CN116518780A - Functional gradient armor structure for resisting armor piercing bullet with diameter of 14.5mm - Google Patents
Functional gradient armor structure for resisting armor piercing bullet with diameter of 14.5mm Download PDFInfo
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- CN116518780A CN116518780A CN202310515246.1A CN202310515246A CN116518780A CN 116518780 A CN116518780 A CN 116518780A CN 202310515246 A CN202310515246 A CN 202310515246A CN 116518780 A CN116518780 A CN 116518780A
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- armor
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- composite material
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- 239000000919 ceramic Substances 0.000 claims abstract description 78
- 239000002131 composite material Substances 0.000 claims abstract description 56
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000000853 adhesive Substances 0.000 claims abstract description 9
- 230000001070 adhesive effect Effects 0.000 claims abstract description 9
- 239000005022 packaging material Substances 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 239000004831 Hot glue Substances 0.000 claims description 6
- 239000007767 bonding agent Substances 0.000 claims description 5
- 238000009715 pressure infiltration Methods 0.000 claims description 5
- 229920000271 Kevlar® Polymers 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004761 kevlar Substances 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 229920006332 epoxy adhesive Polymers 0.000 claims 1
- 239000011152 fibreglass Substances 0.000 claims 1
- 238000005538 encapsulation Methods 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 69
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 239000000806 elastomer Substances 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H5/00—Armour; Armour plates
- F41H5/02—Plate construction
- F41H5/04—Plate construction composed of more than one layer
- F41H5/0414—Layered armour containing ceramic material
- F41H5/0428—Ceramic layers in combination with additional layers made of fibres, fabrics or plastics
- F41H5/0435—Ceramic layers in combination with additional layers made of fibres, fabrics or plastics the additional layers being only fibre- or fabric-reinforced layers
Abstract
The invention discloses a functional gradient armor structure for resisting a armor-piercing bullet with the diameter of 14.5mm, and relates to a functional gradient armor structure. The invention aims to solve the problems that the traditional ceramic/metal or ceramic/fiber composite material armor structure has large surface density and overlarge thickness, the elasticity resistance is difficult to further improve, and the like. The armor structure comprises a ceramic panel, gradient B 4 The C/Al composite material and the packaging material have the integral structure with the ceramic content of 100-50% gradient from the front panel to the back panel. The thickness of the ceramic panel in the armor structure is 14-18 mm; gradient B 4 C/Al is a multi-layer structure, and the overall thickness is 12-15 mm; the encapsulation material includes a crack stop layer, an adhesive, and a fibrous layer. The invention is used in the field of armor protection.
Description
Technical Field
The invention relates to a functional gradient armor structure for resisting a armor-piercing bullet with the diameter of 14.5 mm.
Background
With the development of technology, the power of anti-armor weapons is increasingly enhanced, and the requirements on armor protection layers are also increasingly higher. At present, aiming at the threat of medium and small caliber armor piercing projectile bodies, a ceramic composite armor structure is a mainstream protection structure form. Ceramic/metal and ceramic/fiber composites are commonly used ceramic composite armor structures. The ceramic/metal armor structure has larger surface density, which is not beneficial to the lightweight development of vehicles; the existence of the low-density fiber composite material in the ceramic/fiber composite material leads the structure to have larger thickness, and the fiber composite material is easy to age, thereby reducing the protective performance of the armor structure; therefore, there is a need to develop a new protective armor construction with excellent ballistic resistance and low areal density and thickness.
Disclosure of Invention
The invention aims to solve the problems of large surface density, large thickness and poor anti-multiple elasticity of the traditional ceramic composite armor structure. But provides a functional gradient armor structure resisting the armor piercing bullet of 14.5 mm.
A functionally graded armor structure for resisting armor piercing projectile of 14.5mm comprises a ceramic panel and a gradient B 4 The overall thickness of the C/Al composite material and the packaging material is 28-35 mm; the packaging material comprises a crack stop layer, an adhesive and a fiber layer; the first layer is a ceramic panel with the thickness of 14-18 mm; the second layer is gradient B 4 C/Al composite, the gradient B 4 The ceramic content in the C/Al composite material is 50-70%, and the thickness is 12-15 mm; the crack-stopping layers are arranged on the outer sides of the first layer, between the first layer and the second layer and on the outer sides of the second layer, and are bonded with the layers through bonding agents; the side surface of the functional gradient armor structure resisting the armor piercing bullet of 14.5mm is coated by a fiber layer.
