CN111593843A - Composite board - Google Patents
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- CN111593843A CN111593843A CN202010558715.4A CN202010558715A CN111593843A CN 111593843 A CN111593843 A CN 111593843A CN 202010558715 A CN202010558715 A CN 202010558715A CN 111593843 A CN111593843 A CN 111593843A
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- curved plate
- plate
- composite board
- flat plate
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- 239000002131 composite material Substances 0.000 title claims abstract description 68
- 239000000463 material Substances 0.000 claims abstract description 43
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 18
- 229920002748 Basalt fiber Polymers 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- 229920006231 aramid fiber Polymers 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 239000011208 reinforced composite material Substances 0.000 claims description 5
- 239000004566 building material Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 239000004576 sand Substances 0.000 description 11
- 229920000139 polyethylene terephthalate Polymers 0.000 description 9
- 239000005020 polyethylene terephthalate Substances 0.000 description 9
- 239000011112 polyethylene naphthalate Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 6
- -1 polyethylene terephthalate Polymers 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 239000013535 sea water Substances 0.000 description 4
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 3
- 239000011151 fibre-reinforced plastic Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009440 infrastructure construction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 102100040287 GTP cyclohydrolase 1 feedback regulatory protein Human genes 0.000 description 1
- 101710185324 GTP cyclohydrolase 1 feedback regulatory protein Proteins 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
- E04C2/22—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics reinforced
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
Abstract
The application relates to the technical field of building materials, in particular to a composite board. The application provides a composite board, includes: the first FRP flat plate and the second FRP curved plate; the second FRP curved plate comprises a plurality of convex strips, the convex strips are arranged in parallel, a groove is formed between every two adjacent convex strips, the direction of the convex part of each convex strip is the front surface of the second FRP curved plate, and the direction of the concave part of each convex strip is the back surface of the second FRP curved plate, wherein the first FRP flat plate and the second FRP curved plate are made of different materials; and the reverse sides of the two second FRP curved plates are respectively and symmetrically arranged on the two sides of the first FRP flat plate by taking the first FRP flat plate as a symmetry axis. The application provides a composite board, can effectively combine traditional FRP material can't possess good tensile fracture strain property and high elastic modulus's technical defect simultaneously.
Description
Technical Field
The application relates to the technical field of building materials, in particular to a composite board.
Background
Along with the continuous development of domestic infrastructure construction, the infrastructure construction of China is rapidly advanced, and the demand for reinforced concrete is more and more increased. The engineering sand river sand is increasingly deficient in river sand resources due to long-term exploitation, so people focus on abundant sea sand. However, the sea sand contains a lot of chloride ions which can corrode the steel bars, so that the steel cannot be directly used in the sea water and sea sand concrete structure.
The existing Fiber Reinforced composite material (composite material, Fiber Reinforced Polymer, FRP) has the characteristics of good corrosion resistance, strong fatigue resistance, convenient construction and the like, and is widely applied. The traditional FRP comprises CFRP, GFRP and AFRP, and the FRP is widely applied, has high strength and elastic modulus and tensile breaking strain below 3 percent.
The new FRP material appeared in recent years is made of polyethylene terephthalate (PET) or polyethylene naphthalate (PEN), and the tensile breaking strain reaches more than 5%, so that the new FRP material has greater energy consumption capability, but has lower strength and elastic modulus compared with the traditional FRP. PET FRP requires a material with a larger cross-sectional area at the same strain and with the same bearing capacity as conventional FRP. Therefore, the existing FRP material is difficult to have excellent tensile breaking strain performance and elastic modulus performance at the same time.
The mixed FRP material with higher strength and elastic modulus and large deformability is obtained by reasonable combination, so that the mixed FRP material has wider application prospect.
Disclosure of Invention
In view of this, the present application provides a composite board, which can effectively combine the technical defects that the conventional FRP material cannot have both excellent tensile breaking strain performance and high elastic modulus.
The application provides a composite board, on the one hand is applicable to special environments such as marine environment and medical nuclear magnetic resonance, radar facilities on the other hand can be as drawing load-bearing member.
The application provides a composite board, includes: the first FRP flat plate and the second FRP curved plate;
the second FRP curved plate comprises a plurality of convex strips, the convex strips are arranged in parallel, a groove is formed between every two adjacent convex strips, the direction of the convex part of each convex strip is the front surface of the second FRP curved plate, and the direction of the concave part of each convex strip is the back surface of the second FRP curved plate, wherein the first FRP flat plate and the second FRP curved plate are made of different materials;
and the reverse sides of the two second FRP curved plates are respectively and symmetrically arranged on the two sides of the first FRP flat plate by taking the first FRP flat plate as a symmetry axis.
