KR100970377B1 - Connecting member for composite panel and aluminium honeycomb panel structure assembled thereby - Google Patents

Abstract

PURPOSE: A complex panel bonding member and an aluminum honeycomb panel structure assembled by the same are provided to reduce weight and improve bond strength between a horizontal member and a vertical member. CONSTITUTION: A complex panel bonding member(100) comprises a first side wall(102), a second side wall(104), a reinforcement plate(106), and a foamed core material(108). The first side wall and the second side wall comprise a fastening hole. The reinforcement plate is formed inside an inner portion. The reinforcement plate is attached to the first side wall.

Description

Bonding member for composite panel and Aluminum honeycomb panel structure assembled thereby

The present invention relates to a composite panel joining member and an aluminum honeycomb panel structure assembled thereby. More specifically, when manufacturing a structure by assembling the core material made of aluminum honeycomb (aluminum honeycomb) and the aluminum honeycomb panel made of the face material surrounding the core material composite panel joining member to improve the strength of the joint between the composite panel and using the same It relates to an aluminum honeycomb panel structure to be assembled.

In general, a composite panel is a so-called sandwich panel, which improves its structural characteristics by inserting a thick core material having a lower rigidity, strength, and density than the face material and attaching it between thin and high-density face plates having strong rigidity. The composite panel has characteristics such as light weight, firmness, corrosion resistance, weather resistance, etc., depending on the molding material is widely used in various fields.

Among such composite panels, a honeycomb pannel formed by applying a honeycomb structure to a core material has recently been in the spotlight.

The honeycomb panel is made of a structure in which cells with hexagonal columns form continuous shapes adjacent to each other, such as the shape of a honeycomb, and is attached to the upper and lower surfaces of the honeycomb panel, which is strong against bending and warping, and exhibits excellent durability and strength. It is a useful member to be used as a lightweight structure.

In particular, the aluminum honeycomb panel formed by forming a core material having a honeycomb structure of aluminum or including aluminum by a coating method has a feature of being lightweight but high in strength, water resistance, and flame resistance.

Since the aluminum honeycomb panel is formed of a flat plate, when making a structure having a specific shape using them, a plurality of panels should be joined to each other. When the aluminum honeycomb panel is joined, the strength of the joint is not high, so it is easy to be damaged. There was a problem.

In order to solve such a problem, conventionally, the aluminum honeycomb panels are bent to the junction of the lower plate 12 and the vertical plate 14 as shown in FIG. A method of joining the padding member 16 to be in contact with the lower plate 12 and the vertical plate 14, respectively, has been proposed. In this method, a space is formed at the joining portion and the joining area of the padding member 16 is There was a problem that the strength of the joint was lowered due to being narrow and uneven.

In addition, as shown in FIG. 2, a vertical plate 24 formed in a form in which one side of the core material is not inserted is vertically disposed on the lower plate 22, and a 'T' type connecting member formed of aluminum material ( In the state where the bottom surface of the plate 26 is bonded to the lower plate 22, the vertical plate 24 and the 'T' type connecting member 26 may be fastened by using the bolts 28. However, when the bonding structure is formed using this method, there is a problem that the total weight is increased due to the weight of the 'T' type connecting member 26 formed of aluminum.

Accordingly, the development of a bonding member for joining the aluminum honeycomb panel is required.

In order to solve the above problems, the present invention improves the bonding strength between the vertical and horizontal members during the vertical joining or arbitrary angle joining of the aluminum honeycomb panel, and the uniform strength against external forces such as bending, torsion or tension applied to the joint. It is an object of the present invention to provide a composite panel joining member having a lightweight property and an aluminum honeycomb panel structure assembled using the same.

The present invention in order to achieve the above object is a first side wall formed with a fastening hole; A second sidewall extending at one end of the first sidewall and formed at a predetermined angle with the first sidewall and having the fastening hole; A reinforcement plate having one end attached to the first side wall and the other end attached to the second side wall, the reinforcement plate being provided at an inner portion of the first side wall and the second side wall formed at a thermal angle; And a foam core material filled in a space surrounded by the first side wall, the second side wall, and the reinforcement plate.

