CN114543593A - Embedded hard rock matrix composite bullet-resistant plate - Google Patents
Embedded hard rock matrix composite bullet-resistant plate Download PDFInfo
- Publication number
- CN114543593A CN114543593A CN202210024560.5A CN202210024560A CN114543593A CN 114543593 A CN114543593 A CN 114543593A CN 202210024560 A CN202210024560 A CN 202210024560A CN 114543593 A CN114543593 A CN 114543593A
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- Prior art keywords
- hard rock
- rock matrix
- panel
- collapse
- mosaic
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- 239000011435 rock Substances 0.000 title claims abstract description 84
- 239000011159 matrix material Substances 0.000 title claims abstract description 48
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 3
- 229920002396 Polyurea Polymers 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 21
- 239000000919 ceramic Substances 0.000 description 15
- 230000009471 action Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000010438 granite Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011374 ultra-high-performance concrete Substances 0.000 description 2
- 229910052580 B4C Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
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
Abstract
The invention discloses an embedded hard rock matrix composite anti-elastic plate, which comprises at least one hard rock matrix anti-elastic layer, a panel for limiting the hard rock matrix anti-elastic layer and an anti-caving back plate for preventing the hard rock matrix anti-elastic layer from caving, wherein the panel, the hard rock matrix anti-elastic layer and the anti-caving back plate are fixedly connected in sequence; if the composite material comprises more than two hard rock matrix elastic layers, the hard rock matrix elastic layers are overlapped in a staggered manner. The invention takes the hard rock as the bulletproof material, can utilize the good bulletproof performance and the relatively low density of the bulletproof material, and the hard rock is a natural hard material commonly existing in the earth crust, has low cost and is easy to obtain.
Description
Technical Field
The invention relates to an embedded hard rock matrix composite bullet-resistant plate, and belongs to the technical field of bullet-resistant protection.
Background
In order to resist the impact local destruction (such as penetration and puncture of bullet) of the projectile body (such as bullet, shell and armor piercing bullet) launched by firearms such as gun and cannon and protect personnel and property, high-strength materials are generally used as a substrate, and an anti-ballistic plate with a certain thickness is manufactured to resist the destruction, wherein the high-strength materials comprise high-strength steel, high-strength composite materials, bulletproof ceramics, concrete, rock and the like. In order to ensure the ballistic effect and to reduce the weight of the ballistic panel as much as possible, ballistic ceramics have been used relatively commonly. The corundum is used in the equipment of war chariot and airplane, etc. it is made up by using corundum (aluminium oxide, Al)2O3) The composite protective armor design with the ceramic material as the protective panel can obviously improve the protective performance of the material; the domestic reports also show that the application of the high-performance ceramic material and the composite armor material thereof in ground protection engineering obviously improves the bulletproof performance of the engineering.
When the high speed bullet impacts the panel, the tip of the bullet quickly blunts under the action of compression waves and abrasion and breaks under the action of stress waves. Meanwhile, cracks which rapidly develop radially to the periphery by taking the impact point as the center appear on the ceramic panel. Furthermore, the action of the shock wave produces hoop stresses which propagate around the point of impact and limit the further propagation of cracks in the radial ceramic, causing the ceramic to form a failure cone. The warhead can break the circular cone along with this pottery and extrude the backplate material together to transmit impact stress to great backplate region, improve the efficiency that the backplate consumed the shot energy.
Although the bulletproof ceramic panel has high penetration resistance, the bulletproof ceramic panel has some defects:
(1) different from common civil ceramics, the bulletproof ceramics have the advantages of complex processing technology, high equipment specialization degree, high technical threshold and difficult acquisition; (2) the sintering process of the bulletproof ceramic determines that the size of a single block of the bulletproof ceramic cannot be too large, otherwise, the problems of surface warping, initial cracks and the like caused by thermal stress are easy to occur, and the bulletproof ceramic cannot be applied to the protection of large-scale facilities; (3) the bulletproof ceramic is expensive, is mainly used for a mobility target with higher value, and is difficult to popularize in large-scale and wide-range engineering and large-scale facility protection.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an embedded hard rock matrix composite bulletproof plate, which takes hard rock as a bulletproof material, adopts a polygonal structure to restrict granite, adopts a staggered seam overlapping mode to distribute, has a more stable structure and can effectively prevent a projectile from attacking.
