Ceramic curved composite target plate

Abstract

The application discloses a ceramic curved surface composite target plate, which comprises a metal back plate and at least two ceramic curved surface layers stacked in sequence from bottom to top, and each ceramic curved surface layer is composed of a plurality of ceramic arched curved surface units; the outer surface of the ceramic arched curved surface unit is composed of two top surfaces, two 1# side surfaces, two 2# side surfaces and two bottom surfaces; the ceramic arched curved surface units between the same layer and between the adjacent layers are staggered and overlapped, the adjacent 1# side surfaces and 2# side surfaces are tightly attached, the adjacent top surfaces and bottom surfaces are tightly attached, the upper surface of the metal back plate is tightly attached to the lowermost ceramic curved surface layer, and an arched force transmission structure is formed. The application has the characteristics of fully and uniformly conducting force and buffering, improves the impact resistance, is more excellent in impact resistance than a conventional composite plate, is lighter than a traditional metal protective plate, and is low in cost.

Description

Technical Field

[0001] This invention belongs to the field of protective armor, specifically relating to a ceramic curved composite target plate. Background Technology

[0002] Besides requiring high impact resistance, protective armor must also consider factors such as the quality and cost of protective materials during the design process. Therefore, current protective armor generally requires high strength, high hardness, high toughness, low cost, and low density. Brittle materials such as ceramics, due to their high strength and high hardness, possess superior performance compared to traditional metals and polymers, and are widely used in modern protective armor.

[0003] In the field of protective armor, ceramics are mainly brittle and have low tensile strength. Their failure characteristics are generally in the form of collapse, and the failure modes under quasi-static and high strain rate conditions are also significantly different. Therefore, how to improve the performance of ceramic materials in resisting failure caused by tensile stress and how to use them to design composite target plates with better mechanical properties are the current research focus.

[0004] Furthermore, existing protective structures are relatively simple in their impact-resistant components, and are prone to large-area damage due to uneven tensile loads. It is also difficult to improve impact resistance while controlling surface density. Summary of the Invention

[0005] The purpose of this invention is to provide a ceramic curved composite target plate, which has the characteristics of fully and uniformly transmitting force and buffering, improving impact resistance, having better impact resistance than conventional composite plates, and being lighter and less expensive than traditional metal protective plates.

[0006] The technical solution adopted in this invention is:

[0007] A ceramic curved surface composite target plate includes a metal backing plate stacked from bottom to top and at least two ceramic curved surface layers. Each ceramic curved surface layer is composed of several ceramic arched curved surface units. The outer surface of each ceramic arched curved surface unit consists of two top surfaces, two #1 side surfaces, two #2 side surfaces, and two bottom surfaces. The two top surfaces are symmetrical about the center from left to right, the two #1 side surfaces are symmetrical about the center from front to back, the two #2 side surfaces are symmetrical about the center from left to right, and the two bottom surfaces are symmetrical about the center from front to back. The top surfaces are convex smooth curved surfaces, the bottom surfaces are concave smooth curved surfaces, the #1 side surfaces are convex smooth curved surfaces, and the #2 side surfaces are concave smooth curved surfaces. The smooth curved surface has the top two sides of side #1 intersecting with the sides of two top surfaces, the middle two sides intersecting with the sides of two side #2, and the bottom edge intersecting with the bottom edge of a bottom surface. The top edge of side #2 intersecting with the bottom edge of a top surface, the middle two sides intersecting with the sides of two side #1, and the bottom two sides intersecting with the sides of two bottom surfaces. The ceramic arched curved surface units between the same layer and between adjacent layers are staggered and overlapped. The adjacent side #1 and side #2 are tightly fitted, the adjacent top and bottom surfaces are tightly fitted, and the upper surface of the metal back plate is tightly fitted with the bottom ceramic curved surface layer, forming an arched force transmission structure.

[0008] Preferably, the ceramic material used for the ceramic arched curved surface unit is boron carbide ceramic.

[0009] Preferably, the ceramic material used for the ceramic arched curved surface unit is alumina ceramic.

[0010] Preferably, the ceramic material used for the ceramic arched curved surface unit is silicon carbide ceramic.

[0011] Preferably, the metal backing plate is made of alloy steel.

