Waveform staggered high-shear quick assembly structure and method of composite panel for explosion resistance

Abstract

The present application relates to panel assembly structure technical field, especially to the corrugated staggered high shear-resistant quick assembly structure and method of composite panel for blast resistance, comprising two adjacent assembled first composite sandwich panel units and second composite sandwich panel units, the joint between the two adjacent first composite sandwich panel units and second composite sandwich panel units is complementary wave shape, the joint is provided along the first direction, the corrugated staggered shear connector is provided in the joint, the corrugated staggered shear connector is respectively fixedly connected with the first composite sandwich panel unit and the second composite sandwich panel unit and disperses joint load, the corrugated staggered high shear-resistant quick assembly structure and method of composite panel for blast resistance improve the in-plane shear capacity, opening resistance and impact damage tolerance of the joint area when in use, and do not need large-area welding and complex field tooling, and can realize the quick positioning, quick locking, quick disassembly and local replacement of standard panel units.

Description

Technical Field

[0001] This invention relates to the field of panel assembly structure technology, and in particular to a waveform-interlaced high shear-resistant rapid assembly structure and method for explosion-proof composite panels. Background Technology

[0002] Composite sandwich protective panels typically consist of a first panel, a first adhesive layer, a composite laminate core, a second adhesive layer, and a second panel. The outer panel withstands the blast impact pressure and overall bending load, the composite laminate core transmits transverse shear, inhibits crack propagation, and absorbs some impact energy, and the face-core adhesive layer ensures coordinated deformation of each layer. This type of structure features low areal density, high specific strength, impact resistance, and strong structural design flexibility. Therefore, it is used in large protective doors, prefabricated explosion-proof walls, and modular protective systems. Due to limitations in manufacturing size, transportation dimensions, on-site installation space, and local maintenance and replacement requirements, large-sized protective components usually need to be divided into multiple standardized sandwich panel units, which are then connected by seams to form a continuous protective surface. The seam area needs to simultaneously transmit in-plane shear, normal pull-out, local bending moment, and vibration loads caused by the blast impact, making it a weak point in modular protective systems prone to relative slippage, hole edge damage, and interface delamination.

[0003] Existing technologies typically overcome the problems in the seam area using the following methods, as detailed below: 1. Using straight seams results in a shorter effective force transmission path. The in-plane shear load generated by the explosion impact is easily concentrated and transmitted along the seam, causing relative slippage between adjacent panels. 2. Using ordinary tongue and groove joints, ordinary cross-joint pressure plates mainly rely on a small number of bolts for shearing, and the load is concentrated on the edge of the hole, which can easily cause extrusion, splitting, delamination of composite material at the hole edge, as well as shearing or pull-out of fasteners. 3. Using a single adhesive bond, the single adhesive bond joint is prone to change from shear load to peel load under the action of local bending of the panel and opening of the joint. After the adhesive layer is damaged, there is no reliable backup force transmission path. 4. Using multiple connecting holes, which are arranged along the same straight line, will form a continuously weakened section, causing cracks to propagate along the hole row under impact loads and reducing the residual load-bearing capacity of the joint area. 5. Using ordinary rectangular or polygonal shapes results in sharp corners and sudden changes in local stiffness at the splicing edges, making the edges of composite materials prone to stress concentration and processing damage. The aforementioned connection methods suffer from problems such as short force transmission paths, concentrated loads on fastening holes, sensitivity to adhesive peeling, weakened cross-sections due to straight-line connection holes, and low on-site assembly efficiency. Therefore, a high-shear-resistance assembly structure is needed that can be quickly positioned and locked, and achieves multi-path coordinated force transmission through waveform interfaces, staggered connectors, and through-fasteners. Summary of the Invention

[0004] The technical problem to be solved by this invention is: in order to solve the problems of short force transmission path, concentrated load of fastening hole, sensitivity to adhesive peeling, and weakened cross section along the straight line of the connecting hole in the joint area, which lead to low in-plane shear resistance, low tensile strength and poor impact damage tolerance in the joint area, the present invention provides a waveform staggered high shear rapid assembly structure and method for explosion-proof composite panels.

