CN119589992B - A method for controlling the curing deformation of composite material reinforced wall panels - Google Patents

A method for controlling the curing deformation of composite material reinforced wall panels

Info

Publication number
CN119589992B
CN119589992B CN202411924412.4A CN202411924412A CN119589992B CN 119589992 B CN119589992 B CN 119589992B CN 202411924412 A CN202411924412 A CN 202411924412A CN 119589992 B CN119589992 B CN 119589992B
Authority
CN
China
Prior art keywords
composite
stringers
wallboard
metal
plates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202411924412.4A
Other languages
Chinese (zh)
Other versions
CN119589992A (en
Inventor
周良辰
徐林
赵崇书
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Building Materials Shanghai Aviation Technology Co ltd
China National Building Material Group Co Ltd CNBM
Original Assignee
China Building Materials Shanghai Aviation Technology Co ltd
China National Building Material Group Co Ltd CNBM
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Building Materials Shanghai Aviation Technology Co ltd, China National Building Material Group Co Ltd CNBM filed Critical China Building Materials Shanghai Aviation Technology Co ltd
Priority to CN202411924412.4A priority Critical patent/CN119589992B/en
Publication of CN119589992A publication Critical patent/CN119589992A/en
Application granted granted Critical
Publication of CN119589992B publication Critical patent/CN119589992B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/543—Fixing the position or configuration of fibrous reinforcements before or during moulding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
    • F16S1/00—Sheets, panels, or other members of similar proportions; Constructions comprising assemblies of such members
    • F16S1/10—Composite members, e.g. with ribs or flanges attached

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Robotics (AREA)
  • Laminated Bodies (AREA)

Abstract

本发明提供了一种控制复合材料加筋壁板固化变形的方法，方法包括：在壁板的远离长桁的一侧面上设置金属板；在金属板的远离长桁的一侧面上铺设复材板，形成复材结构件，复材板的数量与长桁的数量对应设置，每块复材板一一正对于每根长桁与壁板的贴合面，复材板的材料和铺层与壁板的相同，复材板的铺层与长桁和壁板的总铺层对称，复材板的厚度等于长桁与壁板的贴合面处的复材总厚度，复材板的航向宽度与贴合面的航向宽度一致，复材板的环向宽度与贴合面的环向宽度一致；将复材结构件共同固化后，通过机械加工方式将金属板和复材板移除，得到完整的复合材料加筋壁板。本发明实现了控制复材固化变形的目的，节约了制造成本。

The present invention provides a method for controlling the curing deformation of a composite reinforced wall panel. The method comprises: disposing a metal plate on a side of the wall panel away from the stringers; laying a composite plate on a side of the metal plate away from the stringers to form a composite structural member, wherein the number of composite plates corresponds to the number of stringers, each composite plate is directly opposite the contact surface between each stringer and the wall panel, the material and layup of the composite plates are the same as those of the wall panel, the layup of the composite plates is symmetrical with the total layup of the stringers and the wall panel, the thickness of the composite plates is equal to the total thickness of the composite material at the contact surface between the stringers and the wall panel, the longitudinal width of the composite plates is consistent with the longitudinal width of the contact surface, and the circumferential width of the composite plates is consistent with the circumferential width of the contact surface; after the composite structural member is cured together, the metal plate and the composite plates are removed by mechanical processing to obtain a complete composite reinforced wall panel. The present invention achieves the purpose of controlling the curing deformation of the composite material and saves manufacturing costs.

