A joint multi-effect warhead based on structure-function collaborative design

Through modular hierarchical design and intelligent control, combined with penetration, directional explosion and combustion modules, the problem of the single damage mode of traditional warheads has been solved, achieving efficient multi-effect damage and improving the ability to damage highly protected targets.

CN120313419BActive Publication Date: 2026-02-24BEIJING INST OF TECH
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Patent Information

Application Number
CN202510668150.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-22
Publication Date
2026-02-24
Estimated Expiration
2045-05-22

AI Technical Summary

Technical Problem

Traditional warhead designs have a single destruction mode, making it difficult to effectively destroy high-value targets. Furthermore, the need for strict timing control of multi-stage destruction units leads to decreased reliability, low energy utilization, poor coupling between the propellant and the explosive unit, and insufficient combustion duration.

Method used

It adopts a modular hierarchical design, including a penetration module, a directional explosion module, and a combustion module. Combined with an intelligent control module, it achieves directional energy distribution and precise release through a penetration-explosion-combustion sequential coordination mechanism, using a pre-set crack structure and a microencapsulated aluminothermic composite propellant.

Benefits of technology

It achieves spatial superposition and temporal continuity of triple damage effects, improves penetration depth and combustion temperature, enhances energy utilization and damage efficiency, and ensures uniform propellant dispersion and internal damage to the target.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of based on structure-function synergic design combined multi-effect warhead, belong to ammunition warhead technical field, including penetration module, directional explosion module, combustion module and intelligent control module, penetration module is set in directional explosion module, combustion module and intelligent control module outside, one end of directional explosion module is close to the front end of penetration module, combustion module is close to the end of directional explosion module far from penetration module, intelligent control module is close to the end of combustion module far from combustion module, the application uses above structure, through modularization hierarchical design, energy directional distribution and intelligent trigger mechanism innovation, realize the space-time cooperation of penetration penetration, internal explosion and high-temperature combustion effect, significantly improve the comprehensive damage ability to high-protection target.
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Description

Technical Field

[0001] This invention relates to the field of ammunition warhead technology, and in particular to a combined multi-effect warhead based on structure-function synergy design. Background Technology

[0002] Modern battlefield environments place diverse demands on the destructive effectiveness of munitions. Traditional warheads, limited by their design concepts, often focus on a single damage mode: armor-piercing warheads rely on kinetic energy penetration but lack sufficient aftereffects; high-explosive warheads destroy targets with shockwaves but struggle to penetrate robust armor; and incendiary warheads, while capable of igniting fires, have limited effectiveness against enclosed targets. With the development of composite armor, underground fortifications, and other protective technologies, a single damage mode is no longer sufficient to effectively destroy high-value targets.

[0003] To enhance overall destructive capability, existing technologies attempt to employ tandem composite structures, such as adding an explosive / incendiary unit behind the armor-piercing projectile. However, such designs have significant drawbacks: 1. Multi-stage destructive units require strict timing control, and the increased complexity of the fuze system leads to decreased reliability; 2. Low energy utilization rate of the explosion, as traditional shaped charge liner structures can only achieve a small portion of energy directional release, with the remaining energy being lost through radial diffusion; 3. Poor coupling between the incendiary agent and the explosive unit, with conventional thermite often resulting in a combustion duration of less than 60 seconds due to premature ignition or uneven dispersion, and unable to maintain a self-ignition reaction in a confined space.

[0004] In recent years, some research has shifted to the integration of multifunctional materials, such as energetic fragments and reactive armor, but it is still limited by the bottleneck of material performance: although metal / polymer composite structures can take into account both armor penetration and combustion, the combustion temperature is generally lower than 1800℃; although fractal charge design can optimize energy distribution, it lacks synergistic control with the dynamic fracture of the penetrator.

[0005] Based on this, the present invention proposes a joint multi-effect warhead based on structure-function synergistic design. Summary of the Invention

[0006] The purpose of this invention is to provide a combined multi-effect warhead based on structure-function synergy design. Through modular hierarchical design, energy directional distribution and intelligent triggering mechanism innovation, it achieves spatiotemporal synergy of penetration, internal explosion and high-temperature combustion effects, significantly improving the comprehensive damage capability against highly protected targets.