Preferably, the cross-sectional areas of the convex strip and the first FRP flat plate in the radial direction of the convex strip are arc-shaped or rectangular.
Preferably, the material of the first FRP plate is selected from PET FRP (Polyethylene terephthalate, abbreviated as PET, fiber-reinforced polymer, abbreviated as FRP, Polyethylene terephthalate fiber-reinforced composite), PEN (polytrimethylene terephthalate, abbreviated as PEN, fiber-reinforced polymer, abbreviated as FRP, Polyethylene naphthalate fiber-reinforced composite), carbon fiber-reinforced composite, aramid fiber-reinforced composite, or basalt fiber-reinforced composite; preferably, the material of the first FRP flat plate is selected from PET FRP or PEN FRP.
Preferably, the second FRP curved plate is made of a material selected from a carbon fiber reinforced composite material, an aramid fiber reinforced composite material, and a basalt fiber reinforced composite material.
Preferably, the length of the first FRP flat plate is less than or equal to the length of the second FRP curved plate.
Specifically, the length of the first flat plate is less than or equal to the extended length of the second FRP curved plate.
Preferably, the protruding strips and the first FRP flat plate form preset holes, and the number of the protruding strips and the protruding height can be controlled to control the size of the preset holes, wherein the preset holes are used for accommodating tensile deformation of the second FRP curved plate.
Preferably, the reverse surfaces of the two second FRP curved plates are symmetrically adhered to the two surfaces of the first FRP flat plate, respectively.
Preferably, the composite board further includes a third FRP curved plate, where the third FRP curved plate includes a plurality of protruding strips, the protruding strips are arranged in parallel, a groove is arranged between adjacent protruding strips, the protruding strip faces the front side of the third FRP curved plate in the direction of a protruding portion of the protruding strip, and the groove faces the back side of the third FRP curved plate in the direction of a recessed portion of the groove;
and taking the first FRP flat plate as a symmetry axis, and symmetrically arranging the reverse sides of the two third FRP curved plates on the surface of the front side of the second FRP curved plate.
The third FRP curved plate is made of a material selected from a carbon fiber reinforced composite material, an aramid fiber reinforced composite material or a basalt fiber reinforced composite material.
The shape of the third FRP curved plate may be the same as that of the second FRP curved plate, or the shape of the third FRP curved plate may be different from that of the second FRP curved plate.
Preferably, the reverse surfaces of the two third FRP curved plates are symmetrically adhered to the surface of the front surface of the second FRP curved plate.
Specifically, the groove of the third FRP curved plate is aligned with the rib of the second FRP curved plate.
The second FRP curved plate of the composite board provided by the present application is manufactured by bending a material of the second FRP curved plate to form an integrally-formed curved plate formed by a plurality of parallel convex strips.
It should be noted that, in the present application, the composite board with different tensile breaking strain forces and elastic moduli can be obtained by controlling the number of the convex strips of the second FRP curved plate or the height of the convex strips, or controlling the material of the first FRP flat plate or the second FRP curved plate.
It should be noted that, the first FRP flat plate and the second FRP curved plate of the composite board provided by the present application can both bear a load in the FRP fiber direction of the composite board of the present application, that is, in a direction in which the convex strips of the second FRP curved plate are straightened (extended) (that is, in a radial direction of the convex strips).
It should be noted that the composite board provided by the present application can also obtain a composite board with different tensile breaking strain forces and elastic moduli by providing the third FRP curved plate.
According to the technical scheme, the method has the following advantages:
the application provides a composite board, can effectively combine the characteristic of the dull and stereotyped and second FRP bent plate of first FRP, first FRP is dull and stereotyped to the slab structure, the bent plate of second FRP is bent plate structure, make the composite board of this application as the tensile member, before the use, the sand grip of the bent plate of second FRP of composite board and the dull and stereotyped hole that presets of first FRP, make the bent plate of second FRP can freely stretch out and draw back, this application can be through adjusting the length before the bent plate of second FRP uses (promptly before pulling), and then adjust the atress condition of the dull and stereotyped and second FRP bent plate of first FRP. In the early stage of stretching, a first FRP flat plate of the composite plate bears load independently; at tensile later stage, the second FRP bent plate produces tensile stress when the composite sheet material of this application extends to preset meeting an emergency, the length before the tensile of the compound sheet material holistic tensile back length more than or equal to second FRP bent plate of this application, the load is born jointly to first FRP flat board and second FRP bent plate. At this time, the elastic modulus of the composite sheet material of the present application changes, and the elastic modulus of the first FRP flat plate < the elastic modulus of the composite sheet material of the present application < the elastic modulus of the second FRP curved plate. Therefore, under the condition that the length of the composite board of the present application is not changed, the secant modulus of the composite board of the present application can be changed by adjusting the stretchable length of the second FRP curved plate.