Description

Method for controlling solidification deformation of composite material reinforced wallboard
Technical Field
The invention relates to the technical field of composite material member manufacturing technology, in particular to a method for controlling solidification deformation of a composite material reinforced wallboard.
Background
The composite material has the characteristics of high strength and light weight, and is widely adopted in the manufacturing industry, but the special manufacturing process also brings unprecedented manufacturing difficulty. When the composite material is used for manufacturing the bearing structure, the composite material reinforced wallboard made of the composite material is usually required to be cured at high temperature and high pressure, and due to the special property of the composite material, namely, the composite material is formed by mixing fibers and resin, the composite material reinforced wallboard is often deformed after being cured, and particularly, the composite material reinforced wallboard with a complex structure has multidimensional deformation, has great influence on structural mechanical properties and causes great difficulty on subsequent assembly.
Because the composite material layer is formed by a plurality of fiber directions, the current theoretical analysis on deformation is carried out based on the layer direction, and the curing deformation control in the process aspect is also the modification of the profile of a tooling for paving the composite material by combining the theoretical analysis. The method can not achieve reasonable precision in the prediction of the deformation of the composite reinforced wallboard, and causes uncertain factors to the design of a later-stage tool, so that the composite reinforced wallboard manufactured by the modified tool can not achieve a satisfactory effect, and the composite reinforced wallboard needs to be reworked to cause unnecessary loss. Accordingly, the present invention provides a method of controlling the cure deformation of a composite reinforced wallboard to address the above-described problems.
Disclosure of Invention
The invention aims to provide a method for controlling the curing deformation of a composite material reinforced wallboard so as to control the curing deformation of the composite material, thereby saving the manufacturing cost.
On the one hand, in order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
A method of controlling curing deformation of a composite reinforced wallboard, the composite reinforced wallboard comprising a composite wallboard and a plurality of stringers of composite material, the wallboard and the plurality of stringers being symmetrically laid, the stringers and the wallboard being laid from prepreg, the plurality of stringers being adhesively bonded to the same side of the wallboard, the method comprising:
providing a metal plate on a side of the panel remote from the stringers, the orthographic projection of all of the stringers on the panel being within the orthographic projection of the metal plate on the panel;
Paving composite plates on one side surface, far away from the stringers, of the metal plate to form composite structural members, wherein the number of the composite plates is the same as that of the stringers, and the positions of the composite plates are in one-to-one correspondence with the positions of the stringers; the material of the composite plate is the same as that of the wallboard, the layering of the composite plate is symmetrical to the total layering of the stringers and the wallboard, the thickness of the composite plate is equal to the total thickness of the composite material at the joint surface of the stringers and the wallboard, the course width of the joint surface of the stringers and the wallboard is consistent with that of the composite plate, and the circumferential width of the composite plate is consistent with that of the joint surface;
and after the composite structural member is cured together, removing the metal plate and the composite plate to obtain the composite reinforced wallboard.
Further, providing a metal plate on a side of the wall plate remote from the stringers, comprising:
placing the metal sheet on a side of the wall panel remote from the stringers such that the orthographic projection of all of the stringers on the wall panel is within the orthographic projection of the metal sheet on the wall panel;
The metal plate is forced so that the metal plate is glued to the wall plate.
Further, removing the metal plate and the composite plate, comprising:
The metal plate and the composite plate are removed by machining.
On the other hand, in order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
The composite material reinforced wallboard comprises a composite material wallboard and a plurality of composite material stringers, wherein the wallboard and the stringers are symmetrically paved, the stringers are adhered to the same side of the wallboard, the metal plate is arranged on one side surface of the wallboard far away from the stringers, orthographic projections of all stringers on the wallboard are positioned in orthographic projections of the metal plate on the wallboard, the composite material plates are paved on one side surface of the metal plate far away from the stringers, the number of the composite material plates is the same as the number of the stringers, the positions of the composite material plates are in one-to-one correspondence with the positions of the stringers, the material of the composite material plates is the same as the material of the wallboard, the paving of the composite material plates is symmetrical with the total paving of the stringers, the thickness of the composite material plates is equal to the thickness of the composite material plates on one side surface of the stringers, the thickness of the composite material plates is equal to the thickness of the composite material plates on the same as the width of the composite material plates on the web, and the composite material plates on the web layer is the same as the width of the composite material plates on the web layer.