[0007] To achieve the above objectives, the present invention provides a joint multi-effect warhead based on structure-function synergy design, comprising a penetration module, a directional explosive module, a combustion module, and a smart control module. The penetration module is sleeved on the outside of the directional explosive module, the combustion module, and the smart control module. One end of the directional explosive module is close to the front end of the penetration module, the combustion module is close to the end of the directional explosive module away from the penetration module, and the smart control module is close to the end of the combustion module away from the combustion module.

[0008] Preferably, the penetration module has a conical shell structure, and the length-to-diameter ratio is dynamically adjusted according to the target type. It is made of either tungsten carbide alloy or silicon carbide ceramic material. The penetration module is provided with periodically distributed pre-set crack structures, which are V-shaped cracks, and the distribution density varies gradient along the axis of the penetrator.

[0009] Preferably, the penetration module includes a pointed tip, a head shell, a middle shell, and a tail shell. The pointed tip is located at the front end of the head shell. One end of the middle shell is connected to the head shell, and the other end is connected to the tail shell. The pre-set crack structure is located on the outer surface of the head shell.

[0010] Preferably, the directional detonation module adopts a ring-shaped fractal charge technology design, including a fractal shaped charge shroud and a main charge layer. The front end of the fractal shaped charge shroud adopts a three-dimensional fractal curved surface design. The front end of the fractal shaped charge shroud is connected to the side of the head shell away from the tip. The main charge layer is disposed inside the fractal shaped charge shroud and coupled to the fractal shaped charge shroud. The main charge layer uses high-energy explosives and is disposed at the front end of the combustion module.

[0011] Preferably, the radius of curvature of the three-dimensional fractal surface at the front end of the fractal shaped shroud satisfies the following formula:

[0012] R = 0.25D·(1+sinθ);

[0013] Where R is the radius of curvature, D represents the diameter of the warhead, θ represents the inclination angle of the fractal groove, and θ∈[15°,45°].

[0014] Preferably, the combustion module uses a microencapsulated self-sustaining combustion system, and uses titanium alloy partitions to divide the interior into several symmetrically distributed independent chambers. The inner wall of each independent chamber is coated with a graphene-based lubricating coating, and each independent chamber is equipped with nano-aluminothermic agent.

[0015] Preferably, the nano-aluminothermic agent contains a microencapsulated aluminothermic composite combustion agent. The microencapsulated aluminothermic composite combustion agent is made by mixing nano-aluminum powder and iron oxide and adding magnesium powder. The microencapsulated aluminothermic composite combustion agent particles are encapsulated using polyurethane-silica composite wall technology to ensure that the wall material rupture threshold and the explosion impact pressure are precisely matched.

[0016] Preferably, the encapsulated aluminothermic composite propellant particles have a particle size of 50-200 μm, the ratio of the polyurethane-silica composite wall size to the particle size is 1:15-1:20, and the surface area of ​​the propellant in contact with air after release is ≥5 m². 2 / g, and the combustion time satisfies the following formula:

[0017] t = 0.6m + 20;

[0018] Where t represents the combustion duration and m represents the mass of the propellant, m∈[0.5kg,3kg].

[0019] Preferably, the intelligent control module determines the triggering of the explosion command after the penetration module penetrates the target using a dynamic threshold algorithm, and uses multi-level detonation logic to control the detonation of the main charge layer. It includes an acceleration sensor and a hardness recognition module. The acceleration sensor is connected to the end of the combustion module away from the directional explosion module, and the hardness recognition module is connected to the end of the acceleration sensor away from the combustion module.

[0020] Therefore, the joint multi-effect warhead based on structure-function synergistic design of the present invention, employing the above-described structure, has the following advantages:

[0021] 1. By using a coordinated mechanism of penetration-explosion-combustion sequence, the spatial superposition and temporal continuity of the triple damage effect are achieved, breaking the traditional single damage mode of warheads;

[0022] 2. A pre-set crack structure is set in the gradient of the penetration module to increase the penetration depth and ensure that the penetration module breaks regularly after penetrating the target to achieve directional detonation;

[0023] 3. The use of microencapsulated aluminothermic composite combustion agent in the combustion module, and the coating of polyurethane-silica composite wall, enables the combustion temperature to exceed 2500℃ and the duration to exceed 180 seconds, thereby improving the overall damage performance.