[0005] The technical solution adopted by this invention to solve its technical problem is: a wave-shaped staggered high shear-resistant rapid assembly structure for explosion-proof composite panels, including two adjacent first composite sandwich panel units and second composite sandwich panel units. The joint between two adjacent first composite sandwich panel units and second composite sandwich panel units is a complementary wave shape. The joint is set along a first direction. A wave-shaped staggered shear-resistant connector is provided in the joint. The wave-shaped staggered shear-resistant connector is fixedly connected to the first composite sandwich panel unit and the second composite sandwich panel unit respectively and disperses the joint load, so that the first composite sandwich panel unit, the wave-shaped staggered shear-resistant connector and the second composite sandwich panel unit form a multi-path force transmission structure that combines shear resistance, pressure resistance and anti-detachment. Compared to existing technologies, this solution sets the seam between the first and second composite sandwich panel units into a complementary wavy shape. The wavy seam and the corrugated shear connector work together to achieve in-plane self-positioning and geometric limiting, transforming the traditional straight seam into a continuous curved geometric shear interface. In conjunction with the corrugated shear connector, a multi-path force transmission structure is formed between the first and second composite sandwich panel units, combining cross-seam mechanical shear, pressure bearing, and anti-detachment. This improves the in-plane shear resistance, tensile strength, and impact damage tolerance of the seam area. Furthermore, it eliminates the need for large-area welding and complex on-site tooling, enabling rapid positioning, fast locking, rapid disassembly, and partial replacement of standard panel units, thus improving installation and maintenance efficiency.

[0006] To achieve a corrugated staggered shear-resistant connector, in some preferred embodiments, the corrugated staggered shear-resistant connector includes an integrally formed connecting base plate and multiple shear-resistant connecting lugs. The connecting base plate is disposed between the seams and is configured in a matching corrugated shape. The multiple shear-resistant connecting lugs are disposed on one side of the first composite sandwich panel unit and the second composite sandwich panel unit along a first direction of the seam. One end of each shear-resistant connecting lug is fixedly connected to the first composite sandwich panel unit, and the other end is fixedly connected to the second composite sandwich panel unit. Adjacent shear-resistant connecting lugs are staggered. The corrugated connecting base plate and the shear-resistant connecting lugs cooperate to form a geometric shear-bearing and cross-seam mechanical shear-bearing structure. The staggered shear-resistant connecting lugs prevent the formation of a continuous straight weakening section at the fastening position, thus maintaining the relative position of the shear-resistant connecting lugs, assisting in rapid positioning, and dispersing local shear loads.

[0007] To improve the local shear load and bearing capacity of the corrugated interlaced shear connector, in some preferred embodiments, the corrugated interlaced shear connector further includes a shear connection assembly. The shear connection assembly includes a first shear connection post and a second shear connection post. The first shear connection post is disposed on the side of the connecting substrate near the first composite sandwich panel unit and embedded in the first composite sandwich panel unit. The second shear connection post is disposed on the side of the connecting substrate near the second composite sandwich panel unit and embedded in the second composite sandwich panel unit. The first and second shear connection posts are arranged along a second direction, and the reference planes of the first and second directions intersect each other. By providing the first shear connection post embedded in the first composite sandwich panel unit and the second shear connection post embedded in the second composite sandwich panel unit along the second direction, the local shear load and bearing capacity are significantly improved.

[0008] In order to fix the shear-resistant connecting ear plate to the first composite sandwich panel unit and the second composite sandwich panel unit, in some preferred embodiments, both ends of the shear-resistant connecting ear plate are fixedly connected to their corresponding first composite sandwich panel unit and second composite sandwich panel unit by bolts.

[0009] To achieve a secure, anti-detachment structure between the first and second composite sandwich panel units, in some preferred embodiments, both the first and second composite sandwich panel units have a through first mounting hole, and the shear-resistant connecting ear plate has two second mounting holes, corresponding to the first and second mounting holes. The bolt passes through the corresponding first and second mounting holes sequentially and is threadedly connected to the nut. By passing the bolt through the first and second mounting holes and threading it to the nut, the shear-resistant connecting ear plate is securely connected to both the first and second composite sandwich panel units.

[0010] To improve the load-bearing capacity of the first and second composite sandwich panel units, in some preferred embodiments, a pre-embedded pressure-bearing column is provided in the first mounting hole. The pre-embedded pressure-bearing column is a hollow sleeve structure, and the bolt passes through the pre-embedded pressure-bearing column. By pre-embedding the pressure-bearing column in the first mounting hole, the load-bearing capacity of the first and second composite sandwich panel units is improved when locked, limiting the opening of the joint, bolt pull-out, and connector warping, and preventing local crushing of the panel units.