Further, the metal plate comprises a plurality of first metal plates and a plurality of second metal plates, the first metal plates are arranged on one side of the wall plate far away from the stringers, the number of the first metal plates is the same as that of the stringers, the positions of the first metal plates are in one-to-one correspondence with those of the stringers, the second metal plates are arranged between two adjacent first metal plates to connect the two adjacent first metal plates, the composite plate is arranged on one side of the first metal plates far away from the stringers, and the thickness of the second metal plates is consistent with that of the first metal plates.
Further, the thickness of the first metal plate is: Wherein For the thickness of the first metal plate,For the total thickness of the composite material at the joint surface of the stringer and the wallboard,For the total modulus of the composite material at the junction of the stringers and the panel,Is the modulus of the material of the first metal plate.
Further, the material of the metal plate may include any one of aluminum alloy, titanium alloy, and stainless steel.
Further, the heading width of the first metal plate is consistent with the heading width of the joint surface.
Further, a plurality of second metal plates are uniformly arranged at intervals, and a plurality of second metal plates are perpendicular to the first metal plates.
Further, the first metal plate and the second metal plate are both glued to the wall plate.
Further, the second metal plates are perpendicular to the first metal plate, and the composite plate is glued to the first metal plate.
The invention has the beneficial effects that:
The invention utilizes the good ductility of the metal plate to greatly eliminate the interlayer internal stress in the curing process of the composite material reinforced wallboard in the course and the annular direction of the composite material reinforced wallboard, and the composite material structural member formed by the composite material reinforced wallboard, the metal plate and the composite material plate is integrally formed into a symmetrical layer taking the metal plate as the symmetrical center, and the symmetrical layer taking the metal plate as the symmetrical center is adopted, so that the warping caused by the asymmetrical layer at the joint surface of the original stringer and the wallboard is eliminated, and the problem of deformation of the composite material reinforced wallboard in the curing process is effectively solved.
Drawings
FIG. 1 is a schematic view of a composite stiffened panel of the present invention.
FIG. 2 is a schematic representation of the deformation of a composite stiffened panel according to the present invention.
FIG. 3 is an overall flow chart of a method of controlling curing deformation of a composite reinforced wallboard in accordance with the present invention.
FIG. 4 is a schematic representation of an implementation of a method of controlling the curing deformation of a composite stiffened panel according to the present invention by providing a metal panel on a side of the panel remote from the stringers.
Fig. 5 is a schematic view of a composite structural member according to the present invention.
Fig. 6 is a plan view of the metal plate of the present invention.
Reference numerals illustrate:
1. The composite material reinforced wallboard comprises 11 parts of wallboard, 12 parts of stringer, 2 parts of metal plate, 21 parts of first metal plate, 22 parts of second metal plate and 3 parts of composite material plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Unless otherwise defined, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and the like means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof without precluding other elements or items.
The composite material has the characteristics of high strength and light weight, and is widely adopted in the manufacturing industry, but the special manufacturing process also brings unprecedented manufacturing difficulty. When the composite material reinforced wallboard 1 is manufactured by using a composite material, the composite material reinforced wallboard 1 needs to be cured at high temperature and high pressure, and due to the special property of the composite material, namely, the composite material is formed by mixing fibers and resin, the composite material reinforced wallboard 1 often deforms after being cured, and particularly the composite material reinforced wallboard 1 with a complex structure has multidimensional deformation, has great influence on structural mechanical properties and causes great difficulty on subsequent assembly.
Because the composite material layer is formed by a plurality of fiber directions, the current theoretical analysis on deformation is carried out based on the layer direction, and the curing deformation control in the process aspect is also the modification of the profile of a tooling for paving the composite material by combining the theoretical analysis. The method can not achieve reasonable precision in the prediction of the deformation of the composite reinforced wallboard 1, and causes uncertain factors to the design of a later-stage tool, so that the composite reinforced wallboard 1 manufactured by the modified tool can not achieve a satisfactory effect, and the composite reinforced wallboard 1 needs to be reworked to cause unnecessary loss. It can be seen that the effect of effectively controlling the curing deformation of the composite reinforced wallboard 1 is difficult to achieve by modifying the layering direction or the tool profile. In this regard, the present embodiment proposes a new structural design method for the problem of curing deformation of the composite reinforced wallboard 1.
