Transverse effect enhanced penetration body adopting fracture structure
By designing a breaking groove on the hood of the active inner core PELE bullet, the deformation and reaction time of the inner core is controlled, and the problem of the inner core broken prematurely when the active inner core PELE bullet penetrates the thicker target plate is solved, improving the penetration performance of the elastic body and the damage effect after the target are improved.
Patent Information
- Application Number
- CN202422349282.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-24
AI Technical Summary
When the active inner core PELE bullet penetrates the thicker target plate, some of the active inner core breaks and reacts in front of the target, resulting in higher shell velocity and mass losses than traditional PELE bullets, reducing the invasion performance.
The lateral effect enhanced penetration body is adopted with a fractured structure, including an active inner core PELE bullet and a wind hood arranged on its head. The wind hood is equipped with a breaking groove in the circumference of itself to control the deformation of the inner core, prevent premature breakage, and completely deflagrate the inner core after the elastic body is completely penetrated.
By controlling the crushing range of the head of the bullet and the integrity of the inner core, the reaction time of the inner core is delayed, ensuring that the bullet produces a higher damage effect behind the target, and at the same time improving the invasion performance of the PELE bullet.
Smart Images
Figure CN222978726U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laterally enhanced penetrators, and particularly to a laterally enhanced penetrator with a fracture structure. Background Art
[0002] A laterally enhanced penetrator (PELE, Penetrator with Enhanced Lateral Effect) is a new type of armor-piercing warhead that utilizes the property difference between the projectile shell and the inner core material to convert part of the axial kinetic energy into radial kinetic energy. Its structural schematic diagram is as Figure 1 shown. This type of ammunition has good penetration ability and post-target fragment damage power. There is no high-energy explosive inside its projectile body, and it is not equipped with a fuse. It mainly relies on physical action to make the projectile penetrate the target, and then the shell cracks to form fragments to attack the post-target.
[0003] In recent years, with the extensive research and application of reactive materials, there has emerged a reactive inner core PELE projectile with reactive materials applied to the inner core of the PELE, and its structural schematic diagram is as Figure 2 shown. Compared with inert inner core materials, reactive inner core materials can react and actively release energy when the projectile penetrates the target plate, causing the shell to rupture to produce more fragments and obtain higher speeds, and may even ignite and detonate other targets behind the target plate, thereby causing double damage, physical and chemical, to the target.
[0004] As Figure 3 shown, the traditional PELE projectile can exhibit good penetration performance when penetrating the target plate. During the penetration process, the inner core is squeezed between the target plate and the outer shell, generating a radial force on the outer shell. After penetrating the target plate, the force on the PELE projectile by the target plate is suddenly unloaded, and the stress of the outer shell and the inner core is released behind the target. The outer shell decomposes into a large number of fragments radially to effectively damage the post-target; if a reactive inner core is used, chemical energy will be released simultaneously to enhance the kinetic energy of the fragments and may even produce an arson effect. However, as Figure 4 shown, when the reactive inner core PELE projectile penetrates a relatively thick target plate, part of the reactive inner core will break and react in front of the target. The products generated by the reaction exert a radial force on the outer shell, destroying the penetration profile of the projectile body and ultimately resulting in higher velocity loss and mass loss of the shell than the traditional PELE projectile, thus causing the penetration performance of the reactive inner core PELE projectile to be inferior to that of the traditional PELE projectile. Summary of the Utility Model
[0005] The technical problem to be solved by the utility model is to provide a laterally enhanced penetrator with a fracture structure that can improve the penetration performance of a reactive inner core PELE projectile when penetrating a relatively thick target plate.
[0006] To solve the above technical problems, the present utility model adopts the following technical solution: A laterally enhanced penetrator with a fracture structure, comprising an active inner core PELE projectile and a wind cap provided at the head of the active inner core PELE projectile, and a fracture groove is formed along the circumferential direction of one end of the wind cap close to the active inner core PELE projectile.
[0007] Furthermore, the wind cap is in contact with the inner core of the active inner core PELE projectile.
[0008] Furthermore, the cross-section of the fracture groove is triangular, and the included angle between the two side walls of the fracture groove is ninety degrees.
[0009] Furthermore, the fracture groove includes a first groove with a triangular cross-section and a second groove that is connected to the first groove and has a right trapezoidal cross-section, and the included angle between one side wall of the first groove and one side wall of the second groove is forty-five degrees.
[0010] Furthermore, the depth range of the fracture groove 201 is 0.04D - 0.05D, where D is the diameter of the active inner core PELE projectile.
[0011] Furthermore, the wind cap is made of steel or tungsten alloy material.