[0024] 4. Breakthroughs in energy directional control and utilization have been achieved. The fractal charge technology achieves precise axial-radial distribution of explosive energy through curved fractal dimensions and annular charge layout, reducing radial energy loss compared to traditional conical shields. At the same time, the use of a pre-cracked penetration module combined with an intelligent control module enables dynamic detonation, ensuring that the explosive shock wave is accurately released after forming the cavity inside the target, thus improving energy utilization compared to the series structure.

[0025] 5. The intelligent control module reduces the failure rate of cross-medium target detonation through combined acceleration and hardness sensing. At the same time, the polyurethane-silica wall of the microcapsule propellant is precisely matched with the explosion pressure, resulting in higher uniformity of propellant dispersion.

[0026] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0027] Figure 1 This is an overall schematic diagram of a combined multi-effect warhead based on structure-function synergistic design according to the present invention;

[0028] Figure 2 This is a schematic diagram of a penetration module of a joint multi-effect warhead based on structure-function synergistic design according to the present invention;

[0029] Figure 3 This is a schematic diagram of a directional detonation module, a combustion module, and an intelligent control module of a combined multi-effect warhead based on a structure-function synergistic design according to the present invention.

[0030] Figure Labels

[0031] 100. Penetration Module; 110. Tip; 120. Head Shell; 130. Middle Shell; 140. Tail Shell; 200. Directional Explosion Module; 210. Main Charge Layer; 220. Fractal Formatting Coil; 300. Combustion Module; 310. Titanium Alloy Partition; 320. Independent Cabin; 400. Intelligent Control Module; 410. Accelerometer; 420. Hardness Recognition Module. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0034] 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.

[0035] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "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 in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limiting this invention.

[0036] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0038] Example 1

[0039] like Figures 1-3 As shown, a combined multi-effect warhead based on structure-function synergy design of the present invention includes a penetration module 100, a directional explosive module 200, an incendiary module 300, and an intelligent control module 400. The penetration module 100 is sleeved on the outside of the directional explosive module 200, the incendiary module 300, and the intelligent control module 400. One end of the directional explosive module 200 is close to the front end of the penetration module 100, the incendiary module 300 is close to the end of the directional explosive module 200 away from the penetration module 100, and the intelligent control module 400 is close to the end of the incendiary module 300 away from the incendiary module 300.

[0040] The penetrating module 100 has a conical shell structure, and its length-to-diameter ratio is dynamically adjusted according to the target type. When applied to a bunker buster, the length-to-diameter ratio of the penetrating module 100 is set to 8:1-12:1. It is made of either tungsten carbide alloy or silicon carbide ceramic material. The penetrating module 100 is provided with a periodically distributed pre-set crack structure. The pre-set crack structure is a V-shaped crack, and the distribution density varies gradient along the axis of the penetrating body. The pre-set crack structure allows the penetrating module 100 to use the stress concentration effect to guide the shell to break regularly along a preset path after penetrating the target, forming a uniform diameter penetration channel, providing optimal cavity conditions for the propagation of the subsequent explosive shock wave and the diffusion of the propellant.

[0041] The penetration module 100 includes a tip 110, a head shell 120, a middle shell 130, and a tail shell 140. The tip 110 is located at the front end outside the head shell 120. One end of the middle shell 130 is connected to the head shell 120, and the other end is connected to the tail shell 140. A pre-set crack structure is provided on the outer surface of the head shell 120.

[0042] The directional explosion module 200 adopts an annular fractal charge technology design, including a fractal shaped charge shroud 220 and a main charge layer 210. The front end of the fractal shaped charge shroud 220 adopts a three-dimensional fractal curved surface design. The front end of the fractal shaped charge shroud 220 is connected to the side of the head shell 120 away from the tip 110. The main charge layer 210 is located inside the fractal shaped charge shroud 220 and is coupled to the fractal shaped charge shroud 220. The main charge layer 210 uses high-energy explosives and is located at the front end of the combustion module 300. The propagation direction of the explosion wave is constrained by the annular geometry and preferentially propagates along the axial direction.