[0011] To improve the shear resistance of the panel units, in some preferred embodiments, both the first and second composite sandwich panel units are provided with core adhesive fasteners located away from the seams and at the corners. These core adhesive fasteners enhance the shear resistance of the core. The core adhesive fasteners within a single panel unit, together with their corresponding panel units, suppress relative slippage and interface peeling of the core, thereby improving the shear resistance and overall synergy of the sandwich structure.

[0012] In order to realize the first composite sandwich panel unit and the second composite sandwich panel unit, in some preferred embodiments, the first composite sandwich panel unit and the second composite sandwich panel unit each include a first panel, a composite laminate core board and a second panel stacked in sequence, the first panel and the composite laminate core board are bonded together by a first adhesive layer, and the composite laminate core board and the second panel are bonded together by a second adhesive layer.

[0013] In order to achieve lightweight and impact-resistant composite laminate core boards, some preferred embodiments are that the composite laminate core board adopts one of aramid, carbon fiber, glass fiber, ultra-high molecular weight polyethylene fiber or hybrid fiber laminate.

[0014] A method for assembling a high-shear-resistance rapid assembly structure using a corrugated staggered composite panel as described above, with the following specific steps: S1. Joint surface treatment: Clean the bonding area between complementary wavy joints and corrugated shear connectors; S2. Quick docking, positioning, and locking: Place the corrugated interlaced shear connector at the seam between the first composite sandwich panel unit and the second composite sandwich panel unit. Align and fit the first composite sandwich panel unit, the corrugated interlaced shear connector, and the second composite sandwich panel unit together. Use the corrugated contour to achieve in-plane self-positioning. At the same time, adjust the outer surfaces of the two side panels of the first and second composite sandwich panel units to be flush. Fix the corrugated interlaced shear connector to the corresponding first and second composite sandwich panel units respectively. S3. Assembly quality inspection: Check the fit of the complementary wavy assembly edges, the misalignment of the two panels, the tightening of the through bolts, the bearing condition of the metal embedded pressure column, and the continuity of the joint seal. The core glue bolt connector has been completed in the panel unit prefabrication stage and does not participate in the rapid on-site assembly of adjacent panels. S4. Quick disassembly and replacement: During maintenance, the through bolts can be removed and the corrugated shear connectors can be removed to replace the damaged panel unit individually without removing the entire protective component.

[0015] The beneficial effects of this invention are as follows: In use, the wave-shaped interlaced high-shear-resistance rapid assembly structure and method for explosion-proof composite panels of this invention sets the joint between the first and second composite sandwich panel units into a complementary wave shape. The wave-shaped joint and the wave-shaped interlaced shear-resistance connector cooperate to perform in-plane self-positioning and geometric limiting, transforming the traditional straight joint into a continuous curved geometric shear-bearing interface. Furthermore, the wave-shaped interlaced shear-resistance connector, together with the first and second composite sandwich panel units, forms a cross-joint mechanical shear-bearing structure. The multi-path force transmission structure, which combines pressure bearing and anti-detachment, improves the in-plane shear resistance, tensile strength, and impact damage tolerance of the joint area. It eliminates the need for large-area welding and complex on-site tooling, enabling rapid positioning, fastening, disassembly, and partial replacement of standard panel units. This improves installation and maintenance efficiency and avoids the problems of short force transmission paths, concentrated loads on fastening holes, sensitivity to adhesive peeling, and weakened cross-sections along straight lines of connecting holes in existing methods for overcoming joint areas. These problems result in low in-plane shear resistance, low tensile strength, and poor impact damage tolerance in the joint area. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is the front view of the present invention; Figure 3 This is the left view of the present invention; Figure 4 This is a top view of the present invention; Figure 5 yes Figure 2 Sectional view of AA; Figure 6 yes Figure 5 A magnified view of part B in the image; Figure 7 This is a schematic diagram of the structure of the first composite sandwich panel unit and the second composite sandwich panel unit in this invention; Figure 8 This is a three-dimensional structural schematic diagram of the waveform-interlaced shear connector in this invention.