Here, the first side wall, the second side wall and the reinforcing plate is a composite material mixed with any one of the reinforcing fibers selected from carbon fiber, glass fiber, aramid fiber and any one resin selected from epoxy and polyester It characterized in that it is formed to include.

In addition, the foam core material may include any one of urethane foam, polyethylene foam, polyvinyl chloride foam.

In addition, a fastening hole may be formed in the first sidewall and the second sidewall.

On the other hand, the present invention is a first panel made of aluminum honeycomb core; A second panel whose end portion is in contact with one side of the first panel and is joined to the first panel, the second panel including aluminum honeycomb as a core; And a composite panel joining member provided at an edge formed by contacting the first panel and the second panel to be attached to the first panel and the second panel, respectively, wherein the composite panel joining member is formed with a fastening hole. A first sidewall extending from one end of the first sidewall, the second sidewall being formed at a predetermined angle with the first sidewall, the second sidewall having the fastening hole, one end of which is attached to the first sidewall, and the other end of the first sidewall It is attached to the second side wall, the reinforcement plate is provided in the inner side portion is formed by forming the first side wall and the second side wall is filled in a space surrounded by the first side wall, the second side wall and the reinforcement plate It provides an aluminum honeycomb panel structure comprising a foam core material.

At this time, the end of the second panel in contact with the first panel is characterized in that the reinforcing cap covering the end is provided.

The composite panel joining member may be fastened to the first panel and the second panel by bolts or rivets.

In addition, the first panel, the second panel, the composite panel bonding member and the reinforcing cap contact the surface with an adhesive is applied to the first panel, the second panel, the composite panel bonding member and the reinforcing cap It is characterized in that the adhesive.

In addition, the first side wall, the second side wall, the reinforcing plate and the reinforcing cap is mixed with any one of the reinforcing fibers selected from carbon fiber, glass fiber, aramid fiber and any one selected from epoxy and polyester. Characterized in that it comprises a composite material.

In addition, the foam core material is characterized in that it comprises any one of urethane foam, polyethylene foam, polyvinyl chloride foam.

According to the present invention it is possible to improve the strength of each joint portion of the composite panel to be bonded to each other in the vertical or arbitrary angle bonding of the aluminum honeycomb panel, it is possible to standardize the operation when performing the bonding operation. In addition, there is an advantage that the weight of the structure can be achieved when manufacturing the structure using the aluminum honeycomb panel.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, detailed description is abbreviate | omitted when it is judged that it may obscure the summary of this invention. In addition, preferred embodiments of the present invention will be described below, but the technical idea of the present invention may be implemented by those skilled in the art without being limited or limited thereto.

3 is a cross-sectional view of the composite panel bonding member according to a preferred embodiment of the present invention.

Hereinafter, the composite panel bonding member 100 according to a preferred embodiment of the present invention with reference to FIG.

The composite panel joining member 100 includes a first side wall 102, a second side wall 104, a reinforcing plate 106 and a foam core 108.

The first sidewall 102 and the second sidewall 104 are formed in a plate shape, the second sidewall 104 extends at one end of the first sidewall 102 and has a vertical or constant angle with the first sidewall 102. Achieve.

The first side wall 102 and the second side wall 104 are attached to the surfaces of the different composite panel to be bonded to the two composite panels.

A fastening hole (not shown) may be drilled in the first sidewall 102 and the second sidewall 104 such that a fastening means such as a rivet or bolt may be fastened to the composite panel through the fastening hole.

The reinforcing plate 106 is provided on an inner side portion in which the first sidewall 102 and the second sidewall 104 are formed at a thermal angle, one end of which is attached to the first sidewall 102, and the other end thereof is the second sidewall 104. ) To prevent bending or twisting of the composite panel joining member 100 due to a load or an external force applied to the first side wall 102 or the second side wall 104.

The first sidewall 102, the second sidewall 104, and the reinforcing plate 106 may be formed using a composite material formed by mixing reinforcing fibers and a resin.

In this case, the reinforcing fibers used may be any one selected from carbon fibers, glass fibers, and aramid fibers.