To sum up, thereby the composite board that this application provided can freely adjust FRP composite board's secant modulus according to structural feature satisfies the structure and uses the purpose. The application provides a composite board light weight is high, has reduced the job site installation degree of difficulty, reduces the manpower and the influence of construction to normal use to can use in sea water sea sand concrete structure and need not consider the corrosive action of chloride ion to the material.
Drawings
Fig. 1 is a schematic view of a first composite board provided in an embodiment of the present application;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
FIG. 4 is a schematic view of a second composite board provided in an embodiment of the present application;
FIG. 5 is a schematic view of a third composite board provided in an embodiment of the present application;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
FIG. 7 is a cross-sectional view B-B of FIG. 5;
fig. 8 is a tensile stress-strain curve of the composite board provided in the embodiment of the present application, where the tensile stress-strain curve in fig. 8 is two broken lines, a first segment labeled as "only linear FRP tension" is the tensile stress-strain curve of the first FRP flat plate 1, and a second segment labeled as "linear and bending FRP common tension" is the common tensile stress-strain curve of the first FRP flat plate 1 and the two second FRP curved plates 2.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless explicitly stated or limited otherwise; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
It should be understood that the present application is applied to the field of building materials, please refer to fig. 1-3, fig. 1 is a schematic view of a first composite board provided in an embodiment of the present application; FIG. 2 is a cross-sectional view A-A of FIG. 1; FIG. 3 is a cross-sectional view B-B of FIG. 1; as shown in fig. 1-3, fig. 1 includes a first FRP flat plate 1 and a second FRP curved plate 2; the second FRP curved plate 2 comprises a plurality of convex strips 2-1, the convex strips 2-1 are arranged in parallel, a groove 2-2 is arranged between every two adjacent convex strips 2-1, the direction E of the convex part facing the convex strip is the front surface C of the second FRP curved plate, and the direction F of the concave part facing the groove is the back surface D of the second FRP curved plate, wherein the materials of the first FRP flat plate 1 and the second FRP curved plate 2 are different; the first FRP flat plate 1 is taken as a symmetry axis, and the reverse sides of the two second FRP curved plates 2 are respectively and symmetrically arranged on the two sides of the first FRP flat plate 1.
Specifically, FIG. 2 is a sectional view taken along line A-A of FIG. 1, which is a sectional view of the highest point of the rib 2-1; FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1, which is a cross-sectional view of the lowest point of the ridge 2-1.
First FRP dull and stereotyped 1 of this application embodiment is the slab structure, second FRP bent plate 2 is bent plate structure, make the composite board of this application be the tension member, before the use, the sand grip 2-1 of the second FRP bent plate of composite board forms preset hole with first FRP dull and stereotyped 1, make second FRP bent plate 2 can freely stretch out and draw back, this application can be through adjusting the length before second FRP bent plate 2 uses (before pulling promptly), and then adjust the atress condition of first FRP dull and stereotyped 1 of second FRP bent plate 2.