[0043] The radius of curvature of the three-dimensional fractal surface at the front end of the fractal shaped shroud 220 satisfies the following formula:

[0044] R = 0.25D·(1+sinθ);

[0045] Where R is the radius of curvature, D represents the diameter of the warhead, θ represents the inclination angle of the fractal groove, and θ∈[15°,45°]. During the explosion, the fractal structure converts 75%-85% of the energy into an axial shaped jet through self-similar deformation, and the remaining energy drives the radial diffusion of the propellant.

[0046] The high-energy explosive used in this embodiment is CL-20 based polymer-bonded explosive (PBX), with a density of 1.85-1.98 g / cm³. 3 The detonation velocity is ≥9300m / s; the outer surface of the charge layer is covered with an aluminum silicate fiber insulation layer with a thickness of 2-5mm and a thermal conductivity of ≤0.05W / (m·K).

[0047] The combustion module 300 uses a microencapsulated self-sustaining combustion system. It uses a titanium alloy partition 310 to divide the interior into 6-12 symmetrically distributed independent chambers 320. The titanium alloy partition 310 has a thickness of 0.2-0.5 mm and a burst pressure threshold of 15-25 MPa. The inner wall of each independent chamber 320 is coated with a graphene-based lubricating coating, and each independent chamber 320 is equipped with nano-aluminothermic agent.

[0048] The nano-aluminothermic agent contains a microencapsulated aluminothermic composite propellant. The microencapsulated aluminothermic composite propellant is made by mixing nano-aluminum powder and iron oxide and adding magnesium powder. It uses microencapsulation technology to encapsulate the microencapsulated aluminothermic composite propellant particles with a polyurethane-silica composite wall to ensure that the wall material rupture threshold and the explosion impact pressure are precisely matched. When applied to anti-ship missiles, a certain mass ratio of magnesium powder and iron oxide mixture is added to the propellant.

[0049] The encapsulated aluminothermic composite propellant particles have a particle size of 50-200 μm, a polyurethane-silica composite wall-to-particle size ratio of 1:15-1:20, and a surface area in contact with air after propellant release ≥5 m². 2 / g, and the combustion time satisfies the following formula:

[0050] t = 0.6m + 20;

[0051] Where t represents the combustion duration and m represents the mass of the propellant, m∈[0.5kg,3kg].

[0052] The intelligent control module 400 uses a dynamic threshold algorithm to determine whether the penetration module 100 has penetrated the target and triggers an explosion command. It also uses multi-level detonation logic to control the detonation of the main charge layer 210, including an acceleration sensor 410 and a hardness identification module 420. The acceleration sensor 410 is connected to the end of the combustion module 300 away from the directional explosion module 200, and the hardness identification module 420 is connected to the end of the acceleration sensor 410 away from the combustion module 300. The hardness identification module 420 determines the target material (metal / concrete / composite layer) through vibration spectrum analysis. The intelligent control module 400 adjusts the delay according to the target material determined by the hardness identification module 420 to ensure that the explosion occurs within a few milliseconds after the formation of the cavity inside the target.

[0053] During operation, the warhead impacts the target at a certain speed, with the head subjected to peak overload. The pre-set crack guides the shell to form regular holes after penetration. When the acceleration sensor 410 detects an overload value ≥500g and lasts for more than 3ms, the hardness identification module 420 is activated. The hardness identification module 420 determines the target material type (concrete / metal / composite armor) through vibration spectrum analysis and dynamically adjusts the detonation delay of the main charge layer 210 according to the material type. The delay is 5-10ms for concrete targets and 2-5ms for metal targets. After detonation, the fractal shaped charge liner 220 converts most of the energy into an axial jet, expanding the cavity. Then, the explosion pressure breaks through the titanium alloy partition 310, and the nano-aluminothermic agent is ejected into the cavity. After the polyurethane-silica wall ruptures, Al / Fe2O3 reacts with oxygen in the air, and the temperature rises to over 2500℃ within 5 seconds; and continues to damage: burning lasts for more than 180 seconds, and the flame penetrates deep into the concrete cracks, causing structural collapse.

[0054] Example 2

[0055] For concrete bunker targets:

[0056] A density of 14.8 g / cm³ was selected. 3 The penetrating module 100 is made of tungsten carbide alloy with a compressive strength of 2800MPa. Its length-to-diameter ratio is set to 8:1, the total length is 400mm, the head cone angle is 60°, and the shell thickness gradually changes from 5mm at the head to 15mm at the tail. The V-shaped crack depth of the pre-set crack structure is 2.5-7.5mm (30%-50% of the shell thickness of 5-15mm), the crack density is 4 cracks / cm at the head and 9 cracks / cm at the tail, and the crack inclination angle is 45°.