The invention has the beneficial effects that:
the invention uses ceramic material and gradient B 4 The C/Al composite material is combined, the ceramic content of the whole structure in the penetration direction of the elastomer gradually transits from 100% to 50%, and the functionally gradient armor structure is formed. The existence of the gradient structural form ensures the mutual matching of stress waves of the integral structure, reduces the strength of reflection tensile waves caused by the impact of an elastomer, delays the ceramic failure of a panel and has the advantages of light weight and high strength 4 The C/Al composite material is used as a supporting plate of a pure ceramic panel, can effectively support the ceramic panel, and fully plays roles of crushing the ceramic panel and abrading an elastomer. The polygonal ceramic splice and the crack-stopping layer are arranged, so that the damage to the target plate is reduced, and the multiple elasticity resistance of the target plate is improved; the existence of the fiber coating layer on the side surface of the structure provides lateral constraint function for the whole structure, and the protection efficiency is further improved while the damage of the target plate is reduced.
Drawings
FIG. 1 is a schematic structural view of a functionally graded armor structure resistant to a 14.5mm armor-piercing projectile; wherein 1 represents a ceramic panel and 2 represents a gradient B 4 C/Al composite material, 3 represents a crack stopper;
FIG. 2 is a schematic cross-sectional view of a functionally graded armor structure resistant to a 14.5mm armor-piercing projectile; wherein 4 denotes a fiber layer and 5 denotes a polygonal ceramic unit.
Detailed Description
The first embodiment is as follows: the functional gradient armor structure for resisting the armor piercing bullet with the thickness of 14.5mm comprises a ceramic panel and a gradient B 4 The overall thickness of the C/Al composite material and the packaging material is 28-35 mm; the packaging material comprises a crack stop layer, an adhesive and a fiber layer; the first layer is a ceramic panel with the thickness of 14-18 mm; the second layer is gradient B 4 C/Al composite, the gradient B 4 The ceramic content in the C/Al composite material is 50-70%, and the thickness is 12-15 mm; the crack-stopping layers are arranged on the outer sides of the first layer, between the first layer and the second layer and on the outer sides of the second layer, and are bonded with the layers through bonding agents; the side surface of the functional gradient armor structure resisting the armor piercing bullet of 14.5mm is coated by a fiber layer.
In the embodiment, the functional gradient structure is designed as a radial structure of an armor material and is used for improving penetration resistance and multiple-elasticity resistance of the whole structure; by adjusting B 4 The content of C realizes the preparation of gradient materials, and the B4C/Al composite material has the advantages of low density, high specific strength and specific modulus, and can improve the protection efficiency of an armor structure and reduce the thickness of the structure when being applied to the armor structure.
Gradient B in the present embodiment 4 The specific preparation process of the C/Al composite material refers to ZL201710947667.6.
The second embodiment is as follows: the first difference between this embodiment and the specific embodiment is that: the ceramic content in the functionally graded armor structure of the armor-piercing bullet resistant to 14.5mm gradually transits from 100% to 50%. The other is the same as in the first embodiment.
And a third specific embodiment: this embodiment differs from the first or second embodiment in that: the ceramic panel is B 4 C ceramic, siC ceramic, al 2 O 3 Ceramic, modified B 4 C ceramic, modified SiC ceramic or modified Al 2 O 3 A ceramic; the gradient B 4 B in C/Al composite material 4 The particle diameter of the C particles is 5-120 mu m. The other is the same as the first or second embodiment.
The specific embodiment IV is as follows: this embodiment differs from one of the first to third embodiments in that: the ceramic panel is formed by splicing a whole ceramic or polygonal ceramic units, the polygonal ceramic units are square or hexagonal, and the opposite side of the polygonal ceramic units is 32-108 mm. The other is the same as in one of the first to third embodiments.