[0012] Preferably, the metal material used for the metal back plate is iron.

[0013] Preferably, the metal backing plate is made of aluminum.

[0014] Preferably, the metal backing plate is made of copper.

[0015] Preferably, the metal backing plate is made of titanium.

[0016] Preferably, the lower surface of the metal back plate is flat.

[0017] The beneficial effects of this invention are:

[0018] This target plate fully utilizes the characteristic of the interlocking ceramic arched curved surface units primarily bearing compressive loads. On one hand, it leverages the high compressive performance of ceramic, a brittle material, improving upon the problem of traditional ceramic plates easily failing due to tensile stress. On the other hand, the arched contact surface deflects the impact projectile. Simultaneously, the metal base plate provides buffering and absorbs energy for the ceramic curved surface layer, exhibiting the characteristics of sufficient and uniform force transmission and buffering, thus enhancing impact resistance. Under conditions of low areal density, the ceramic curved surface layer, through the design of the outer surface of the ceramic arched curved surface units and the interlocking design, forms an arched force transmission structure, enhancing the overall ballistic performance. It has superior impact resistance compared to conventional composite plates and is lighter than traditional metal protective plates. The ceramic curved surface layer is composed of ceramic arched curved surface units, which are simple to process and manufacture, can be mass-produced, and are low in cost. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the cut-off blocks when the ceramic curved surface composite target plate in this embodiment of the invention uses two layers of ceramic curved surface.

[0020] Figure 2 This is a three-dimensional schematic diagram of two ceramic curved surface layers in an embodiment of the present invention.

[0021] Figure 3 This is a side view of the two ceramic curved surface layers in an embodiment of the present invention.

[0022] Figure 4 This is a three-dimensional schematic diagram of the ceramic arched curved surface unit in an embodiment of the present invention.

[0023] Figure 5 This is a front view of the ceramic arched curved surface unit in an embodiment of the present invention.

[0024] Figure 6 This is a side view of the ceramic arched curved surface unit in an embodiment of the present invention.

[0025] Figure 7 This is a top view of the ceramic arched curved surface unit in an embodiment of the present invention.

[0026] In the diagram: 10-Metal backplate; 20-Ceramic curved surface layer; 30-Ceramic arched curved surface unit; 31-Top surface; 32-1# side surface; 33-2# side surface; 34-Bottom surface. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] This invention discloses a ceramic curved surface composite target plate, such as... Figures 1 to 3 As shown, it includes a metal back plate 10 stacked from bottom to top and at least two layers of ceramic curved surface 20 (in this embodiment, two layers of ceramic curved surface 20 are used, but three, four, etc. can also be used, the specific number of layers is set according to actual needs), each layer of ceramic curved surface 20 is composed of several ceramic arched curved surface units 30; as Figures 4 to 7 As shown, the outer surface of the ceramic arched curved surface unit 30 consists of two top surfaces 31, two #1 side surfaces 32, two #2 side surfaces 33, and two bottom surfaces 34. The two top surfaces 31 are symmetrical about the center, the two #1 side surfaces 32 are symmetrical about the center front to back, the two #2 side surfaces 33 are symmetrical about the center, and the two bottom surfaces 34 are symmetrical about the center front to back. The top surfaces 31 are convex smooth curved surfaces, and the bottom surfaces 34 are concave smooth curved surfaces. The #1 side surfaces 32 are convex smooth curved surfaces, and the #2 side surfaces 33 are concave smooth curved surfaces. The top two sides of the #1 side surface 32 intersect with the sides of the two top surfaces 31, the middle two sides intersect with the sides of the two #2 side surfaces 33, and the bottom edge intersects with the bottom edge of one bottom surface 34. The top edge of the #2 side surface 33 intersects with the bottom edge of one top surface 31, the middle two sides intersect with the sides of the two #1 side surfaces 32, and the bottom two sides intersect with the sides of the two bottom surfaces 34. Figures 1 to 3As shown, the ceramic arched curved surface units 30 of the same layer and adjacent layers are staggered and overlapped. The adjacent side 1# 32 and side 2# 33 are tightly attached, the adjacent top surface 31 and bottom surface 34 are tightly attached, and the upper surface of the metal back plate 10 is tightly attached to the bottom ceramic curved surface layer 20, forming an arched force transmission structure.