[0057] The main charge layer 210 of the directional explosive module 200 uses CL-20-based PBX explosive (HMX / CL-20 = 3:7), with a charge weight of 3.2 kg and a density of 1.93 g / cm³. 3 The detonation velocity is 9350 m / s; the fractal shaped charge liner 220 is made of copper-zinc alloy (CuZn37), with a fractal dimension of 1.5, a groove inclination angle of θ = 30°, and a radius of curvature of R = 0.25 × 120 mm × (1 + sin30°) = 45 mm.

[0058] The microencapsulated aluminothermic composite propellant of the combustion module 300 has a nano-Al (50nm) / Fe2O3 (150nm) ratio of 3:1, adds 8% magnesium powder (Mg, particle size 20μm), has a polyurethane-silica composite wall thickness of 4μm, a particle size of 150±20μm, a loading of 1.8kg (accounting for 22% of the total mass of the warhead), and is equipped with 8 independent compartments 320 (0.3mm thick), with the inner wall coated with a graphene lubricating layer (friction coefficient 0.08).

[0059] The intelligent control module 400 uses an accelerometer 410 with a range of 0-5000g and a sampling frequency of 10kHz. The hardness recognition module 420 is based on FFT spectrum analysis, with a hardness recognition algorithm for concrete targets in the characteristic frequency band of 15-25kHz and metal targets in the frequency band of 30-45kHz. The detonation logic is to detonate after a delay of 8ms after penetrating the concrete.

[0060] During operation, the warhead impacts the concrete target at a certain speed, with the head subjected to peak overload. Pre-set cracks guide the casing to form regular holes after penetration. Explosion triggering: The fuse detects the overload dropping to the penetration completion signal, and after a delay of a few milliseconds, detonates the main charge. The fractal shaped charge liner 220 converts most of the energy into an axial jet, expanding the cavity. Propellant release: The explosion pressure breaks through the titanium alloy bulkhead, and the propellant is ejected into the cavity. After the microcapsule wall material ruptures, Al / Fe2O3 reacts with oxygen in the air, and the temperature rises to over 2500°C within 5 seconds. Sustained damage: The combustion lasts for 192 seconds, and the flame penetrates deep into the concrete cracks, causing structural collapse.

[0061] Example 3

[0062] Targeting multi-layered armored targets on ships:

[0063] Improvements were made to Example 2 by using silicon carbide ceramic (SiC-Si3N4 composite phase), a penetration module 100 with an aspect ratio of 6:1, and pre-set crack structures with 6 cracks / cm at the head and 12 cracks / cm at the tail to optimize the shearing damage effect on the metal-composite laminate; the combustion module 300 was improved by adding 20% ​​boron powder (B, particle size 5μm) and 10% potassium nitrate (KNO3) to enhance the combustion efficiency on the water surface, and the microcapsule wall thickness was increased to 5μm to resist seawater erosion; the intelligent control module 400 was improved by adding a humidity sensor, which automatically activates the waterproof sealing layer when the relative humidity is detected to be >85%.

[0064] Damage process: After penetrating a 30mm homogeneous steel deck, the fuse identifies the metal material through vibration spectrum and shortens the detonation delay to 3ms; the explosive jet penetrates the internal Kevlar composite layer, forming a 180mm diameter channel; the boron-based propellant reacts with seawater to generate hydrogen, and the fireball temperature reaches 3100℃, igniting the ship's fuel system.

[0065] Therefore, this invention employs a combined multi-effect warhead based on structure-function synergy design, which achieves spatial superposition and temporal continuity of triple damage effects through a penetration-explosion-combustion sequential synergy mechanism, breaking the traditional single damage mode of warheads. The penetration module is gradient-set with pre-placed crack structures, increasing penetration depth and ensuring regular rupture of the penetration module after penetrating the target for directional detonation. The combustion module uses microencapsulated aluminothermic composite propellant, encapsulated by a polyurethane-silica composite wall, resulting in a combustion temperature greater than 2500℃ and a duration greater than 180 seconds, improving overall damage effectiveness and achieving a breakthrough in energy directional control and utilization. Fractal charge technology, through curved fractal dimensions and annular charge layout, achieves precise axial-radial distribution of explosive energy, reducing radial loss. Simultaneously, the penetration module with pre-placed crack structures, combined with an intelligent control module, achieves dynamic detonation, ensuring precise release of the explosive shock wave after formation within the target's internal cavity, improving energy utilization compared to a series structure. The intelligent control module reduces the detonation failure rate by using a combination of acceleration and hardness sensing, while also ensuring a higher uniformity of propellant distribution.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A joint multi-effect warhead based on structure-function synergistic design, characterized in that: It includes a penetration module, a directional explosion module, a combustion module, and an intelligent control module. The penetration module is sleeved on the outside of the directional explosion module, the combustion module, and the intelligent control module. One end of the directional explosion module is close to the front end of the penetration module, the combustion module is close to the end of the directional explosion module away from the penetration module, and the intelligent control module is close to the end of the combustion module away from the combustion module. The intelligent control module uses a dynamic threshold algorithm to determine whether the penetration module has penetrated the target and triggers an explosion command. It also uses multi-level detonation logic to control the detonation of the main charge layer of the directional explosion module. The module includes an acceleration sensor and a hardness recognition module. The acceleration sensor is connected to the end of the combustion module away from the directional explosion module, and the hardness recognition module is connected to the end of the acceleration sensor away from the combustion module.

2. The joint multi-effect warhead based on structure-function synergistic design according to claim 1, characterized in that: The penetration module has a conical shell structure, and its length-to-diameter ratio is dynamically adjusted according to the target type. It is made of either tungsten carbide alloy or silicon carbide ceramic material. The penetration module is provided with periodically distributed pre-set crack structures. The pre-set crack structures are V-shaped cracks, and their distribution density varies gradient along the axis of the penetrator.

3. A joint multi-effect warhead based on structure-function synergistic design according to claim 2, characterized in that: The penetration module includes a pointed tip, a head shell, a middle shell, and a tail shell. The pointed tip is located at the front end of the head shell. One end of the middle shell is connected to the head shell, and the other end is connected to the tail shell. The pre-set crack structure is located on the outer surface of the head shell.

4. A joint multi-effect warhead based on structure-function synergistic design according to claim 3, characterized in that: The directional detonation module is designed using annular fractal charge technology, including a fractal shaped charge shroud and a main charge layer. The front end of the fractal shaped charge shroud adopts a three-dimensional fractal curved surface design. The front end of the fractal shaped charge shroud is connected to the side of the head shell away from the tip. The main charge layer is located inside the fractal shaped charge shroud and coupled to it. The main charge layer uses high-energy explosives and is located at the front end of the combustion module.

5. A joint multi-effect warhead based on structure-function synergistic design according to claim 4, characterized in that: The radius of curvature of the three-dimensional fractal surface at the front end of the fractal shaped shroud satisfies the following formula: ; Where R is the radius of curvature and D represents the diameter of the warhead. Indicates the inclination angle of the fractal groove, and .

6. A joint multi-effect warhead based on structure-function synergistic design according to claim 5, characterized in that: The combustion module uses a microencapsulated self-sustaining combustion system, and uses titanium alloy partitions to divide the interior into several symmetrically distributed independent chambers. The inner wall of each independent chamber is coated with a graphene-based lubricating coating, and each independent chamber is equipped with nano-aluminothermic agent.

7. A joint multi-effect warhead based on structure-function synergistic design according to claim 6, characterized in that: The nano-aluminothermic agent contains a microencapsulated aluminothermic composite combustion agent, which is made by mixing nano-aluminum powder and iron oxide and adding magnesium powder. The microencapsulated aluminothermic composite combustion agent particles are encapsulated using polyurethane-silica composite wall technology to ensure that the wall material rupture threshold and the explosion impact pressure are precisely matched.

8. A joint multi-effect warhead based on structure-function synergistic design according to claim 7, characterized in that: The particle size of the microencapsulated aluminothermic composite combustion agent particles is The surface area of ​​the propellant in contact with air after release And the combustion time satisfies the following formula: ; Where t represents the combustion duration and m represents the mass of the propellant. .

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