These reinforcing fibers are light, have excellent durability, impact resistance, abrasion resistance, etc., and do not rust, are not deformed by heat, and are easy to process. The first fiber formed by using a composite material formed by mixing these reinforcing fibers with a resin The side wall 102, the second side wall 104, and the reinforcing plate 106 will exhibit a strength high enough to replace a metal or ceramic material.

The resin which is mixed with such reinforcing fibers to form a composite material may be any one of resins selected from epoxy and polyester.

Preferably, the composite material is made of carbon fiber reinforced plastics formed by mixing carbon fiber and epoxy. Carbon fiber reinforced resin has a specific gravity of about 1/2 compared to aluminum alloy, and its tensile strength is about 10 times, which is excellent in terms of specific strength (tensile strength / specific gravity). It is suitable to be used as a material of the composite panel joining member 100 of the present invention for joining the aluminum honeycomb panel used as a structural material such as gas or ship.

The foam core 108 is filled in the space portion formed by being surrounded by the first side wall 102, the second side wall 104, and the reinforcing plate 106. The foam core member 108 reinforces the composite panel joining member 100 to prevent the composite panel joining member 100 from being warped or warped by a force applied to the first sidewall 102 or the second sidewall 104. Do it.

The foam core material 108 may include any one of urethane foam, polyethylene foam, and polyvinyl chloride foam. The foam member is filled in the internal space of the composite panel joining member 100 and cured, thereby allowing the composite panel to be formed by external force. Prevents deformation of the shape of the bonding member 100, and has the advantage of being lightweight.

4 is a cross-sectional view of the aluminum honeycomb panel structure before assembly, Figure 5 is a cross-sectional view of the aluminum honeycomb panel structure in the assembled state.

Hereinafter, the aluminum honeycomb panel structure 200 assembled using the composite panel joining member 100 will be described.

The aluminum honeycomb panel structure 200 is formed by joining an aluminum honeycomb panel made of aluminum honeycomb as a core, and may be formed in various forms according to the joining method of the aluminum honeycomb panel, but here, two aluminum honeycomb panels That is, the aluminum honeycomb panel structure 200 will be described with a focus on joining the first panel 210a and the second panel 210b.

The aluminum honeycomb panel structure 200 is formed by bonding the first panel 210a and the second panel 210b by using the composite panel bonding member 100.

The first panel 210a and the second panel 210b are the same aluminum honeycomb panel, and the core material is formed of aluminum honeycomb, and the face material attached to both sides of the core material is formed by mixing carbon fiber and epoxy resin. It can be formed as.

4 and 5, the first panel 210a and the second panel 210b are in contact with each other in a vertical state, but in some cases, the first panel 210a and the second panel 210b may have various angles. You can also contact. Accordingly, the angle between the first sidewall 102 and the second sidewall 104 of the composite panel bonding member 100 may be determined.

In the drawing, an end of the second panel 210b vertically contacting the first panel 210a horizontally placed may be provided with a reinforcing cap 220 corresponding to the end shape of the second panel 210b.

Reinforcement cap 220 is the first side plate 222 and the second side plate 224 and one end facing each other disposed in contact with the end of the first side plate 222, the other end of the second side plate ( It consists of a connecting plate 226 in contact with the end of 224 and has a cross-sectional shape of which one side is opened in a 'c' shape.

An adhesive is applied to a surface where the reinforcing cap 220 and the second panel 210b contact each other, and the reinforcing cap 220 and the second panel 210b are bonded to each other by the adhesive.

Reinforcement cap 220 is any one of the reinforcing fibers selected from carbon fibers, glass fibers, aramid fibers, such as the first side wall 102 and the second side wall 104, any one of the epoxy and polyester selected from It can be formed using a mixed material.

The reinforcing cap 220 is in contact with the first panel (210a) perpendicular to the role of reinforcing the junction of the second panel (210b) easy to break.

The second panel 210b is disposed perpendicular to the first panel 210a such that the lower surface of the reinforcing cap 220 contacts the first panel 210b while the reinforcing cap 220 is covered. Composite panel joining members 100 are disposed at both corner portions formed by contacting 210a and the second panel 210b.

In this case, the first side wall 102 and the second side wall 104 of the composite panel joining member 100 are attached to the reinforcing cap 220 covered by the first panel 210a and the second panel 210b, respectively.