[0018] In the diagram: 1. First composite sandwich panel unit; 2. Second composite sandwich panel unit; 3. Wave-shaped interlaced shear connector, 301. Connecting base plate, 302. Shear connecting ear plate, 3021. Second mounting hole, 303. Shear connecting assembly, 3031. First shear connecting column, 3032. Second shear connecting column, 304. Embedded bearing column; 4. First mounting hole; 5. Bolts; 6. Adhesive plug connectors for the face core; 7. First panel; 8. Composite laminate core board; 9. Second panel. Detailed Implementation

[0019] Example 1, as Figure 1-8 As shown, a wave-shaped, interlaced, high-shear-resistance, rapid-assembly structure for explosion-proof composite panels includes a first composite sandwich panel unit 1 and a second composite sandwich panel unit 2. Adjacent first composite sandwich panel units 1 and 2 are assembled together. The seam between adjacent first composite sandwich panel units 1 and 2 is a complementary wave shape. The complementary wave shape can be a sine wave, continuous arc, spline curve, non-uniform amplitude waveform, or a multi-tooth curve with rounded corners. This seam is set along a first direction, which is the X-axis direction. A wave-shaped, interlaced, shear-resistant connector 3 is provided within the seam. The corrugated shear connector 3 is used to fix and distribute the joint load to the first composite sandwich panel unit 1 and the second composite sandwich panel unit 2 respectively. The corrugated shear connector 3 can be made of metal plate, fiber reinforced composite material plate or metal-composite hybrid plate. The first composite sandwich panel unit 1, the corrugated shear connector 3 and the second composite sandwich panel unit 2 form a multi-path force transmission structure that combines shear bearing, pressure bearing and anti-detachment. The complementary corrugated joint directly inhibits the panel from sliding along the joint direction through continuous geometric limit and extends the actual joint path, so that the shear load is redistributed along the curved interface.

[0020] The corrugated interlaced shear connector 3 includes a connecting base plate 301 and multiple shear-resistant connecting lugs 302. The connecting base plate 301 is disposed between the seams and is configured in a corrugated shape to match the seams. The multiple shear-resistant connecting lugs 302 are spaced apart along the first direction of the seams. One end of each shear-resistant connecting lug 302 is fixedly connected to the first composite sandwich panel unit 1, and the other end of each shear-resistant connecting lug 302 is fixedly connected to the second composite sandwich panel unit 2. Adjacent shear-resistant connecting lugs 302 are staggered with each other. The shear-resistant connecting lugs 302 and the corrugated connecting base plate 301 are interlaced with each other. 1. It can be integrally formed and connected by welding, riveting, gluing or co-curing. The connection position is reliably pressure-bearing and the load is distributed. The staggered shear connection ear plate 302 makes the through fastening position staggered on both sides of the joint, avoiding the formation of a continuous straight weakening zone. In this embodiment, the complementary wave shape is a sine wave. One end of one staggered shear connection ear plate 302 is located at the crest of the sine wave, and the other end of the other staggered shear connection ear plate 302 is located at the trough of the sine wave, so that the two adjacent staggered shear connection ear plates 302 are staggered.

[0021] The wave-shaped interlaced shear connector 3 also includes a shear connection component 303. The shear connection component 303 includes a first shear connection post 3031 and a second shear connection post 3032. The first shear connection post 3031 is disposed on the side of the connecting substrate 301 near the first composite sandwich panel unit 1 and embedded in the first composite sandwich panel unit 1. The second shear connection post 3032 is disposed on the side of the connecting substrate 301 near the second composite sandwich panel unit 2 and embedded in the second composite sandwich panel unit 2. The first shear connection post 3031 and the second shear connection post 3032 are arranged along a second direction. The reference plane of the first direction and the reference plane of the second direction intersect each other and are arranged perpendicularly. The second direction is the Y-axis direction.

[0022] Both ends of the shear-resistant connecting ear plate 302 are fixedly connected to their corresponding first composite sandwich panel unit 1 and second composite sandwich panel unit 2 by bolts 5 respectively.

[0023] Both the first composite sandwich panel unit 1 and the second composite sandwich panel unit 2 have through first mounting holes 4. The shear connecting ear plate 302 has two second mounting holes 3021. The first mounting holes 4 and the second mounting holes 3021 correspond to each other. The first mounting holes 4 are equipped with embedded pressure columns 304. The embedded pressure columns 304 are hollow sleeve structures. The bolts 5 pass through the corresponding embedded pressure columns 304 and second mounting holes 3021 in the first mounting holes 4 and are threaded to the nuts. The metal embedded pressure columns 304 directly transmit the preload of the through bolts 5 between the two side panels, avoiding local crushing of the core material, delamination of the hole edges and panel depression. The bolts 5 are stably clamped to the full thickness of the sandwich panel through the metal embedded pressure columns 304, which can simultaneously bear in-plane shear, normal pull-out and joint opening loads, thus improving the resistance to opening and pull-out.