The present embodiment provides a method for controlling the curing deformation of a composite reinforced wallboard 1, wherein, referring to fig. 1, the composite reinforced wallboard 1 includes a composite wallboard 11 and a plurality of stringers 12 of composite material, and due to the characteristics of the composite material, the composite reinforced wallboard 1 generates bending and twisting forces inside, so that the composite reinforced wallboard 1 deforms after curing, and the warpage caused by the asymmetric layering formed by the joint surfaces of the stringers 12 and the wallboards 11 is mainly reflected when the stringers 12 and the wallboards 11 are assembled. In order to reduce the curing deformation of the composite reinforced wallboard 1, the wallboard 11 and the stringers 12 are symmetrically laid, and the stringers 12 and the wallboard 11 have structural designs that need to be followed by themselves, i.e., the stringers 12 and the wallboard 11 each have a specific layering sequence, and the stringers 12 and the wallboard 11 are each laid from prepregs. In this embodiment, stringers 12 are symmetrically laid with [45/0/90/-45/0]s ] s and siding 11 is symmetrically laid with [45/-45/0/90/45/-45] s. A plurality of stringers 12 are glued to the same side of the panel 11, the stringers 12 being spaced apart in parallel. Although the stringers 12 and the siding 11 are designed as symmetrical decking, in theory, deformation will not occur after curing, and because the joint between the stringers 12 and the siding 11 cannot meet the design of symmetrical decking, there will be significant deformation, as shown in fig. 2, while downward warpage occurs in the aeronautical direction and upward deformation occurs in the circumferential direction, resulting in saddle-shaped warpage as a whole. The joint of the stringer 12 and the panel 11 forms a total layer after the stringer 12 and the panel 11 are bonded such that the total layer of [45/0/90/-45/0/0/-45/90/0/45/45/-45/0/90/45/-45/-45/45/90/0/-45/45] is symmetrical with the layer of the bonded area of the stringer and the panel.
Specifically, referring to fig. 3 and 4, the method for controlling the curing deformation of the composite reinforced wallboard 1 includes:
In step S1, the metal panel 2 is positioned on a side of the panel 11 remote from the stringers 12, with the orthographic projection of all stringers 12 on the panel 11 being within the orthographic projection of the metal panel 2 on the panel 11.
According to the manufacturing requirements of the required composite material reinforced wallboard 1, a plurality of stringers 12 are glued to the same side of the wallboard 11, the stringers 12 are arranged in parallel at intervals, and an asymmetric paving layer is generated at the joint surface of the stringers 12 and the wallboard 11 and can deform when being cured at high temperature and high pressure. To reduce the curing deformation of the composite stiffened panel 1, the asymmetric lay-up needs to be treated whereby the metal panel 2 is disposed on the side of the panel 11 remote from the stringers 12, the orthographic projection of all stringers 12 onto the panel 11 being within the orthographic projection of the metal panel 2 onto the panel 11. The metal plate 2 is used as a base, the ductility of the metal is good, and the internal stress generated in the curing process is counteracted by using the metal plate 2. An electrochemical corrosion occurs between the metal plate 2 and the composite material, and thus the material of which the metal plate 2 is made may include any one of aluminum alloy, titanium alloy or stainless steel, preferably aluminum alloy. The stringers 12 and the panel 11 are typically formed by laying up layers of prepreg material, which is in a wet condition during processing, wherein the metal sheet 2 is placed on a side of the panel 11 remote from the stringers 12 such that the orthographic projection of all stringers 12 onto the panel 11 is within the orthographic projection of the metal sheet 2 onto the panel 11, and the metal sheet 2 is bonded to the panel 11 by applying a force to the metal sheet 2.
Step S2, referring to figures 3 and 5, paving composite plates 3 on one side surface of the metal plate 2 far away from the stringers 12 to form composite structural members, wherein the number of the composite plates 3 is the same as that of the stringers 12, the positions of the composite plates 3 are in one-to-one correspondence with that of the stringers 12, the material of the composite plates 3 is the same as that of the wallboards 11, the layering of the composite plates 3 is symmetrical with the total layering of the stringers 12 and the wallboards 11, the thickness of the composite plates 3 is equal to the total thickness of the composite materials at the joint surface of the stringers 12 and the wallboards 11, the course width of the composite plates 3 is consistent with that of the joint surface, and the circumferential width of the composite plates 3 is consistent with that of the joint surface.