[0012] Furthermore, the front end of the diameter of the wind cap is pointed.
[0013] The beneficial effects of the present utility model are as follows:
[0014] 1. Through the fracture groove at the wind cap, when the projectile penetrates the target plate in the early stage, only slight deformation occurs in its inner core, thereby controlling the fragmentation range at the head of the projectile and better protecting the integrity of the inner core structure. It effectively prevents the inner core from prematurely fragmenting in front of the target. After part of the projectile passes through the target plate, the inner core starts to react, and when the projectile completely passes through the target plate, the inner core undergoes complete deflagration, thereby ensuring an improved damage effect of the projectile behind the target.
[0015] 2. The wind cap made of steel or tungsten alloy material has better penetration performance, which is beneficial for cratering during penetration, thereby improving the penetration performance of the PELE projectile.
[0016] 3. The pointed structure of the wind cap is beneficial for reducing air resistance during the flight of the active inner core PELE projectile, thereby reducing kinetic energy loss, enabling the PELE projectile to maintain a relatively high velocity when contacting the target plate. At the same time, the pointed head is also beneficial for cratering during penetration, correspondingly improving the penetration performance of the PELE projectile. Description of the Drawings
[0017] Figure 1 is a schematic diagram of the structure of the traditional PELE projectile of the present utility model;
[0018] Figure 2 It is a schematic structural diagram of the active core PELE bullet of the present utility model;
[0019] Figure 3 It is a schematic diagram of the penetration of a traditional PELE bullet of the present utility model into a thick target plate;
[0020] Figure 4 It is a schematic diagram of the penetration of the active core PELE of the present utility model into a thick target plate;
[0021] Figure 5 It is a schematic structural diagram of the active core PELE bullet with a fracture groove structure of the present utility model;
[0022] Figure 6 It is a cross-sectional view of the active core PELE bullet with a fracture groove structure of the present utility model;
[0023] Figure 7 It is a schematic diagram of the structure of the first fracture groove of the present utility model;
[0024] Figure 8 It is a schematic diagram of the structure of the second fracture groove of the present utility model;
[0025] Figure 9 It is Figure 8 The enlarged view of part A;
[0026] Figure 10 It is a finite element analysis model diagram of the active core PELE bullet with a fracture groove structure of the present utility model impacting an Al target plate;
[0027] Figure 11 It is a diagram of the temperature distribution and change process outside the bullet body after the active core PELE bullet with a fracture groove structure of the present utility model impacts the target plate;
[0028] Figure 12 It is a diagram of the reaction temperature distribution and change process of the inner core after the active core PELE bullet with a fracture groove structure of the present utility model impacts the target plate.
[0029] The marks of each component in the drawings are: 1. Active core PELE bullet; 101. Inner core; 2. Wind cap; 201. Fracture groove; 2011. First groove; 2012. Second groove. Specific implementation mode
[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0031] Embodiment 1
[0032] See Figure 5 、 10 、11, 12.
[0033] A laterally enhanced penetrator with a fracture structure includes an active inner core PELE projectile 1 and a nose cap 2 provided at the head of the active inner core PELE projectile 1, and a fracture groove 201 is formed along the circumferential direction of one end of the nose cap 2 close to the active inner core PELE projectile 1. With this design, through the fracture groove 201 at the nose cap 2, during the early stage of the projectile penetrating the target plate, only slight deformation occurs in its inner core 101, thus controlling the fragmentation range at the head of the projectile and better protecting the integrity of the inner core 101 structure, effectively preventing the inner core 101 from prematurely fragmenting in front of the target. After part of the projectile passes through the target plate, the inner core 101 starts to react, and when the projectile completely passes through the target plate, the inner core 101 undergoes complete deflagration, thereby ensuring an improved damage effect of the projectile behind the target.
[0034] In this embodiment, see Figure 6 , the nose cap 2 is in contact with the inner core 101 of the active inner core PELE projectile 1. With this design, when the projectile penetrates the target plate, after the fracture groove 201 contacts the target plate, the part of the nose cap 2 in contact with the inner core 101 reacts with the inner core 101, causing the inner core 101 to undergo complete deflagration after the projectile completely passes through the target plate.
[0035] In this embodiment, see Figure 7 , the cross-section of the fracture groove 201 is triangular, and the included angle between the two side walls of the fracture groove 201 is 90 degrees.
[0036] In this embodiment, see Figure 7 , the groove depth range of the fracture groove 201 is 0.04D - 0.05D, where D is the diameter of the active inner core PELE projectile 1. With this design, in cooperation with the grooving angle of the fracture groove, it is ensured that the grooving depth of the fracture groove 201 is neither too large nor too small, ensuring that only slight deformation occurs in the inner core 101 during the early stage of the projectile penetrating the target plate.