[0024] Both the first composite sandwich panel unit 1 and the second composite sandwich panel unit 2 are provided with core adhesive bolt connectors 6 located away from the seam and at the corners. The core adhesive bolt connectors 6 are used to enhance the shear resistance of the core. The core adhesive bolt connectors 6 can be made of structural adhesive in conjunction with through bolts, rivets, pins or local metal embedded parts, and are set at the corners, edges or high shear areas of the sandwich panel to improve the shear resistance of the core and the overall coordination.

[0025] The first composite sandwich panel unit 1 and the second composite sandwich panel unit 2 each include a first panel 7, a composite material laminate core board 8, and a second panel 9 stacked sequentially. The first panel 7 and the composite material laminate core board 8 are bonded together by a first adhesive layer, and the composite material laminate core board 8 and the second panel 9 are bonded together by a second adhesive layer. The composite material laminate core board 8 is made of one of aramid, carbon fiber, glass fiber, ultra-high molecular weight polyethylene fiber, or a hybrid fiber laminate. The first panel 7 and the second panel 9 can be made of one of steel plate, aluminum alloy plate, fiber-reinforced composite material plate, or a hybrid panel. The first panel 7 corresponds to the first layer of each layer in the first composite sandwich panel unit 1 and the second composite sandwich panel unit 2. Each of the first panel 7, the composite laminate core board 8, and the second panel 9 is provided with a corresponding shear connection component 303. The first composite sandwich panel unit 1 and the second composite sandwich panel unit 2 are designed to balance lightweight composite materials and impact resistance. That is, the first shear connection column 3031 and the second shear connection column 3032 are respectively embedded in the corresponding layers of the first composite sandwich panel unit 1 and the second composite sandwich panel unit 2. The composite laminate core board 8 and the two side panels form a lightweight sandwich load-bearing structure, which maintains bending load-bearing capacity, core layer shear transmission and impact energy dissipation capacity while reducing surface density. This embodiment can be used for protective door panels, explosion-proof wall panels, protective airtight partitions, equipment enclosure panels, mobile explosion-proof barriers and modular safety cabins and other protective components.

[0026] The explosive impact pressure is mainly borne by the first panel 7 on the blast-facing side, transmitted through the first adhesive layer to the composite laminate core board 8, and then through the second adhesive layer to the second panel 9. The composite laminate core board 8 absorbs part of the energy through fiber bearing, matrix cracking, interlaminar friction, and damage propagation. The face-core adhesive bolt connectors 6 inside a single panel unit, together with the two adhesive layers, inhibit relative slippage and interface peeling of the face-core, improving the shear resistance and overall synergy of the sandwich structure. The in-plane shear at the joint is preferentially transmitted through lateral contact of the complementary wavy splicing edges, and then diffuses to both sides of the joint through multiple staggered shear-resistant connecting lugs 302. The bolts 5 transmit preload through the pre-embedded bearing columns 304, limiting the opening of the joint, bolt 5 pull-out, and connector warping, and preventing local crushing of the core material. This forms a multi-path bearing system of wavy interface geometric shear, staggered lugs across the joint shear, pre-embedded bearing columns 304 for stable pressure transmission, and through bolts 5 for clamping and preventing loosening.

[0027] When damage occurs in a localized corrugated contact area, a single fastening point, or a localized adhesive layer, other corrugated contact areas, shear-resistant connecting lugs 302, and through fastening points can still continue to transmit loads, forming a redundant, highly shear-resistant load-bearing system. This mechanism reduces the risk of sudden joint failure under explosive impact and improves the overall integrity, damage tolerance, and residual load-bearing capacity of the assembled protective panel.