The composite board of this application is at the in-process that draws, and second FRP bent plate 2 forms with first FRP flat board 1 and presets the hole, and to the composite board application load back of this application, second FRP bent plate 2 can freely stretch out and draw back before being straightened, can adjust the secant modulus of the composite board of this application. Referring to fig. 8, fig. 8 is a tensile stress-strain curve of the composite board provided by the present application, and it can be known from the tensile stress-strain curve that the first FRP flat plate 1 of the composite board of the present application first bears a load, and as the strain of the composite board of the present application increases, the length before stretching of the second FRP curved plate 2 is adjusted to start to bear a force when the composite board of the present application reaches 1% strain, or to start to bear a force when the composite board of the present application reaches 2%. Therefore, in the early stage of stretching, the first FRP flat plate of the composite plate bears load independently; at tensile later stage, the second FRP bent plate produces tensile stress when the composite sheet material of this application extends to preset meeting an emergency, length before the tensile of the compound sheet material of this application's tensile back length more than or equal to second FRP bent plate, the load is born jointly to first FRP flat board and second FRP bent plate. At this time, the elastic modulus of the composite sheet material of the present application changes, and the elastic modulus of the first FRP flat plate < the elastic modulus of the composite sheet material of the present application < the elastic modulus of the second FRP curved plate. Therefore, under the condition that the length of the composite board of the present application is not changed, the secant modulus of the composite board of the present application can be changed by adjusting the stretchable length of the second FRP curved plate. The application provides a composite board can freely adjust FRP composite board's secant modulus according to structural feature thereby satisfies the structure and uses the purpose. In addition, the composite board that this application provided is light high-strength, is favorable to reducing member cross sectional dimension, can improve the shock resistance of structure. Moreover, the composite board has a corrosion-resistant effect, and can be used in a seawater-seawater sand concrete structure of an island, so that the seawater-seawater sand concrete structure has high bearing capacity and good ductility.
Further, the second FRP curved plate 2 is an integrally formed curved plate with a plurality of convex strips 2-1 which are mutually contacted and arranged in parallel; the second FRP curved plate 2 may also be an integrally formed curved plate in which a plurality of protruding strips 2-1 are arranged in parallel at intervals of a preset distance.
Further, please refer to fig. 4, fig. 4 is a schematic diagram of a second composite board provided in the embodiment of the present application. As shown in fig. 4, the cross-sectional areas of the ribs 2-1 and the first FRP flat plate 1 in the radial direction of the ribs may be arc-shaped or rectangular.
Further, the length of the first FRP flat plate is not greater than the length of the second FRP curved plate, and specifically, the length of the first FRP flat plate before stretching is not greater than the length of the second FRP curved plate before stretching.
Further, the material of the first FRP flat plate 1 is selected from PET FRP, PEN FRP, carbon fiber reinforced composite material, aramid fiber reinforced composite material or basalt fiber reinforced composite material. Preferably, the material of the first FRP flat plate 1 is selected from PET FRP or PEN FRP having a large breaking strain.
Further, the second FRP curved plate 2 is made of a material selected from a carbon fiber reinforced composite material, an aramid fiber reinforced composite material, or a basalt fiber reinforced composite material.
Furthermore, the protruding strips 2-1 and the first FRP flat plate 1 form preset holes.
Furthermore, the reverse sides D of the two second FRP curved plates are symmetrically adhered to the two sides of the first FRP flat plate 1 respectively.
It should be noted that, the convex strips 2-1 of the present application are arranged in parallel to form the second FRP curved plate, and the force applied to the convex strips 2-1 is applied along the radial direction of the convex strips 2-1, but not along the axial direction of the convex strips 2-1.
Referring to fig. 5-7, fig. 5 is a schematic view of a third composite board provided in the embodiment of the present application; FIG. 6 is a cross-sectional view A-A of FIG. 5; FIG. 7 is a sectional view taken along line B-B of FIG. 5, further including a third curved FRP plate 3, where the third curved FRP plate 3 includes a plurality of ribs 3-1, each rib 3-1 is disposed parallel to each other, and a groove 3-2 is disposed between adjacent ribs 3-1, so as to be a front surface of the third curved FRP plate in a direction toward a convex portion of the rib 3-1, and so as to be a back surface of the third curved FRP plate in a direction toward a concave portion of the groove 3-2; and taking the first FRP flat plate 1 as a symmetry axis, and symmetrically arranging the reverse sides of the two third FRP curved plates on the surface of the front side C of the second FRP curved plate respectively.
Wherein, the structure of the third FRP curved plate 3 is similar to that of the second FRP curved plate.
Furthermore, the reverse surfaces of the two third FRP curved plates 3 are symmetrically adhered to the surface of the front surface C of the second FRP curved plate respectively.
Further, referring to fig. 5 to 7, the convex strips 3-1 of the third FRP curved plate and the convex strips 2-1 of the second FRP curved plate are arranged in a staggered manner; the groove 3-2 of the third FRP curved plate is aligned with the raised position of the raised strip of the second FRP curved plate.
Therefore, the number of layers of the third FRP curved plate can be increased by adjusting different FRP types, and the length of the third FRP curved plate before stretching is controlled to control the secant modulus of the composite board provided by the application.