[0037] In this embodiment, the wind cap 2 is made of steel or tungsten alloy material. With such design, the active core PELE projectile 1 has better penetration performance, which is beneficial to cratering during penetration, thereby improving the penetration performance of the PELE projectile.
[0038] In this embodiment, referring to Figure 5 , the front end of the diameter of the wind cap 2 is pointed. With such design, while reducing air resistance, it is also beneficial to cratering during penetration, thereby improving the penetration performance of the projectile body.
[0039] Embodiment Two
[0040] It should be noted that in this embodiment, compared with Embodiment One, only the cross-sectional shape of the fracture groove 201 is different, and other structures are the same.
[0041] In this embodiment, referring to Figure 8 、 9 , the fracture groove 201 includes a first groove 2011 with a triangular cross-section and a second groove 2012 that is connected to the first groove 2011 and has a right trapezoidal cross-section, and the included angle between one side wall of the first groove 2011 and one side wall of the second groove 2012 is 45 degrees. With such design, by adding the second groove 2012, after the projectile body 1 is grooved, the distance between the part of the projectile body 1 corresponding to the front side of the fracture groove 201 and the part of the projectile body 1 corresponding to the rear side of the fracture groove 201 is ensured to be sufficient, so as to ensure that during the early stage of the projectile penetrating the target plate, the inner core 101 only undergoes slight deformation.
[0042] In summary, the present utility model adopts a transverse effect enhanced penetrator with a fracture structure:
[0043] 1. Through the fracture groove 201 at the wind cap 2, during the early stage of the projectile penetrating the target plate, the inner core 101 of the projectile only undergoes slight deformation, thereby controlling the fragmentation range of the projectile head, and also better protecting the integrity of the inner core 101 structure, effectively preventing the inner core 101 from prematurely fragmenting in front of the target. After part of the projectile passes through the target plate, the inner core 101 starts to react, and when the projectile completely passes through the target plate, the inner core 101 undergoes complete deflagration, thereby ensuring an improved damage effect of the projectile behind the target;
[0044] 2. The wind cap 2 made of steel or tungsten alloy material has better penetration performance, which is beneficial to cratering during penetration, thereby improving the penetration performance of the PELE projectile;
[0045] 3. The pointed structure of the wind cap 2 is beneficial to reducing air resistance during the flight of the active core PELE projectile, thereby reducing kinetic energy loss, enabling the PELE projectile to maintain a relatively high velocity when contacting the target plate. At the same time, the pointed head is also beneficial to cratering during penetration, correspondingly improving the penetration performance of the PELE projectile.
[0046] It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present utility model. Those skilled in the art can make various modifications or changes based on it. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
[0047] It should be noted that if there are directional indications such as up, down, left, right, front, back,... in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture as shown in the drawings. If this specific posture changes, then the directional indications will also change accordingly.
[0048] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, "a plurality of" means two or more. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
Claims
1. A lateral effect enhanced penetrator using a fracture structure, characterized in that: It comprises an active inner core PELE bullet (1) and a wind cap (2) arranged at the head of the active inner core PELE bullet (1), and the wind cap (2) is provided with a fracture groove (201) along its circumference at one end close to the active inner core PELE bullet (1).
2. The lateral effect enhanced penetrator with a fracture structure according to claim 1, characterized in that: The wind cap (2) is in contact with the inner core (101) of the active inner core PELE bullet (1).
3. The lateral effect enhanced penetrator with a fracture structure according to claim 1 or 2, characterized in that: The cross section of the fracture groove (201) is triangular, and the included angle between the groove walls on both sides of the fracture groove (201) is ninety degrees.
4. The lateral effect enhanced penetrator with a fracture structure according to claim 1 or 2, characterized in that: The fracture groove (201) comprises a first groove (2011) having a triangular cross section and a second groove (2012) connected to the first groove (2011) and having a right-angled trapezoidal cross section, and the angle between a groove wall on one side of the first groove (2011) and a groove wall on one side of the second groove (2012) is forty-five degrees.
5. The lateral effect enhanced penetrator with a fracture structure according to claim 1, characterized in that: The groove depth of the fracture groove (201) ranges from 0.04D to 0.05D, wherein D is the diameter of the active inner core PELE bullet (1).
6. The lateral effect enhanced penetrator with a fracture structure according to claim 1, characterized in that: The wind cap (2) is made of steel or tungsten alloy material.
7. The lateral effect enhanced penetrator with a fracture structure according to claim 1, characterized in that: The front end of the diameter of the hood (2) is pointed.