[0028] Example 2 is an application of Example 1, specifically: a method for a high shear-resistant rapid assembly structure using a waveform-interlaced high-shear-resistance composite panel as described above. The specific operation steps are as follows: S1. Joint surface treatment: Clean the mating area between the complementary wavy joint and the corrugated shear connector 3; S2. Quick docking and positioning: Place the corrugated interlaced shear connector 3 at the seam between the first composite sandwich panel unit 1 and the second composite sandwich panel unit 2, align and fit the first composite sandwich panel unit 1, the corrugated interlaced shear connector 3 and the second composite sandwich panel unit 2 together, and use the corrugated contour to complete in-plane self-positioning. At the same time, adjust the outer surfaces of the two side panels of the first composite sandwich panel unit 1 and the second composite sandwich panel unit 2 to be flush. S3. Locking: The corrugated shear connector 3 is fixedly connected to the corresponding first composite sandwich panel unit 1 and second composite sandwich panel unit 2 respectively. S4. Assembly quality inspection: Check the fit at the joints, the misalignment of the two panels, and the locking condition. S5. Quick disassembly and replacement: During maintenance, remove the wave-shaped interlaced anti-shear connector 3 to replace the locally damaged panel unit individually.

[0029] Step S1 includes: S1.1, Composite panel prefabrication and unit reinforcement: The first panel 7, the first adhesive layer, the composite core board 8, the second adhesive layer and the second panel 9 are stacked, glued and pressure cured in sequence; metal pre-embedded pressure columns 304 are pre-embedded at the corresponding positions of the through fastening components, and the core adhesive bolt connectors 6 are installed at the set positions to form a standardized composite sandwich panel unit. The core adhesive bolt connectors 6 are completed in the factory prefabrication stage and are only used to enhance the shear resistance of the core and the overall coordination. S1.2, Prefabrication of Edges and Connection Positions: Complementary wavy assembly edges are processed on the corresponding edges of adjacent panel units, and the central through holes of the metal embedded bearing columns 304 are processed or calibrated according to the arrangement requirements of the staggered shear connection ear plates 302. The cutting edges of difficult-to-process composite materials such as aramid laminates are cleaned and sealed with resin. S1.3, Joint surface treatment: Clean the complementary wavy assembly edges and the contact area of ​​the corrugated shear connector 3; when enhanced sealing or continuous force transmission is required, apply a thin layer of tough structural adhesive, adhesive film or elastic sealing layer to the surface of the assembly edges.

[0030] Step S2 includes: S2.1 Quick docking and positioning: Align and fit the complementary wavy assembly edges of the two panel units directly, use the waveform contour to complete in-plane self-positioning, and adjust the outer surfaces of the two panels to be flush. S2.2 Quick positioning of connectors: Place the corrugated interlaced shear connector 3 along the joint, so that the corrugated connecting base band corresponds to the joint outline, and make the mounting holes of each shear connecting ear plate 302 coaxial with the central through hole of the metal embedded bearing column 304; S2.3, Through-type graded locking: The through bolts 5 are passed through the central through holes of the shear-resistant connecting ear plate 302 and the metal embedded bearing column 304 in sequence, and tightened in stages from the middle of the joint to both ends and left and right alternately, so that the shear-resistant connecting ear plate 302 is evenly attached and forms a stable pre-tightening force. The metal embedded bearing column 304 bears the axial pre-tightening pressure to prevent the core material from being crushed. When quick-release pins or quarter-turn locking parts are used, the on-site assembly time can be further shortened.

[0031] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A wave-shaped, interlaced, high-shear-resistance, rapid-assembly structure for explosion-proof composite panels, characterized in that: The assembly includes two adjacent first composite sandwich panel units (1) and second composite sandwich panel units (2). The seam between the two adjacent first composite sandwich panel units (1) and second composite sandwich panel units (2) is a complementary wave shape. The seam is set along a first direction. A wave-shaped interlaced shear connector (3) is provided in the seam. The wave-shaped interlaced shear connector (3) is fixedly connected to the first composite sandwich panel unit (1) and the second composite sandwich panel unit (2) respectively and disperses the seam load, so that a multi-path force transmission structure combining shear bearing, pressure bearing and anti-detachment is formed between the first composite sandwich panel unit (1), the wave-shaped interlaced shear connector (3) and the second composite sandwich panel unit (2). The wave-shaped interlaced shear connector (3) includes an integrally formed connecting base plate (301) and multiple shear connecting ear plates (302). The connecting base plate (301) is disposed between the seams and is configured in a matching wave shape. The multiple shear connecting ear plates (302) are disposed along the first direction of the seams on one side of the first composite sandwich panel unit (1) and the second composite sandwich panel unit (2). One end of the shear connecting ear plate (302) is fixedly connected to the first composite sandwich panel unit (1), and the other end of the shear connecting ear plate (302) is fixedly connected to the second composite sandwich panel unit (2). The adjacent shear connecting ear plates (302) are interlaced with each other.