Specifically, the composite plates 3 are laid on a side of the metal plate 2 away from the stringers 12, and by arranging the composite plates 3 such that the composite structural members formed by the composite stiffened wall plate 1, the metal plate 2 and the composite plates 3 are integrally a symmetrical lay-up, the number of composite plates 3 is the same as the number of stringers 12. Each stringer 12 has an abutting surface with the wall plate 11, and the positions of the composite plates 3 are in one-to-one correspondence with the positions of the stringers 12, and each composite plate 3 is in one-to-one correspondence with the abutting surface of each stringer 12 with the wall plate 11. After the stringers 12 and the wall panels 11 are bonded, a total layer is formed at the bonding surface of the stringers 12 and the wall panels 11, the total layer of the stringers 12 and the wall panels 11 is [45/0/90/-45/0/0/-45/90/0/45/45/-45/0/90/45/-45/-45/45/90/0/-45/45] s symmetrical layer, the material of the composite board 3 is the same as that of the wall panels 11, and the layer of the composite board 3 is symmetrical with the total layer of the stringers 12 and the wall panels 11. The thickness of the composite plate 3 is equal to the total thickness of the composite at the joint surface of the stringers 12 and the wall plate 11, the course width of the composite plate 3 is consistent with the course width of the joint surface, and the circumferential width of the composite plate 3 is consistent with the circumferential width of the joint surface.
And S3, after the composite structural member is cured together, removing the metal plate 2 and the composite plate 3 to obtain the complete composite reinforced wallboard 1.
Specifically, the composite structural member is placed into an autoclave for high-temperature high-pressure curing molding, after the composite structural member is cured together, the metal plate 2 and the composite plate 3 are removed from the composite reinforced wallboard 1 in a machining mode, so that the composite reinforced wallboard 1 is obtained, the composite reinforced wallboard 1 is of a combined structure of the stringers 12 and the wallboard 11, and the obtained composite reinforced wallboard 1 is flat and free from deformation and warping.
The interlayer internal stress of the composite material reinforced wallboard 1 in the curing process is greatly eliminated in the course and in the circumferential direction by utilizing the good ductility of the metal plate 2, and the composite material structural member formed by the composite material reinforced wallboard 1, the metal plate 2 and the composite material plate 3 is integrally formed into a symmetrical layer by taking the metal plate 2 as the symmetry center by arranging the composite material plate 3, and the symmetrical layer by taking the metal plate 2 as the symmetry center is adopted, so that the warping caused by the asymmetrical layer at the joint surface of the original stringer 12 and the wallboard 11 is eliminated, and the problem of deformation of the composite material reinforced wallboard 1 in the curing process is effectively solved.
The embodiment further provides a composite structural member, referring to fig. 5 and 6, including the composite reinforced wallboard 1, the metal plate 2 and the composite board 3, the composite reinforced wallboard 1 includes a wallboard 11 made of composite material and a plurality of stringers 12 made of composite material, the wallboard 11 and the stringers 12 are all symmetrically paved, the stringers 12 are glued on the same side of the wallboard 11, the metal plate 2 is arranged on a side of the wallboard 11 far away from the stringers 12, the orthographic projection of all the stringers 12 on the wallboard 11 is located in the orthographic projection of the metal plate 2 on the wallboard 11, the composite board 3 is paved on a side of the metal plate 2 far away from the stringers 12, the number of the composite boards 3 is the same as the number of the stringers 12, the positions of the composite boards 3 are in one-to-one correspondence with the stringers 12, the material of the composite boards 3 is the same as the wallboard 11, the paving of the composite boards 3 is symmetrical with the total paving of the stringers 12 and the wallboard 11, the thickness of the composite boards 3 is equal to the width of the composite boards 3 at the joint face of the stringers 11 and the width of the composite boards 3 is the joint face to the joint face of the composite boards 3.
Further, the metal plate 2 comprises a plurality of first metal plates 21 and a plurality of second metal plates 22, and the first metal plates 21 and the second metal plates 22 are glued to the wall plate 11. The first metal plates 21 are arranged on one side surface of the wall plate 11 far away from the stringers 12, the number of the first metal plates 21 is the same as that of the stringers 12, the positions of the first metal plates 21 are in one-to-one correspondence with those of the stringers 12, each first metal plate 21 is in one-to-one correspondence with each stringer 12 and the joint surface of the wall plate 11, and the heading width of the first metal plates 21 is consistent with that of the joint surface. The second metal plates 22 are disposed between the adjacent two first metal plates 21 to connect the adjacent two first metal plates 21, thereby improving the structural stability of the metal plate 2. The second metal plates 22 are uniformly spaced apart, and the second metal plates 22 are perpendicular to the first metal plate 21. The composite plate 3 is arranged on a side of the first metal plate 21 remote from the stringers 12, the composite plate 3 being glued to the first metal plate 21.