Fifth embodiment: this embodiment differs from one to four embodiments in that: said gradient B 4 The aluminum matrix in the C/Al composite is a 2xxx series aluminum alloy, a 5xxx series aluminum alloy, or a 7xxx series aluminum alloy. The others are the same as in one to one fourth embodiments.
Specific embodiment six: this embodiment differs from one of the first to fifth embodiments in that: the gradient B 4 The C/Al composite material is 1-5 layers,the ceramic content is reduced layer by layer, and the ceramic is formed by pressure infiltration integration preparation, and the gradient interface is metallurgical bonding. The others are the same as in one of the first to fifth embodiments.
Seventh embodiment: this embodiment differs from one of the first to sixth embodiments in that: the gradient B 4 The C/Al composite material is a monolithic composite material or a polygonal gradient B 4 C/Al composite material units are spliced to form the polygonal gradient B 4 The C/Al composite material unit is square or hexagonal in shape, and the polygon gradient B 4 The opposite side size of the C/Al composite material unit is 32-108 mm. The others are the same as in one of the first to sixth embodiments.
Eighth embodiment: this embodiment differs from one of the first to seventh embodiments in that: the crack-stopping layer is made of glass fiber cloth or Kevlar fiber cloth. The other is the same as in one of the first to seventh embodiments.
Detailed description nine: this embodiment differs from one to eight of the embodiments in that: the adhesive is hot melt adhesive or epoxy resin adhesive. The others are the same as in one to eight embodiments.
Detailed description ten: this embodiment differs from one of the embodiments one to nine in that: the fiber layer is used as a lateral constraint material, and is formed by winding a plurality of layers of fiber cloth, and the total thickness of the fiber layer is 1-5 mm. The others are the same as in one of the embodiments one to nine.
The effect of the invention was verified by the following tests:
embodiment one: a functionally graded armor structure for resisting armor piercing projectile of 14.5mm comprises a ceramic panel and a gradient B 4 C/Al composite and encapsulation material; the packaging material comprises a crack stop layer, an adhesive and a fiber layer; the first layer is a ceramic panel; the second layer is gradient B 4 C/Al composite material; the crack-stopping layers are arranged on the outer sides of the first layer, between the first layer and the second layer and on the outer sides of the second layer, and are bonded with the layers through bonding agents; the side surface of the functional gradient armor structure resisting the armor piercing bullet of 14.5mm is coated by a fiber layer;
the ceramic panel is made of SiC ceramic, the ceramic panel is formed by splicing a plurality of hexagonal ceramics with the diagonal angles of 96mm, and the thickness of the ceramics is 15mm; two layers of glass fiber cloth on the upper and lower layers of the spliced ceramic panel are respectively encapsulated by hot melt adhesive, and the ceramic panel with the size of 600mm multiplied by 500mm multiplied by 16mm is obtained by cutting through a cutting machine;
gradient B 4 The C/Al composite material is 70-55% of two-layer gradient composite material, the matrix material of the aluminum-based composite material is 7075Al, and the reinforcement is B 4 C particles with the particle size range of 5-120 mu m; the gradient material is prepared by integrating a pressure infiltration process, each layer has a thickness of 7mm, and the gradient material B is prepared by integrating a pressure infiltration process 4 The overall thickness of the C/7075Al is 14mm, and the composite material is subjected to T6 heat treatment; gradient B 4 C/7075Al is bonded with the 16mm thick ceramic panel obtained by cutting through a layer of hot melt adhesive film, and the whole structure forms a three-layer gradient structure form of 100-70-55%.
The side surface coating material of the integral structure is wrapped by a plurality of layers of Kevlar fiber cloth, the fiber cloth applies pretightening force, and the thickness of the fiber layer coating is 3mm.
The overall areal density of the functionally graded armor structure obtained in example one against a 14.5mm armor-piercing projectile was 86kg/m 2 Thickness 32mm. The anti-bullet test result shows that when the 14.5mm penetrating bullet is at the standard bullet speed of 988m/s, the penetration surface density of the penetrating bullet cannot be 86kg/m under the condition of incidence at the angle of 100m from 0 DEG 2 Is a composite material with an anti-elastic structure (the back plate is supported by a 6mm steel plate). Armor structures also have multiple ballistic resistance and an area of 600mm x 500mm can effectively protect 5 shots. Table 1 shows the results of the ballistic test of functionally graded armor structures obtained in example one.