2. The waveform-interlaced high shear-resistant rapid assembly structure of the explosion-proof composite panel according to claim 1, characterized in that: The waveform interlaced shear connector (3) further includes a shear connection assembly (303), which includes a first shear connection post (3031) and a second shear connection post (3032). The first shear connection post (3031) is disposed on the side of the connecting substrate (301) near the first composite sandwich panel unit (1) and embedded in the first composite sandwich panel unit (1). The second shear connection post (3032) is disposed on the side of the connecting substrate (301) near the second composite sandwich panel unit (2) and embedded in the second composite sandwich panel unit (2). The first shear connection post (3031) and the second shear connection post (3032) are disposed along a second direction, and the reference planes of the first direction and the second direction are intersected.

3. The waveform-interlaced high shear-resistant rapid assembly structure of the explosion-proof composite panel according to claim 1 or 2, characterized in that: Both ends of the shear-resistant connecting ear plate (302) are fixedly connected to their corresponding first composite sandwich panel unit (1) and second composite sandwich panel unit (2) by bolts (5).

4. The waveform-interlaced high shear-resistant rapid assembly structure of the explosion-proof composite panel according to claim 3, characterized in that: The first composite sandwich panel unit (1) and the second composite sandwich panel unit (2) are provided with a through first mounting hole (4). The shear connection ear plate (302) is provided with two second mounting holes (3021). The first mounting hole (4) corresponds to the second mounting hole (3021). The bolt (5) passes through the corresponding first mounting hole (4) and second mounting hole (3021) in sequence and is threadedly connected to the nut.

5. The waveform-interlaced high shear-resistant rapid assembly structure of the explosion-proof composite panel according to claim 4, characterized in that: An embedded pressure-bearing column (304) is provided in the first mounting hole (4). The embedded pressure-bearing column (304) is a hollow sleeve structure, and the bolt (5) passes through the embedded pressure-bearing column (304).

6. The waveform-interlaced high shear-resistant rapid assembly structure of the explosion-proof composite panel according to claim 1, characterized in that: Both the first composite sandwich panel unit (1) and the second composite sandwich panel unit (2) are provided with a core adhesive plug connector (6) located away from the seam and at the corner. The core adhesive plug connector (6) is used to enhance the shear resistance of the core.

7. The wave-shaped interlaced high shear-resistant rapid assembly structure of the explosion-proof composite panel according to claim 1, characterized in that: The first composite sandwich panel unit (1) and the second composite sandwich panel unit (2) each include a first panel (7), a composite laminate core board (8) and a second panel (9) stacked in sequence. The first panel (7) and the composite laminate core board (8) are bonded together by a first adhesive layer, and the composite laminate core board (8) and the second panel (9) are bonded together by a second adhesive layer.

8. The wave-shaped interlaced high shear-resistant rapid assembly structure of the explosion-proof composite panel according to claim 7, characterized in that: The composite laminate core board (8) is made of one of the following: aramid, carbon fiber, glass fiber, ultra-high molecular weight polyethylene fiber, or mixed fiber laminate.

9. A method for assembling a high-shear-resistance rapid-assembly structure using a waveform-interlaced high-shear-resistance composite panel as described in any one of claims 1-8, characterized in that, The specific operating steps are as follows: S1. Joint surface treatment: Clean the bonding area between the complementary wavy joint and the corrugated shear connector (3); S2. Quick docking, positioning and locking: Place the corrugated shear connector (3) at the seam between the first composite sandwich panel unit (1) and the second composite sandwich panel unit (2), align and fit the first composite sandwich panel unit (1), the corrugated shear connector (3) and the second composite sandwich panel unit (2) together, use the corrugated contour to complete in-plane self-positioning, at the same time, adjust the outer surfaces of the two side panels of the first composite sandwich panel unit (1) and the second composite sandwich panel unit (2) to be flush, and fix the corrugated shear connector (3) to the corresponding first composite sandwich panel unit (1) and the second composite sandwich panel unit (2) respectively. S3. Assembly quality inspection: Check the fit at the joints, the misalignment of the two panels, and the locking condition. S4. Quick disassembly and replacement: During maintenance, remove the wave-shaped interlaced anti-shear connector (3) to replace the partially damaged panel unit individually.

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