In this case, the composite panel joining member 100 and the first panel 210a and the reinforcing cap 220 in contact therewith are fastened to each other by an adhesive or provided on the first sidewall 102 and the second sidewall 104. It may be coupled by a fastening means such as a rivet 230 or a bolt inserted into and fastened to the first panel 210a and the second panel 210b.

The aluminum honeycomb panel structure 200 assembled as described above is bonded to be used as a structural material for an aircraft, a ship, etc., since durability against warpage and tension is improved.

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes, and substitutions may be made by those skilled in the art without departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

1 and 2 are cross-sectional views of "T" type structures conventionally formed using honeycomb panels.

3 is a cross-sectional view of the composite panel bonding member according to a preferred embodiment of the present invention.

4 is a cross-sectional view of the aluminum honeycomb panel structure before assembly.

5 is a cross-sectional view of the aluminum honeycomb panel structure in the assembled state.

<Description of the symbols for the main parts of the drawings>

100: composite panel joining member 102: first side wall

104: second side wall 106: reinforcement plate

108: foam core material 200: aluminum honeycomb panel structure

210a, 210b: Aluminum honeycomb panel 220: Reinforcement cap

230: rivet

Claims (10)

A first sidewall on which a fastening hole is formed; A second sidewall extending at one end of the first sidewall and formed at a predetermined angle with the first sidewall, the second sidewall having the fastening hole; A reinforcement plate having one end attached to the first side wall and the other end attached to the second side wall, the reinforcement plate being provided at an inner portion of the first side wall and the second side wall formed at a thermal angle; A foam core material filled in a space surrounded by the first side wall, the second side wall and the reinforcing plate; And A first side plate, a second side plate disposed facing the first side plate, and one end having a connection plate in contact with an end of the first side plate and the other end of which is in contact with an end of the second side plate. Composite panel joining member comprising a reinforcing cap having an open cross-sectional shape. delete The method of claim 1, The first side wall, the second side wall and the reinforcing plate Composite panel joining member, characterized in that formed including a composite material mixed with any one of the reinforcing fibers selected from carbon fiber, glass fiber, aramid fiber and any one resin selected from epoxy and polyester. The method of claim 1, The foam core material is a composite panel joining member comprising any one of urethane foam, polyethylene foam, polyvinyl chloride foam. A first panel made of aluminum honeycomb as a core; A second panel whose end portion is in contact with one side of the first panel and is joined to the first panel, the second panel including aluminum honeycomb as a core; A composite panel joining member provided at an edge formed by contacting the first panel and the second panel and attached to the first panel and the second panel, respectively; And A first side plate, a second side plate disposed facing the first side plate and one end is in contact with the end of the first side plate, the other end is provided with a connecting plate in contact with the end of the second side plate It has an open cross-sectional shape, including a reinforcing cap covering the end of the second panel, The composite panel joining member may include a first sidewall on which a fastening hole is formed, a second sidewall extending from one end of the first sidewall, having a predetermined angle with the first sidewall, and having the fastening hole, and one end of the first sidewall. A reinforcement plate attached to the first side wall and the other end attached to the second side wall, the reinforcement plate being provided on the inner side where the first side wall and the second side wall are formed in a thermal angle, and the first side wall and the second side wall and the reinforcement plate. An aluminum honeycomb panel structure comprising a foam core material filled in an enclosed space. delete The method of claim 5, The composite panel joining member is an aluminum honeycomb panel structure, characterized in that fastening to the first panel and the second panel by a bolt or rivet. The method according to claim 5 or 7, The first panel, the second panel, the composite panel joining member and the reinforcing cap contact with each other the adhesive is applied to the first panel, the second panel, the composite panel bonding member and the reinforcing cap is bonded Aluminum honeycomb panel structure, characterized in that. The method of claim 5, The first side wall, the second side wall, the reinforcement plate and the reinforcement cap Composite panel joining member, characterized in that formed including a composite material mixed with any one of the reinforcing fibers selected from carbon fiber, glass fiber, aramid fiber and any one resin selected from epoxy and polyester. The method of claim 5, The foam core material is a composite panel joining member comprising any one of urethane foam, polyethylene foam, polyvinyl chloride foam.

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