[0032] In the above scheme: the target plate fully utilizes the characteristic of the interlocking ceramic arched curved surface units 30 mainly bearing compressive load. On the one hand, it leverages the high compressive performance of ceramic, a brittle material, improving the problem of traditional ceramic plates being prone to failure due to tensile stress. On the other hand, the arched contact surface causes the impact projectile to deflect. At the same time, the metal base plate 10 provides buffering and absorbs energy for the ceramic curved surface layer 20, with the characteristics of fully and uniformly transmitting force and buffering, thus improving impact resistance. Under the condition of low surface density, the ceramic curved surface layer 20 forms an arched force transmission structure through the design of the outer surface of the ceramic arched curved surface units 30 and the interlocking design, enhancing the overall ballistic performance. It has better impact resistance than conventional composite plates and is lighter than traditional metal protective plates. The ceramic curved surface layer 20 is composed of ceramic arched curved surface units 30, which is simple to process and manufacture, can be mass-produced, and has low cost.

[0033] For ease of installation, the lower surface of the metal backplate 10 is flat.

[0034] Regarding the ceramic materials used in the ceramic arched curved surface unit 30: boron carbide ceramics, alumina ceramics, silicon carbide ceramics, etc. can be selected.

[0035] Regarding the metal materials used for the metal backplate 10: alloy steel, iron, aluminum, copper, titanium, etc. can be selected.

[0036] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A ceramic curved surface composite target plate, characterized in that: It includes a metal backplate stacked from bottom to top and at least two layers of ceramic curved surfaces. Each ceramic curved surface layer is composed of several ceramic arched curved surface units. The outer surface of each ceramic arched curved surface unit consists of two top surfaces, two #1 side surfaces, two #2 side surfaces, and two bottom surfaces. The two top surfaces are symmetrical about the center horizontally, the two #1 side surfaces are symmetrical about the center front-backward, the two #2 side surfaces are symmetrical about the center horizontally, and the two bottom surfaces are symmetrical about the center front-backward. The top surfaces are convex smooth curved surfaces, the bottom surfaces are concave smooth curved surfaces, the #1 side surfaces are convex smooth curved surfaces, and the #2 side surfaces are concave smooth curved surfaces. The top two sides of the # side intersect with the sides of the two top surfaces respectively, the two sides of the middle part intersect with the sides of the two #2 sides respectively, and the bottom edge intersects with the bottom edge of a bottom surface. The top edge of the #2 side intersects with the bottom edge of a top surface, the two sides of the middle part intersect with the sides of the two #1 sides respectively, and the two sides of the bottom part intersect with the sides of the two bottom surfaces respectively. The ceramic arched curved surface units between the same layer and between adjacent layers are staggered and overlapped. The adjacent #1 and #2 sides are tightly fitted, the adjacent top and bottom surfaces are tightly fitted, and the upper surface of the metal back plate is tightly fitted with the bottom ceramic curved surface layer, forming an arched force transmission structure.

2. The ceramic curved composite target plate as described in claim 1, characterized in that: The ceramic material used in the ceramic arched curved surface unit is boron carbide ceramic.

3. The ceramic curved composite target plate as described in claim 1, characterized in that: The ceramic material used in the ceramic arched curved surface unit is alumina ceramic.

4. The ceramic curved composite target plate as described in claim 1, characterized in that: The ceramic material used in the ceramic arch curved surface unit is silicon carbide ceramic.

5. The ceramic curved composite target plate as described in claim 1, characterized in that: The metal backplate is made of alloy steel.

6. The ceramic curved surface composite target plate as described in claim 1, characterized in that: The metal backplate is made of iron.

7. The ceramic curved surface composite target plate as described in claim 1, characterized in that: The metal backplate is made of aluminum.

8. The ceramic curved surface composite target plate as described in claim 1, characterized in that: The metal backplate is made of copper.

9. The ceramic curved surface composite target plate as described in claim 1, characterized in that: The metal backplate is made of titanium.

10. The ceramic curved composite target plate as described in claim 1, characterized in that: The lower surface of the metal backplate is flat.

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