The terms "first," "second," "third," "fourth," and the like in the description of the application and the above-described figures, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A composite panel, comprising: the first FRP flat plate and the second FRP curved plate;
the second FRP curved plate comprises a plurality of convex strips, the convex strips are arranged in parallel, a groove is formed between every two adjacent convex strips, the direction of the convex part of each convex strip is the front surface of the second FRP curved plate, and the direction of the concave part of each convex strip is the back surface of the second FRP curved plate, wherein the first FRP flat plate and the second FRP curved plate are made of different materials;
and the reverse sides of the two second FRP curved plates are respectively and symmetrically arranged on the two sides of the first FRP flat plate by taking the first FRP flat plate as a symmetry axis.
2. The composite board as claimed in claim 1, wherein the cross-sectional area of the rib and the first FRP flat plate along the radial direction of the rib is arc-shaped or rectangular.
3. The composite board according to claim 1, wherein the first FRP plate is made of a material selected from the group consisting of PETFRP, PEN FRP, carbon fiber reinforced composite, aramid fiber reinforced composite, and basalt fiber reinforced composite.
4. The composite board according to claim 1, wherein the second FRP curved plate is made of a material selected from a carbon fiber reinforced composite material, an aramid fiber reinforced composite material or a basalt fiber reinforced composite material.
5. The composite board as claimed in claim 1, wherein the first FRP flat plate has a length less than or equal to that of the second FRP curved plate.
6. The composite panel of claim 1, wherein the ribs form pre-arranged apertures with the first FRP flat sheet.
7. The composite board as claimed in claim 1, wherein the opposite surfaces of the two second FRP curved plates are symmetrically disposed on the two surfaces of the first FRP flat plate, respectively.
8. The composite board as claimed in any one of claims 1 to 7, further comprising a third FRP curved plate, wherein the third FRP curved plate comprises a plurality of ribs, each of the ribs is disposed parallel to each other, a groove is disposed between adjacent ribs, the groove is disposed on a front side of the third FRP curved plate in a direction toward a convex portion of the rib, and the groove is disposed on a back side of the third FRP curved plate in a direction toward a concave portion of the groove;
and taking the first FRP flat plate as a symmetry axis, and symmetrically arranging the reverse sides of the two third FRP curved plates on the surface of the front side of the second FRP curved plate.
9. The composite board as claimed in claim 8, wherein the reverse surfaces of the two third FRP curved plates are symmetrically adhered to the surface of the obverse surface of the second FRP curved plate respectively.
10. The composite board as claimed in claim 8, wherein the grooves of the third FRP curved plate are aligned with the ribs of the second FRP curved plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010558715.4A CN111593843A (en) | 2020-06-18 | 2020-06-18 | Composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010558715.4A CN111593843A (en) | 2020-06-18 | 2020-06-18 | Composite board |
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|---|---|
| CN111593843A true CN111593843A (en) | 2020-08-28 |
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| CN202010558715.4A Pending CN111593843A (en) | 2020-06-18 | 2020-06-18 | Composite board |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204488127U (en) * | 2015-03-12 | 2015-07-22 | 河北多凯复合材料有限公司 | A kind of FRP glass reinforced plastic composite board material of novel improved structure |
| JP2017057123A (en) * | 2015-09-18 | 2017-03-23 | 東海カーボン株式会社 | Carbon fiber-reinforced carbon composite material and method for producing carbon fiber-reinforced carbon composite material |
| CN109219681A (en) * | 2016-04-01 | 2019-01-15 | 斯高堡德有限责任公司 | Make the system and method with the couch board of Corrugated media and convex print medium |
| CN212224406U (en) * | 2020-06-18 | 2020-12-25 | 广东工业大学 | Composite board |
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2020
- 2020-06-18 CN CN202010558715.4A patent/CN111593843A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204488127U (en) * | 2015-03-12 | 2015-07-22 | 河北多凯复合材料有限公司 | A kind of FRP glass reinforced plastic composite board material of novel improved structure |
| JP2017057123A (en) * | 2015-09-18 | 2017-03-23 | 東海カーボン株式会社 | Carbon fiber-reinforced carbon composite material and method for producing carbon fiber-reinforced carbon composite material |
| CN109219681A (en) * | 2016-04-01 | 2019-01-15 | 斯高堡德有限责任公司 | Make the system and method with the couch board of Corrugated media and convex print medium |
| CN212224406U (en) * | 2020-06-18 | 2020-12-25 | 广东工业大学 | Composite board |
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