The composite material reinforced wallboard 1 is in a high-temperature environment during curing, the temperature during curing is 180 degrees, the metal plate 2 can be expanded and deformed due to the thermal expansion effect, the metal plate 2 is arranged into a plurality of first metal plates 21 and a plurality of second metal plates 22, the second metal plates 22 are arranged between two adjacent first metal plates 21 to connect the two adjacent first metal plates 21 so as to form a whole grid metal plate 2, compared with the whole grid metal plate 2 which is directly used, the composite material reinforced wallboard is characterized in that the light weight manufactured by the metal plate 2 can be reduced, the expansion probability is reduced, the composite material reinforced wallboard 1 can be conveniently transported and transferred due to the light weight manufactured by the metal plate 2, and meanwhile, the material consumption of the metal plate 2 can be reduced, and the cost is saved. And set up metal sheet 2 into a plurality of first metal sheets 21 and a plurality of second metal sheet 22, thereby second metal sheet 22 sets up and links to each other two adjacent first metal sheets 21 between two adjacent first metal sheets 21 and form a monoblock net metal sheet 2, thereby net metal sheet 2 also can play the effect of being convenient for hot air circulation when the high temperature solidification, is favorable to processing.
Specifically, the thickness of the first metal plate 21 is: Wherein For the thickness of the first metal plate 21,For the total thickness of the composite material at the interface of stringer 12 and panel 11,For the total modulus of the composite material at the interface of stringer 12 and panel 11,Is the modulus of the material of the first metal plate 21. The purpose of reducing the solidification deformation of the composite material reinforced wallboard 1 is better achieved by reasonably setting the thickness of the first metal plate 21. Because the composite material reinforced wallboard 1 expands with heat and contracts with cold in the curing process, the composite material reinforced wallboard 1 generates internal stress, and the internal stress can enable the composite material reinforced wallboard 1 to deform in a telescopic way, the metal plate 2 and the composite material reinforced wallboard 1 are required to deform together, and the deformation consistency of the metal plate 2 and the composite material reinforced wallboard 1 is ensured. The degree of deformation of the metal plate 2 is determined by the thickness of the metal plate 2 and the material of the metal plate 2 itself, and therefore the thickness of the first metal plate 21 is calculated by the above formula so that the metal plate 2 and the composite material-reinforced wall plate 1 can be deformed uniformly. The thickness of the second metal plate 22 corresponds to the thickness of the first metal plate 21.
The composite structural member formed by the composite reinforced wallboard 1, the metal plate 2 and the composite plate 3 is integrally a symmetrical layer with the metal plate 2 as a symmetrical center, and the interlayer internal stress of the composite reinforced wallboard 1 in the course and the annular direction of the composite reinforced wallboard 1 is greatly eliminated by utilizing the good ductility of the metal plate 2. After solidification, the metal plate 2 and the composite plate 3 can be removed from the reinforced composite wallboard 1 by machining, in this embodiment, a cutting machine is used to cut the bonding area between the metal plate 2 and the wallboard 11, and when the metal plate 2 is cut, one side of the cutting machine, which is close to the metal plate 2, is cut, and after the cutting is finished, a grinding machine is used to grind the cutting surface, so as to obtain the reinforced composite wallboard 1. The composite material reinforced wallboard 1 is of a combined structure of the stringers 12 and the wallboard 11, and the obtained composite material reinforced wallboard 1 is flat and free of deformation and warping. The adoption of the symmetrical layering taking the metal plate 2 as the symmetry center eliminates the warping caused by the asymmetrical layering at the joint surface of the original stringer 12 and the wallboard 11, and the deformation problem of the composite reinforced wallboard 1 in the curing process can be effectively solved by using the composite structural member to produce the composite reinforced wallboard 1.
The invention has the beneficial effects that:
The invention utilizes the good ductility of the metal plate 2 to greatly eliminate the interlayer internal stress of the composite material reinforced wallboard 1 in the course and the annular direction of the composite material reinforced wallboard 1 in the curing process, and the composite material structural member formed by the composite material reinforced wallboard 1, the metal plate 2 and the composite material plate 3 is integrally a symmetrical layer taking the metal plate 2 as the symmetrical center, and the symmetrical layer taking the metal plate 2 as the symmetrical center is adopted, so that the warping caused by the asymmetrical layer at the joint surface of the original stringer 12 and the wallboard 11 is eliminated, and the problem of deformation of the composite material reinforced wallboard 1 in the curing process is effectively solved.
While embodiments of the present application have been described in detail hereinabove, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments. It is to be understood that such modifications and variations are within the scope and spirit of the application as described herein. Moreover, the application described herein is capable of other embodiments and of being practiced or of being carried out in various ways.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Claims (10)