Table 1 results of ballistic test on functionally graded armor structures obtained in example one
Embodiment two: a functionally gradient armor structure for resisting armor piercing bullet of 14.5mm comprises a ceramic panel, B 4 C/Al composite and encapsulation material; the packaging material comprises a crack stop layer, an adhesive and a fiber layer; the first layer is a ceramic panel; the second layer is homogeneous 55% B 4 C/An Al composite material; the crack-stopping layers are arranged on the outer sides of the first layer, between the first layer and the second layer and on the outer sides of the second layer, and are bonded with the layers through bonding agents; the side surface of the functional gradient armor structure resisting the armor piercing bullet of 14.5mm is coated by a fiber layer;
the ceramic panel material is B 4 C ceramic, wherein the ceramic panel is formed by splicing a plurality of hexagonal ceramics with the diagonal angles of 96mm, and the thickness of the ceramics is 15mm; two layers of glass fiber cloth on the upper and lower layers of the spliced ceramic panel are respectively encapsulated by hot melt adhesive, and the ceramic panel with the size of 600mm multiplied by 500mm multiplied by 16mm is obtained by cutting through a cutting machine;
B 4 the C/Al composite material is homogeneous 55% B 4 C/Al composite material, wherein the matrix material of the aluminum-based composite material is 7075Al, and the reinforcement is B 4 C particles with the particle size of 20 mu m; b (B) 4 The C/Al composite material is prepared by integrating a pressure infiltration process, the overall thickness is 15mm, and the composite material is subjected to T6 heat treatment and 55% B 4 C/Al is cut into hexagons with 96mm paired edges, and the hexagons are spliced to form B with 600mm multiplied by 500mm multiplied by 15mm 4 A C/Al composite layer; homogeneity B 4 C/7075Al is bonded with the 16mm thick ceramic panel obtained by cutting through a layer of hot melt adhesive film, and the whole structure forms a two-layer gradient structure form of 100-55%.
The side surface coating material of the integral structure is wrapped by a plurality of layers of Kevlar fiber cloth, the fiber cloth applies pretightening force, and the thickness of the fiber layer coating is 3mm.
The overall areal density of the functionally graded armor structure obtained in example two against a 14.5mm armor-piercing projectile was 82kg/m 2 31mm thick. The anti-bullet test result shows that when the 14.5mm penetrating bullet is at the standard bullet speed of 988m/s, the penetration surface density of the penetrating bullet cannot be 82kg/m under the condition of incidence at the angle of 100m from 0 degree 2 Is a composite material with an anti-elastic structure (the back plate is supported by a 6mm steel plate). Armor structures also have multiple ballistic resistance and an area of 600mm x 500mm can effectively protect 5 shots. Table 2 shows the results of the ballistic test of the functionally graded armor structure obtained in example two.
Table 2 results of ballistic test of functionally graded armor structures obtained in example two
Claims (10)
1. A functional gradient armor structure for resisting a armor-piercing bullet with the diameter of 14.5mm is characterized in that the functional gradient armor structure for resisting the armor-piercing bullet with the diameter of 14.5mm comprises a ceramic panel and a gradient B 4 The overall thickness of the C/Al composite material and the packaging material is 28-35 mm; the packaging material comprises a crack stop layer, an adhesive and a fiber layer; the first layer is a ceramic panel with the thickness of 14-18 mm; the second layer is gradient B 4 C/Al composite, the gradient B 4 The ceramic content in the C/Al composite material is 50-70%, and the thickness is 12-15 mm; the crack-stopping layers are arranged on the outer sides of the first layer, between the first layer and the second layer and on the outer sides of the second layer, and are bonded with the layers through bonding agents; the side surface of the functional gradient armor structure resisting the armor piercing bullet of 14.5mm is coated by a fiber layer.
2. A functionally graded armor structure resistant to a 14.5mm armor-piercing projectile according to claim 1, characterized in that the ceramic content of the functionally graded armor structure resistant to a 14.5mm armor-piercing projectile is gradually transitioned from 100% to 50%.
3. A functionally graded armor structure resistant to armor piercing of 14.5mm as claimed in claim 1, wherein said ceramic face is B 4 C ceramic, siC ceramic, al 2 O 3 Ceramic, modified B 4 C ceramic, modified SiC ceramic or modified Al 2 O 3 A ceramic; the gradient B 4 B in C/Al composite material 4 The particle diameter of the C particles is 5-120 mu m.
4. A functionally graded armor structure against a armor-piercing projectile of 14.5mm according to claim 3, wherein the ceramic panel is formed by a monolithic ceramic or a polygonal ceramic unit, the polygonal ceramic unit is square or hexagonal in shape, and the polygonal ceramic unit has a side-to-side dimension of 32-108 mm.
5. A functionally graded armor structure resistant to a 14.5mm armor piercing projectile as claimed in claim 1, wherein said gradient B 4 The aluminum matrix in the C/Al composite is a 2xxx series aluminum alloy, a 5xxx series aluminum alloy, or a 7xxx series aluminum alloy.
6. A functionally graded armor structure resistant to a armor piercing projectile of 14.5mm as claimed in claim 5 wherein said gradient B 4 The C/Al composite material is formed by 1-5 layers, the ceramic content is reduced layer by layer, and the composite material is prepared by pressure infiltration integration, and the gradient interface is metallurgical bonding.
7. A functionally graded armor structure resistant to a armor piercing projectile of 14.5mm as claimed in claim 6, characterized in that said gradient B 4 The C/Al composite material is a monolithic composite material or a polygonal gradient B 4 C/Al composite material units are spliced to form the polygonal gradient B 4 The C/Al composite material unit is square or hexagonal in shape, and the polygon gradient B 4 The opposite side size of the C/Al composite material unit is 32-108 mm.
8. The functionally graded armor structure resistant to a armor piercing projectile of 14.5mm of claim 1, wherein the crack stop layer is fiberglass cloth or Kevlar cloth.
9. The functionally graded armor structure resistant to armor piercing of 14.5mm of claim 1, wherein said adhesive is a hot melt adhesive or an epoxy adhesive.
10. The functionally graded armor structure resistant to armor piercing of 14.5mm of claim 1, wherein the fibrous layers are formed by winding a plurality of layers of fibrous cloth as lateral restraint material, the fibrous layers having a total thickness of 1-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310515246.1A CN116518780A (en) | 2023-05-09 | 2023-05-09 | Functional gradient armor structure for resisting armor piercing bullet with diameter of 14.5mm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310515246.1A CN116518780A (en) | 2023-05-09 | 2023-05-09 | Functional gradient armor structure for resisting armor piercing bullet with diameter of 14.5mm |
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| CN116518780A true CN116518780A (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310515246.1A Pending CN116518780A (en) | 2023-05-09 | 2023-05-09 | Functional gradient armor structure for resisting armor piercing bullet with diameter of 14.5mm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116907290A (en) * | 2023-08-17 | 2023-10-20 | 咸宁海威复合材料制品有限公司 | Forming method of composite armor resistant to multiple armor piercing combustion bomb |
-
2023
- 2023-05-09 CN CN202310515246.1A patent/CN116518780A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116907290A (en) * | 2023-08-17 | 2023-10-20 | 咸宁海威复合材料制品有限公司 | Forming method of composite armor resistant to multiple armor piercing combustion bomb |
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Inventor after: Chao Zhenlong Inventor after: Jiang Longtao Inventor after: Zhang Runwei Inventor after: Du Shanqi Inventor after: Luo Tian Inventor after: Ge Jiahui Inventor after: Han Bingzhuo Inventor after: Han Huimin Inventor after: Wu Gaohui Inventor before: Chao Zhenlong Inventor before: Wu Gaohui Inventor before: Mei Yong Inventor before: Jiang Longtao Inventor before: Zhang Runwei Inventor before: Du Shanqi Inventor before: Luo Tian Inventor before: Ge Jiahui Inventor before: Han Bingzhuo Inventor before: Han Huimin |
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