In order to achieve the purpose, the invention provides an embedded hard rock matrix composite anti-elastic plate, which comprises at least one hard rock matrix anti-elastic layer, a panel for limiting the hard rock matrix anti-elastic layer and an anti-collapse back plate for preventing the hard rock matrix anti-elastic layer from collapsing, wherein the panel, the hard rock matrix anti-elastic layer and the anti-collapse back plate are fixedly connected in sequence; if the composite material comprises more than two hard rock matrix elastic layers, the hard rock matrix elastic layers are overlapped in a staggered manner.
Preferably, the hard rock matrix bullet-resistant layer comprises a hard rock prism body and a plurality of constraint frames for limiting the collapse range of the hard rock prism body, the plurality of constraint frames are fixedly connected with each other, and the hard rock prism body is fixedly distributed in each constraint frame.
Preferably, a glue is included that fills the gap between the constraining frame and the hard rock prism.
Preferably, the rock prism is hard rock.
Preferably, the plurality of constraining frames are inlaid into each other, and the constraining frames are three-dimensional structures with polygonal cross sections.
Preferably, the anti-collapse back sheet comprises a back sheet and an anti-collapse coating, the back sheet being coated with the anti-collapse coating on one or both sides.
Preferably, the anti-collapse coating is polyurea.
Preferably, the back plate is made of a plate or a contour plate, and the material is light high-strength metal or composite material.
Preferably, the panel is a plate or a contour plate, and the material is light high-strength metal or composite material.
The invention achieves the following beneficial effects:
1. the invention takes hard rock as the bulletproof material, the hard rock is the natural hard rock commonly existing in the earth crust, the material is convenient to obtain, the cost is low, and the acquisition is easy; the size of the hard rock can be cut according to actual requirements, so that the application range of the invention is wide and wider; the elastic resistance of the complete hard rock exceeds that of the ultra-high performance concrete, so that the concrete is very suitable for elastic resistance protection of engineering and large-scale facilities; the invention adopts a staggered and superposed polygonal three-dimensional structure to restrain the hard rock and a layered protection structure, so that the bulletproof capability is stronger.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a block diagram of a hard rock matrix ballistic layer of the present invention;
figure 3 is a top view of a two layer hard rock matrix ballistic layer of the present invention.
Reference sign means, 1-panel; 2-hard rock matrix bullet-resistant layer; 3-a fixing piece; 4-anti-collapse coating; 5-a back plate; 6-constraint box.
Detailed Description
The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
It should be noted that, if there is a directional indication (such as up, down, left, right, front, and back) in the embodiment of the present invention, it is only used to explain the relative position relationship between the components, the motion situation, and the like in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
The object of the present invention is to provide a solution to the above drawbacks by providing a mosaic ballistic panel in which hard rock replaces the ballistic ceramic. Hard rock is the natural hard rock ubiquitous in the earth's crust and is less dense than alumina and slightly more dense than boron carbide. It can be cut from mountain, and its single block size can be up to meter level, and its cost is low. Although lacking direct comparison with bulletproof ceramics, experiments show that the complete hard rock has better bulletproof capability than ultra-high performance concrete, so that the complete hard rock is very suitable for the bulletproof protection of engineering and large facilities.
