2, and the intersection of the ends of the micron-sized splayed holes and the metal plate surface is divided into a hole dense area and a hole sparse area, which are shown as 9 and 10 in fig. 2 a. In order to enhance the bonding performance between metal and resin in the hole sparse area, the surface of the metal in the hole sparse area needs to be subjected to surface treatment to enhance the surface roughness of the metal. The processing mode is that the metal surface is etched by nanometer level micro vertical laser beam on the surface of the area by adopting a laser micro etching method. The etching content is the technical characteristics of patterns, tiny pits, bionic structures, bulges and the like which are uniformly distributed with dense dot matrixes, patterns, certain regularly arranged patterns and other patterns which can enhance the surface roughness of the metal matrix of the fiber metal laminate and further enhance the bonding performance between the laminates. After the metal matrix is prepared, the metal matrix, resin, fiber reinforced material and the like are layered according to a certain mode. And curing the layered plate blank at a certain temperature, a certain pressure and a certain vacuum degree according to a mode of heating and curing the thermosetting resin laminated plate and heating the thermoplastic resin laminated plate to a resin viscous state, cooling and curing, and finally preparing the bionic microstructure reinforced fiber metal laminated plate provided by the invention.
Example 2
The bionic microstructure of the surface of the metal matrix at the side contacting with the fiber reinforced resin prepreg is shown as c, d and e in figure 2, and micron-sized splayed holes with mechanical locking structures and auxiliary holes thereof are removed from the surface of the metal matrix. In order to improve the surface roughness of the metal matrix on the side contacting with the resin and further improve the adhesive property of the metal matrix and the resin, the whole metal surface is etched by nanometer fine laser beams. The laser beam and the metal matrix form a certain angle in the horizontal direction, and the angle is determined by the actual reinforcing effect of the laminate part. After etching, the surface of the metal substrate is provided with micron-sized splayed holes with mechanical locking structures and auxiliary holes thereof, and uniformly distributed and compact nano-scale spatial inclined micro holes are formed. The hole direction is a single acute angle or an obtuse angle which forms a certain angle with the horizontal direction of the metal matrix. The aperture size and length of the hole are nano-scale and far smaller than the micron-scale splayed hole with a mechanical lock catch structure. When the nanometer level micro laser beam is used for etching the surface of the metal matrix, the spatial inclined holes forming acute angles and obtuse angles with the surface of the metal matrix can be etched at certain intervals at the same time to form a spatial dense network structure micro hole network. Therefore, after the resin soaks the space hole nets, the bonding performance of the metal matrix of the fiber metal laminate and the fiber resin prepreg and the interlayer bonding performance of the laminate are obviously improved.
After the metal matrix is prepared, the metal matrix, resin and fiber reinforced material are layered according to a certain mode. According to the mode of heating and solidifying a thermosetting resin laminate and a thermoplastic resin laminate by heating the resin laminate to a high elastic state or a viscous state, solidifying a laminate blank at a certain temperature, a certain pressure and a certain vacuum degree, and finally preparing the bionic microstructure reinforced fiber metal laminate provided by the invention.
Claims (8)
1. A bionic microstructure reinforced fiber metal laminate on the surface of a metal substrate is characterized in that: the laminate is formed by pressurizing and curing a metal matrix with a surface bionic microstructure, resin, reinforcing fibers and the like at a certain temperature, a certain pressure and a certain vacuum degree according to a certain laying structure and a certain fiber laying angle.
2. A bionic microstructure reinforced fiber metal laminate on the surface of a metal substrate is characterized in that: the bionic microstructure of the metal surface refers to an 'barb' structure at the tail end of a shank of an arthropod insect and a 'seta' structure of a foot sole of a gecko, and is composed of a micron-sized inner and outer 'eight' -shaped main hole and a nanometer-sized space micro-minor hole distributed on the outer side of the circumference of the main hole, wherein the 'eight' -shaped main hole and the surface of a metal base body are densely distributed on the surface of the metal base body in an array manner at a certain angle, and the surface is one side of metal and resin in contact: the nanometer-level fine auxiliary holes on the outer side of the circumference of the main hole are communicated with the main hole on one side close to the main hole and are distributed in space on the outer side of the circumference of the main hole; the micron-scale main hole and the nanometer-scale auxiliary hole are arranged into a structure of 'smooth thorn' or 'barb' according to the actual requirement of the part; except for a splayed main hole imitating an agnail structure at the end of an arthropod leg and a subsidiary hole thereof. The microstructure also comprises a nano-scale micro-hole space dense structure with a certain angle between the surface of the metal matrix and the horizontal direction of the laminate and/or a lattice, a pattern or other micro-processing structures which can enhance the metal surface processing performance of the fiber metal laminate and are not seen on the surface of the metal matrix.