1. A method of controlling curing deformation of a composite reinforced wallboard, the composite reinforced wallboard (1) comprising a composite wallboard (11) and a plurality of composite stringers (12), the wallboard (11) and the stringers (12) being symmetrically laid, the stringers (12) and the wallboard (11) being laid from prepregs, the stringers (12) being glued to the same side of the wallboard (11), the method comprising:
Providing a metal plate (2) on a side of the wall plate (11) remote from the stringers (12), the orthographic projection of all the stringers (12) on the wall plate (11) being located within the orthographic projection of the metal plate (2) on the wall plate (11);
Paving composite plates (3) on one side surface, far away from the stringers (12), of the metal plate (2) to form composite structural members, wherein the number of the composite plates (3) is the same as that of the stringers (12), the positions of the composite plates (3) are in one-to-one correspondence with those of the stringers (12), the material of the composite plates (3) is the same as that of the wallboards (11), the total layering of the composite plates (3) and the stringers (12) and the wallboards (11) is symmetrical, the thickness of the composite plates (3) is equal to the total thickness of composite materials at the joint surfaces of the stringers (12) and the wallboards (11), the course width of the joint surfaces of the stringers (12) and the wallboards (11) is consistent with that of the composite plates (3), and the circumferential width of the composite plates (3) is consistent with that of the joint surfaces;
And after the composite structural member is cured together, removing the metal plate (2) and the composite plate (3) to obtain the composite reinforced wallboard (1).
2. A method of controlling the setting deformation of a composite stiffened panel according to claim 1, wherein providing a metal panel (2) on a side of the panel (11) remote from the stringer (12) comprises:
-placing the metal sheet (2) on a side of the wall plate (11) remote from the stringers (12) such that the orthographic projection of all the stringers (12) on the wall plate (11) is located within the orthographic projection of the metal sheet (2) on the wall plate (11);
The metal plate (2) is forced so that the metal plate (2) is glued to the wall plate (11).
3. A method of controlling the curing deformation of a composite reinforced wallboard according to claim 1, wherein removing the metal sheet (2) and the composite sheet (3) comprises:
-removing the metal sheet (2) and the composite sheet (3) by means of machining.
4. A composite structural member is characterized by comprising a composite reinforced wallboard (1), a metal plate (2) and a composite board (3) as claimed in claim 1, wherein the composite reinforced wallboard (1) comprises a composite wallboard (11) and a plurality of composite stringers (12), the wallboard (11) and the stringers (12) are symmetrically paved, the stringers (12) are glued on the same side of the wallboard (11), the metal plate (2) is arranged on one side of the wallboard (11) far away from the stringers (12), the orthographic projection of all stringers (12) on the wallboard (11) is positioned in the orthographic projection of the metal plate (2) on the wallboard (11), the composite board (3) is paved on one side of the metal plate (2) far away from the stringers (12), the number of the composite boards (3) is the same as the number of the stringers (12), the composite boards (3) are in the same position as the stringers (12), the composite boards (3) are in the total layer (12), the thickness of the composite plate (3) is equal to the total thickness of the composite material at the joint surface of the stringer (12) and the wallboard (11), the course width of the joint surface of the stringer (12) and the wallboard (11) is consistent with the course width of the composite plate (3), and the circumferential width of the composite plate (3) is consistent with the circumferential width of the joint surface.
5. A composite structural member according to claim 4, wherein the metal plates (2) comprise a plurality of first metal plates (21) and a plurality of second metal plates (22), the first metal plates (21) are arranged on a side of the wall plate (11) away from the stringers (12), the number of the first metal plates (21) is the same as the number of the stringers (12), the positions of the first metal plates (21) are in one-to-one correspondence with the positions of the stringers (12), the second metal plates (22) are arranged between two adjacent first metal plates (21) to connect the two adjacent first metal plates (21), the composite plates (3) are arranged on a side of the first metal plates (21) away from the stringers (12), and the thickness of the second metal plates (22) is consistent with the thickness of the first metal plates (21).
6. A composite structural member according to claim 5, wherein the first metal plate (21) has a thickness of: Wherein For the thickness of the first metal plate (21),For the total thickness of the composite material at the joint surface of the stringer (12) and the wallboard (11),For the total modulus of the composite material at the joint surface of the stringer (12) and the wallboard (11),Is the modulus of material of the first metal plate (21).
7. A composite structural member according to claim 4, wherein the metal plate (2) is made of any one of an aluminium alloy, a titanium alloy or stainless steel.
8. A composite structural member according to claim 5, wherein the first metal sheet (21) has a width in heading which corresponds to the width in heading of the faying surface.
9. A composite structural member according to claim 5, wherein a plurality of said second metal plates (22) are arranged at regular intervals, and wherein a plurality of said second metal plates (22) are arranged perpendicularly to said first metal plates (21).
10. A composite structural member according to claim 5, wherein said first metal plate (21) and said second metal plate (22) are both glued ‌ to said wall plate (11), and said composite plate (3) is glued to said first metal plate (21).
CN202411924412.4A 2024-12-24 2024-12-24 A method for controlling the curing deformation of composite material reinforced wall panels Active CN119589992B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202411924412.4A CN119589992B (en) 2024-12-24 2024-12-24 A method for controlling the curing deformation of composite material reinforced wall panels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202411924412.4A CN119589992B (en) 2024-12-24 2024-12-24 A method for controlling the curing deformation of composite material reinforced wall panels