As shown in fig. 1, the mosaic hard rock matrix composite bullet-resistant plate comprises the following parts: panel, hard rock matrix bullet resistant layer and anti back plate that collapses, the hard rock adopts granite in this embodiment.
a. The panel is a plate or a contour plate, is made of light high-strength metal or composite material and is mainly used for packaging;
b. the hard rock matrix ballistic layer consists of a preformed polygonal solid confinement frame and hard rock prisms embedded therein (fig. 2). The restriction frame is formed by inlaying a plurality of polygon units, and the shape and the side length of each polygon can be adjusted according to needs. In order to ensure good contact between the hard rock prism and the constraining frame, the side length of the hard rock prism should be slightly smaller than the inner side length of the constraining frame for easy insertion, and the gap between the two is filled with a glue. The hard rock matrix bullet-resistant layer is mainly used for resisting penetration and penetration effects of high-speed bullets.
c. The anti-collapse back plate is realized by coating an anti-collapse coating on the outside of the back plate, and a light high-strength metal or composite material plate or a contour plate with good toughness can also be directly adopted. The anti-collapse back plate is mainly used for preventing the collapse effect of the hard rock matrix anti-collapse layer under the action of the high-speed elastomers and is also used for packaging.
d. Besides the main functions, each part also needs to bear other loads and temperature change effects in the processes of processing, mounting and transportation, so that each part respectively meets certain strength and rigidity requirements, and cannot be damaged or excessively deformed due to other loads and temperature change effects. The panel, the polygonal restraint frame and the anti-collapse back plate are reliably connected through bolts or other modes.
e. The hard rock prism is obtained by cutting and processing a rock block with high integrity, and the surface of the hard rock prism is polished to meet certain smoothness.
The core principle of the scheme is as follows:
(1) when the bullet body hits the bullet-resistant plate, the panel is punctured and the bullet-resistant plate collides with the hard rock matrix bullet-resistant layer, and at the moment, the bullet body directly hits one or a plurality of polygonal units and is mainly resisted by the hard rock matrix bullet-resistant layer in an impact action. When the hard rock matrix elastic-resistant layer generates backward collapse fragments, the anti-collapse back plate can prevent the fragments from penetrating through the back surface to cause secondary damage.
(2) Since the hard rock prisms fixed in different polygonal units are relatively independent of each other, the damage of hard rock is limited to a certain area, and other units can still keep intact and continue to exert the bullet-resistant effect. In addition, due to the constraint action of the constraint frame, the broken hard rock matrix can still maintain certain integrity and continue to bear certain impact destruction action. Therefore, the bullet-resistant plate designed by the scheme can bear multiple impact actions of the bullet body.
(3) If a plurality of hard rock matrix elastic-resistant layers are adopted, the upper layer and the lower layer are overlapped in a staggered manner, and the elastic resistance can be effectively improved compared with a single-layer elastic-resistant plate. This is not only because of the increased thickness but also because the staggering action can cause the projectile to deflect or tumble, thereby attenuating its impact force.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. An embedded hard rock matrix composite anti-elastic plate is characterized by comprising at least one hard rock matrix anti-elastic layer, a panel for limiting the hard rock matrix anti-elastic layer and an anti-collapse back plate for preventing the hard rock matrix anti-elastic layer from collapsing, wherein the panel, the hard rock matrix anti-elastic layer and the anti-collapse back plate are fixedly connected in sequence; if the composite material comprises more than two hard rock matrix elastic layers, the hard rock matrix elastic layers are overlapped in a staggered manner.
2. The mosaic hard rock matrix composite ballistic panel of claim 1,
the hard rock matrix bullet-resistant layer comprises a hard rock prism body and a plurality of constraint frames for limiting the collapse range of the hard rock prism body, the plurality of constraint frames are fixedly connected with one another, and the hard rock prism body is fixedly distributed in each constraint frame.
3. The mosaic hard rock matrix composite ballistic panel of claim 2,
comprising a glue filling the gap between the confinement frame and the hard rock prism.
4. The mosaic hard rock matrix composite ballistic panel of claim 2,
the rock prism is hard rock.
5. The mosaic hard rock matrix composite ballistic panel of claim 2,
the plurality of constraint frames are inlaid with each other, and the constraint frames are of a three-dimensional structure with a polygonal cross section.
6. The mosaic hard rock matrix composite ballistic panel of claim 1,
the anti-collapse back plate comprises a back plate and an anti-collapse coating, wherein the back plate is coated with the anti-collapse coating on one side or two sides.
7. The mosaic hard rock matrix composite ballistic resistant panel of claim 6,
the anti-collapse coating is polyurea.
8. The mosaic hard rock matrix composite ballistic panel of claim 6,
the back plate is made of a plate or a contour plate, and the material is light high-strength metal or composite material.
9. The mosaic hard rock matrix composite ballistic panel of claim 1, wherein the panel is a sheet or contoured panel made of a lightweight high strength metal or composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210024560.5A CN114543593A (en) | 2022-01-11 | 2022-01-11 | Embedded hard rock matrix composite bullet-resistant plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210024560.5A CN114543593A (en) | 2022-01-11 | 2022-01-11 | Embedded hard rock matrix composite bullet-resistant plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114543593A true CN114543593A (en) | 2022-05-27 |
Family
ID=81670560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210024560.5A Pending CN114543593A (en) | 2022-01-11 | 2022-01-11 | Embedded hard rock matrix composite bullet-resistant plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114543593A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07243796A (en) * | 1994-02-23 | 1995-09-19 | Dan Eric | Shock absorption fender |
| US20090090236A1 (en) * | 2007-10-03 | 2009-04-09 | Martin Marietta Materials, Inc. | Modular blast-resistant panel system for reinforcing existing structures |
| US20090169855A1 (en) * | 2004-04-05 | 2009-07-02 | George Tunis | Armor Panel System |
| CN102449426A (en) * | 2009-05-04 | 2012-05-09 | Ppg工业俄亥俄公司 | Composite Materials and Applications Thereof |
| CN110006291A (en) * | 2018-08-29 | 2019-07-12 | 施柏山 | High impact-resistant basalt bullet proof composite plating |
| CN210533184U (en) * | 2019-06-23 | 2020-05-15 | 南京理工大学 | Bulletproof flashboard structure based on bulletproof ceramic pieces |
| CN111705993A (en) * | 2020-06-24 | 2020-09-25 | 王子国 | Prestressed restraint block and composite armor structure |
| CN111912296A (en) * | 2020-08-31 | 2020-11-10 | 江苏科技大学 | Composite protection plate with non-equal-diameter ceramic balls and application and manufacturing method thereof |
| CN214792793U (en) * | 2021-02-25 | 2021-11-19 | 青岛理工大学 | Frustum inlays crowded assembled composite protection structure |
-
2022
- 2022-01-11 CN CN202210024560.5A patent/CN114543593A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07243796A (en) * | 1994-02-23 | 1995-09-19 | Dan Eric | Shock absorption fender |
| US20090169855A1 (en) * | 2004-04-05 | 2009-07-02 | George Tunis | Armor Panel System |
| US20090090236A1 (en) * | 2007-10-03 | 2009-04-09 | Martin Marietta Materials, Inc. | Modular blast-resistant panel system for reinforcing existing structures |
| CN102449426A (en) * | 2009-05-04 | 2012-05-09 | Ppg工业俄亥俄公司 | Composite Materials and Applications Thereof |
| CN110006291A (en) * | 2018-08-29 | 2019-07-12 | 施柏山 | High impact-resistant basalt bullet proof composite plating |
| CN210533184U (en) * | 2019-06-23 | 2020-05-15 | 南京理工大学 | Bulletproof flashboard structure based on bulletproof ceramic pieces |
| CN111705993A (en) * | 2020-06-24 | 2020-09-25 | 王子国 | Prestressed restraint block and composite armor structure |
| CN111912296A (en) * | 2020-08-31 | 2020-11-10 | 江苏科技大学 | Composite protection plate with non-equal-diameter ceramic balls and application and manufacturing method thereof |
| CN214792793U (en) * | 2021-02-25 | 2021-11-19 | 青岛理工大学 | Frustum inlays crowded assembled composite protection structure |
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