3. A bionic microstructure reinforced fiber metal laminate on the surface of a metal substrate is characterized in that: the micron-sized inner and outer splayed main holes form a certain angle with the metal substrate, and the angle is determined by the inclination angle required by the mechanical friction self-locking effect finally formed by the friction generated by the resin and the inner and outer splayed main hole walls after the resin flows into the micron-sized inner and outer splayed main holes and the capillary phenomenon generated by the comprehensive resin infiltration of the micro-fine holes.
4. A bionic microstructure reinforced fiber metal laminate on the surface of a metal substrate is characterized in that: the hole processing mode of the bionic microstructure on the surface of the laminate is obtained by laser processing or other processing methods meeting requirements.
5. A bionic microstructure reinforced fiber metal laminate on the surface of a metal substrate is characterized in that: the preparation process of the laminate adopts ultrasonic assistance or mechanical wave oscillation with certain frequency, amplitude and intensity to ensure that the resin can obtain good infiltration in the bionic microstructure.
6. A bionic microstructure reinforced fiber metal laminate on the surface of a metal substrate is characterized in that: the resin used by the laminate is thermosetting resin or thermoplastic resin, and the pressurizing and curing process adopts a mode of heating and curing the thermosetting resin and heating the thermoplastic resin to a resin viscous state, cooling and curing respectively according to the type of the resin.
7. A bionic microstructure reinforced fiber metal laminate on the surface of a metal substrate is characterized in that: the reinforced fiber used by the laminate is aramid fiber, glass fiber, carbon fiber or other fiber reinforcement materials suitable for preparing fiber metal laminates, and the metal is aluminum alloy, titanium alloy, magnesium alloy or other light alloy materials suitable for preparing fiber metal laminates.
8. A bionic microstructure reinforced fiber metal laminate on the surface of a metal substrate is characterized in that: the structure adopts a layer structure of metal layer/fiber layer n +1/n, and the fiber laying angle of a specific component is 0 degree, 90 degrees, +/-45 degrees and the like, wherein the fiber angle of the specific component is determined according to the load born by the actual service environment of the prepared part. The specific fiber layer can be a single layer or can be laid into a double-layer or multi-layer structure according to actual needs.
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Cited By (6)
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| CN113532261A (en) * | 2021-08-16 | 2021-10-22 | 河北工业大学 | Strain monitoring system and method |
| CN113752652A (en) * | 2021-09-07 | 2021-12-07 | 河北工业大学 | Novel fiber metal laminate for improving floating parasitism and electrochemical corrosion of ship body |
| CN113968049A (en) * | 2021-11-12 | 2022-01-25 | 燕山大学 | Metal matrix interface bionic structure fiber metal laminate |
| CN113977990A (en) * | 2021-11-04 | 2022-01-28 | 吉林大学 | Preparation method for improving tensile strength of metal/CFRP composite material member |
| CN114103303A (en) * | 2021-12-15 | 2022-03-01 | 燕山大学 | Fiber metal laminate for enhancing composite interface connection and preparation method thereof |
| CN114633497A (en) * | 2022-03-24 | 2022-06-17 | 重庆大学 | Fiber and metal compounding method |
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| 许小山: "FRP/金属叠层板粘接界面强化机理与方法研究", 《中国优秀博硕士学位论文全文数据库（硕士） 工程科技Ⅰ辑》, no. 3, 15 March 2016 (2016-03-15), pages 10 - 11 * |
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| CN113532261A (en) * | 2021-08-16 | 2021-10-22 | 河北工业大学 | Strain monitoring system and method |
| CN113752652A (en) * | 2021-09-07 | 2021-12-07 | 河北工业大学 | Novel fiber metal laminate for improving floating parasitism and electrochemical corrosion of ship body |
| CN113977990A (en) * | 2021-11-04 | 2022-01-28 | 吉林大学 | Preparation method for improving tensile strength of metal/CFRP composite material member |
| CN113968049A (en) * | 2021-11-12 | 2022-01-25 | 燕山大学 | Metal matrix interface bionic structure fiber metal laminate |
| CN114103303A (en) * | 2021-12-15 | 2022-03-01 | 燕山大学 | Fiber metal laminate for enhancing composite interface connection and preparation method thereof |
| CN114633497A (en) * | 2022-03-24 | 2022-06-17 | 重庆大学 | Fiber and metal compounding method |
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