Publications (2)

Publication Number Publication Date
CN119589992A CN119589992A (en) 2025-03-11
CN119589992B true CN119589992B (en) 2025-09-30

Family

ID=94844372

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202411924412.4A Active CN119589992B (en) 2024-12-24 2024-12-24 A method for controlling the curing deformation of composite material reinforced wall panels

Country Status (1)

Country Link
CN (1) CN119589992B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111645341A (en) * 2020-06-11 2020-09-11 中国航空制造技术研究院 A method for controlling the solidification deformation of composite reinforced wall panels
CN112238951A (en) * 2019-07-19 2021-01-19 波音公司 Method and apparatus for forming reinforced panel, method for forming reinforced component

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8628717B2 (en) * 2010-06-25 2014-01-14 The Boeing Company Composite structures having integrated stiffeners and method of making the same
IT202000025525A1 (en) * 2020-10-28 2022-04-28 Leonardo Spa MANUFACTURING PROCEDURE OF REINFORCED PANEL WITH OPEN SECTION RAILS FOR AERONAUTICAL APPLICATION
JP2023093151A (en) * 2021-12-22 2023-07-04 三菱ケミカル株式会社 METHOD FOR MANUFACTURING METAL-FRP COMPOSITE AND METAL-FRP COMPOSITE
CN117261282A (en) * 2023-09-27 2023-12-22 中航西安飞机工业集团股份有限公司 Co-curing forming device for composite material I-shaped reinforced wallboard and use method
CN117799191A (en) * 2024-01-30 2024-04-02 中国民航大学 Curvature-designable hybrid symmetrical bistable structure and preparation method and application thereof
CN118269376A (en) * 2024-04-10 2024-07-02 中航西安飞机工业集团股份有限公司 Technological method for reducing solidification deformation of reinforced wallboard

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112238951A (en) * 2019-07-19 2021-01-19 波音公司 Method and apparatus for forming reinforced panel, method for forming reinforced component
CN111645341A (en) * 2020-06-11 2020-09-11 中国航空制造技术研究院 A method for controlling the solidification deformation of composite reinforced wall panels

Also Published As

Publication number Publication date
CN119589992A (en) 2025-03-11

Similar Documents

Publication Publication Date Title
KR101445213B1 (en) Magnesium alloy honeycomb board and preparation method thereof
CN110181835B (en) Forming method of variable-section double-taper aramid fiber honeycomb sandwich structure
EP2128019B2 (en) Modified blade stiffener and fabrication method therefor
CN104175616B (en) Class cellular composite material battenboard and hot-press molding method thereof
US8636865B2 (en) Method of making a composite fibre component with thermoplastic stiffening elements
CN106515091A (en) Aluminum honeycomb sandwich plate of high thermal conductivity carbon fiber panel pre-embedded heat pipe and preparation method thereof
US9505204B2 (en) Method for making and joining composite sandwich shell edge joint
CN114274549B (en) Preparation facilities of fibre reinforced composite material honeycomb core
US20110303357A1 (en) Procedure for the manufacture of large parts of composite material controlling the thickness of the edges thereof
CN111572053A (en) Processing method of composite material test sample strip
US20070102839A1 (en) Method to control thickness in composite parts cured on closed angle tool
CN114179462A (en) Self-adhesive composite material honeycomb plate and preparation method thereof
CN119589992B (en) A method for controlling the curing deformation of composite material reinforced wall panels
CN115742370B (en) Device and method for co-curing molding of composite I-shaped reinforced wall panels with curved structure
US20150064393A1 (en) Laminate for joining parts, and method and system for joining parts
CN112141315B (en) Composite material wall panel structure of aircraft control surface and forming system and method thereof
CN117341228A (en) Mould compensation method for curing deformation of reinforced wallboard
CN118269376A (en) Technological method for reducing solidification deformation of reinforced wallboard
Wang et al. Design and analysis of a novel carbon fiber reinforced polymer Sandwich adhesive joint
CN110014664A (en) A kind of forming method of deep camber type face PMI cystosepiment
CN117601508A (en) Flexible aramid fiber honeycomb core suitable for complex curved surface and manufacturing method thereof
AU2003303851A1 (en) Method for production of sandwich panel core from composites
CN114851591A (en) A method for repairing cracks in metal structures using thermoplastic carbon fiber composites
Zheng et al. Research on Heat Curing Process and Mold Design Method of Composite Panels
CN205836041U (en) A kind of flexible die of forming composite stringer

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant