A method and system for determining the penetration performance of a bundled tungsten wire reinforced composite material

Abstract

The present invention relates to a method and system for determining the penetration performance of a clustered tungsten wire reinforced composite material. The method comprises obtaining a clustered tungsten wire reinforced composite material and a corresponding 2D grid model under different torsion process parameters; obtaining a test sample and a 2D grid model of a corresponding area; performing uniaxial dynamic compression on the test sample using a split Hopkinson pressure bar test SHPB to obtain a uniaxial compression stress-strain curve of the corresponding area; performing SHPB simulation simulation using an ANSYS / LS-DYNA solver based on the uniaxial compression stress-strain curve and the 2D grid model of the corresponding area to determine constitutive parameters; performing finite element simulation of a composite projectile penetrating a target plate using an ANSYS / LS-DYNA solver based on the 2D grid model and corresponding constitutive parameters of the clustered tungsten wire reinforced composite material to determine the penetration depth of the clustered tungsten wire reinforced composite material. The present invention can determine the penetration performance of the clustered tungsten wire reinforced composite material.

Description

Technical Field

[0001] The present invention relates to the field of material high-strain mechanical behavior simulation and performance prediction, and in particular to a method and system for determining the penetration performance of a bundled tungsten wire reinforced composite material. Background Art

[0002] As an important weapon in modern warfare, armor-piercing bullets rely mainly on the kinetic energy of the bullet core to penetrate the armor, thereby directly causing fatal damage to personnel and equipment in the armored target. During the armor-piercing process, it is necessary to ensure that the head of the residual bullet body does not have a mushroom head, and the head always remains sharp, such as Figure 1 As shown. At present, the main material commonly used in armor-piercing projectile cores is high-density tungsten alloy, but the strength of tungsten alloy is limited, and the self-sharpening performance of the projectile core is not high enough, which limits the penetration depth of the tungsten alloy projectile core. Therefore, researchers have gradually developed tungsten fiber reinforced composite materials based on traditional tungsten alloys. In addition, the projectile core will inevitably be subjected to tensile stress during the firing process, so the matrix material needs to have a certain plasticity to ensure that the projectile core does not break brittlely. Copper-based alloys not only have relatively good plasticity, but also have good self-sharpening performance and high density. It was found that the Zn element can improve the interface bonding between the tungsten phase and the matrix, and is a matrix material with good application potential.

[0003] Based on current research findings, when loading along the radial direction of the straight fiber and the 45° angle direction, the plasticity of the composite material is significantly reduced. Therefore, by precisely controlling the orientation of the tungsten fiber and utilizing the anisotropic characteristics of the tungsten fiber, a composite material with good self-sharpening properties can be prepared. In short, by formulating process parameters including tungsten wire diameter, torsion ratio and angle, precise control of the orientation and distribution of tungsten wires in the center and edge areas of the cluster reinforced composite can be achieved, forming a performance difference of poor plasticity in the edge area and high strength in the center area, thereby ensuring that the material has good self-sharpening properties.

[0004] In summary, for clustered tungsten wire reinforced composites, accurately formulating the torsion process parameters and analyzing the changes in the organizational properties brought about by different torsion processes have important guiding significance for evaluating the application of clustered tungsten wire reinforced composites in related fields. However, there are relatively few studies on clustered tungsten wire reinforced composites, and the understanding of the fracture behavior of clustered tungsten wire reinforced composites under different torsion processes is not in-depth enough.

[0005] Therefore, there is an urgent need to provide a simulation prediction method with penetration performance as a quantitative indicator, so as to achieve the purpose of optimizing process parameters and promote the application of clustered tungsten wire composites in related fields. Summary of the invention

[0006] The object of the present invention is to provide a method and system for determining the penetration performance of a bundled tungsten wire reinforced composite material, which can determine the penetration performance of the bundled tungsten wire reinforced composite material.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] A method for determining the penetration performance of a bundled tungsten wire reinforced composite material, comprising:

[0009] Obtain the clustered tungsten wire reinforced composites and the corresponding 2D mesh model under different torsion process parameters; the torsion process parameters include: tungsten wire diameter, torsion angle, torsion ratio and infiltration process;

[0010] Obtain test specimens of different regions of the clustered tungsten wire reinforced composite and 2D mesh models of the corresponding regions;

[0011] The Split Hopkinson Pressure Bar (SHPB) test was used to perform uniaxial dynamic compression on the test specimens to obtain the uniaxial compression stress-strain curves of the corresponding areas.

[0012] According to the uniaxial compression stress-strain curve of the test sample and the 2D mesh model of the corresponding area, the SHPB simulation is performed using the ANSYS / LS-DYNA solver to determine the constitutive parameters of the bundled tungsten wire reinforced composite under the corresponding torsion process parameters; the constitutive parameters include: elastic modulus and shear modulus;

[0013] According to the 2D mesh model and corresponding constitutive parameters of the clustered tungsten wire reinforced composite, the finite element simulation of the composite projectile penetrating the target plate was carried out using the ANSYS / LS-DYNA solver to determine the penetration depth of the clustered tungsten wire reinforced composite.

[0014] Optionally, obtaining the clustered tungsten wire reinforced composite material and the corresponding 2D mesh model under different torsion process parameters specifically includes:

[0015] Obtain the torsion process parameters of clustered tungsten wire reinforced composites;

[0016] According to the twisting process parameters, the tungsten fiber bundle is twisted by a twisting machine;

[0017] According to the twisting process parameters, the twisted tungsten fiber bundle is infiltrated using a hydrogen sintering furnace to determine the bundled tungsten wire reinforced composite;

[0018] The two-dimensional image of the bundled tungsten wire reinforced composite material is determined by scanning method;

[0019] A 2D mesh model of the clustered tungsten wire reinforced composite is established based on the 2D image.

[0020] Optionally, obtaining test specimens of different regions of the clustered tungsten wire reinforced composite material and 2D mesh models of corresponding regions specifically includes:

[0021] Using a scanning method, a two-dimensional image of the test sample is determined;

[0022] A 2D mesh model of the test sample is determined according to the 2D image of the test sample.

[0023] Optionally, the finite element simulation target plate is 45 steel.

[0024] A system for determining the penetration performance of a bundled tungsten wire reinforced composite material, comprising:

[0025] The module for acquiring clustered tungsten wire reinforced composites is used to acquire clustered tungsten wire reinforced composites and corresponding 2D mesh models under different torsion process parameters; the torsion process parameters include: tungsten wire diameter, torsion angle, torsion ratio and infiltration process;

[0026] A test sample acquisition module, used to obtain test samples of different areas of the clustered tungsten wire reinforced composite material and 2D mesh models of the corresponding areas;

[0027] A uniaxial compressive stress-strain curve determination module is used to perform uniaxial dynamic compression on the test specimen using a split Hopkinson pressure bar test SHPB to obtain a uniaxial compressive stress-strain curve of the corresponding area;

[0028] The constitutive parameter determination module is used to perform SHPB simulation using ANSYS / LS-DYNA solver according to the uniaxial compression stress-strain curve of the test sample and the 2D mesh model of the corresponding area, and determine the constitutive parameters of the clustered tungsten wire reinforced composite under the corresponding torsion process parameters; the constitutive parameters include: elastic modulus and shear modulus;

[0029] The penetration depth determination module is used to determine the penetration depth of the clustered tungsten wire reinforced composite material by performing finite element simulation of the composite projectile penetrating the target plate based on the 2D grid model and corresponding constitutive parameters of the clustered tungsten wire reinforced composite material using the ANSYS / LS-DYNA solver.

[0030] Optionally, the bundled tungsten wire reinforced composite material acquisition module specifically includes:

[0031] A torsion process parameter acquisition unit, used to acquire torsion process parameters of the bundled tungsten wire reinforced composite material;

[0032] A twisting unit, used for twisting the tungsten fiber bundle using a twisting machine according to twisting process parameters;

[0033] The infiltration unit is used to infiltrate the twisted tungsten fiber bundle using a hydrogen sintering furnace according to the twisting process parameters to determine the bundled tungsten wire reinforced composite material;

[0034] A first two-dimensional image determination unit is used to determine the two-dimensional image of the bundled tungsten wire reinforced composite material by a scanning method;

[0035] The first 2D grid model determination unit is used to establish a 2D grid model of the clustered tungsten wire reinforced composite material according to the two-dimensional image.

[0036] Optionally, the test sample acquisition module specifically includes:

[0037] A second two-dimensional image determining unit, used to determine a two-dimensional image of the test sample by a scanning method;

[0038] The second 2D grid model determining unit is used to determine the 2D grid model of the test sample according to the two-dimensional image of the test sample.

[0039] Optionally, the finite element simulation target plate is 45 steel.

[0040] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0041] The present invention provides a method and system for determining the penetration performance of a clustered tungsten wire reinforced composite material, which is implemented by combining SHPB with finite element simulation. The SHPB is used to perform uniaxial dynamic compression on test samples in different areas (central area and edge area) to obtain uniaxial compression stress-strain curves. The SHPB simulation is performed using the ANSYS / LS-DYNA solver to determine the constitutive parameters. Then, based on the 2D mesh model and corresponding constitutive parameters of the clustered tungsten wire reinforced composite material, the ANSYS / LS-DYNA solver is used to perform finite element simulation of the process of the composite projectile penetrating the target plate to determine the penetration depth of the clustered tungsten wire reinforced composite material. The penetration performance is quantitatively judged according to the penetration depth, that is, the larger the penetration depth, the higher the penetration performance. Finally, the torsion process parameters corresponding to the maximum penetration depth are used as the optimal process parameters of the clustered tungsten wire composite material, thereby promoting the application of the clustered tungsten wire composite material in related fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0043] Figure 1 Schematic diagram of different projectile cores penetrating the target plate;

[0044] Figure 2 A schematic flow chart of a method for determining the penetration performance of a bundled tungsten wire reinforced composite material provided by the present invention;

[0045] Figure 3A schematic diagram of the principle of a method for determining the penetration performance of a bundled tungsten wire reinforced composite material provided by the present invention;

[0046] Figure 4 Schematic diagram of the morphology of composite materials after penetration under different states;

[0047] Figure 5 It is a three-dimensional image of the bundled tungsten wire reinforced composite material and a schematic diagram of the sampling area;

[0048] Figure 6 is the true stress-strain curve of different regions under dynamic compression conditions;

[0049] Figure 7 The SEM images of the composite materials and the schematic diagram of dynamic compression simulation (a is the SEM image of the longitudinal section of the edge area; b is the SEM image of the fiber fracture surface; c and d are the dynamic compression equivalent plastic strain cloud diagrams);

[0050] Figure 8 This is a schematic diagram of the structure of a system for determining the penetration performance of a bundled tungsten wire reinforced composite material provided by the present invention. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] The object of the present invention is to provide a method and system for determining the penetration performance of a bundled tungsten wire reinforced composite material, which can determine the penetration performance of the bundled tungsten wire reinforced composite material.

[0053] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0054] The armor-piercing material should have a high adiabatic shear sensitivity so that the head remains sharp during the armor-piercing process. Figure 4 The post-penetration morphology of the bundled tungsten fiber composite in different states is displayed. It can be clearly observed that the warhead in the torsion state always keeps a sharp head during the penetration process and has good self-sharpening performance.

[0055] Figure 2 This is a schematic flow chart of a method for determining the penetration performance of a bundled tungsten wire reinforced composite material provided by the present invention. Figure 3 The schematic diagram of the principle of a method for determining the penetration performance of a bundled tungsten wire reinforced composite material provided by the present invention is as follows: Figure 2 and Figure 3 As shown, the present invention provides a method for determining the penetration performance of a bundled tungsten wire reinforced composite material, comprising:

[0056] S201, obtaining a clustered tungsten wire reinforced composite material and a corresponding 2D mesh model under different torsion process parameters; the torsion process parameters include: tungsten wire diameter, torsion angle, torsion ratio and infiltration process;

[0057] S201 specifically includes:

[0058] Obtain the torsion process parameters of clustered tungsten wire reinforced composites;

[0059] According to the twisting process parameters, the tungsten fiber bundle is twisted by a twisting machine;

[0060] According to the twisting process parameters, the twisted tungsten fiber bundle is infiltrated using a hydrogen sintering furnace to determine the bundled tungsten wire reinforced composite;

[0061] The two-dimensional image of the bundled tungsten wire reinforced composite material is determined by scanning method;

[0062] A 2D mesh model of the clustered tungsten wire reinforced composite is established based on the 2D image.

[0063] S202, obtaining test specimens of different regions of the clustered tungsten wire reinforced composite material and 2D mesh models of the corresponding regions;

[0064] S202 specifically includes:

[0065] Using a scanning method, a two-dimensional image of the test sample is determined;

[0066] A 2D mesh model of the test sample is determined according to the 2D image of the test sample.

[0067] S203, using the split Hopkinson pressure bar test SHPB to perform uniaxial dynamic compression on the test specimen, and obtain the uniaxial compression stress-strain curve of the corresponding area;

[0068] S204, performing SHPB simulation using ANSYS / LS-DYNA solver according to the uniaxial compression stress-strain curve of the test sample and the 2D mesh model of the corresponding area, and determining constitutive parameters of the bundled tungsten wire reinforced composite under the corresponding torsion process parameters; the constitutive parameters include: elastic modulus and shear modulus;

[0069] S205, based on the 2D mesh model and corresponding constitutive parameters of the clustered tungsten wire reinforced composite, the ANSYS / LS-DYNA solver is used to perform finite element simulation of the composite projectile penetrating the target plate to determine the penetration depth of the clustered tungsten wire reinforced composite. The finite element simulation target plate is 45 steel.

[0070] As a specific embodiment, the present invention firstly uses SHPB to perform uniaxial dynamic compression tests on test specimens in different regions (central region and edge region), and samples are taken from the central region and the edge region for testing respectively. Figure 5 The three-dimensional image and sampling area of ​​the bundled tungsten wire reinforced composite are displayed. After the test, the uniaxial compression stress-strain curves of different areas of the bundled fiber are obtained. Figure 6 In order to reverse the true stress-strain curve of different parts of the tungsten fiber reinforced copper-zinc composite material under dynamic compression (2000s-1), the fracture strain at the center of the composite material is about 4 times that at the edge, and the strength and plasticity are also higher than those at the edge, with better comprehensive performance. In order to better understand the fracture behavior and dynamic compression process, finite element simulation of the bundled tungsten fiber composite is carried out. Figure 7 As shown in a, cracks can be observed in the edge area, and the fracture surface of the edge area ( Figure 7 b) Inclined to the fiber length direction, it is obviously affected by shear stress. The finite element simulation results also show that a larger plastic strain zone will appear at the edge than in the center, and shear fracture is more likely to occur. Next, the original data of materials in different regions obtained from the experiment are integrated with key parameters, and a complete constitutive model of tungsten wire reinforced composite projectile is constructed. Then, the constitutive parameters and projectile model are combined to perform SHPB simulation and self-consistently fit the unknown parameters in the model. Finally, a two-dimensional image of the projectile sample is obtained based on scanning and other test methods, and a 2D mesh model of a clustered tungsten wire reinforced projectile is established. The finite element simulation of the composite projectile penetrating the target plate is performed using the ANSYS / LS-DYNA solver to obtain the penetration simulation results under different conditions, thereby achieving the purpose of predicting the performance of clustered tungsten wire reinforced composites.

[0071] The method for predicting the penetration performance of clustered tungsten wire reinforced composites established in the present invention can perform simulations under different experimental conditions and process parameters, clearly observe the influence of different torsion processes on the penetration performance of clustered tungsten wire reinforced composites, and ultimately achieve the purpose of optimizing the process parameters and promote the application of clustered tungsten wire composites in related fields.

[0072] Figure 8 This is a schematic diagram of the structure of a system for determining the penetration performance of a bundled tungsten wire reinforced composite material provided by the present invention. Figure 8 As shown, the present invention provides a system for determining the penetration performance of a bundled tungsten wire reinforced composite material, comprising:

[0073] The bundled tungsten wire reinforced composite material acquisition module 801 is used to obtain the bundled tungsten wire reinforced composite material and the corresponding 2D mesh model under different torsion process parameters; the torsion process parameters include: tungsten wire diameter, torsion angle, torsion ratio and infiltration process;

[0074] The test sample acquisition module 802 is used to acquire test samples of different regions of the clustered tungsten wire reinforced composite material and 2D mesh models of the corresponding regions;

[0075] A uniaxial compressive stress-strain curve determination module 803 is used to perform uniaxial dynamic compression on the test sample using a split Hopkinson pressure bar test SHPB to obtain a uniaxial compressive stress-strain curve of a corresponding area;

[0076] The constitutive parameter determination module 804 is used to perform SHPB simulation using ANSYS / LS-DYNA solver according to the uniaxial compression stress-strain curve of the test sample and the 2D mesh model of the corresponding area, and determine the constitutive parameters of the bundled tungsten wire reinforced composite under the corresponding torsion process parameters; the constitutive parameters include: elastic modulus and shear modulus;

[0077] The penetration depth determination module 805 is used to perform finite element simulation of the composite projectile penetrating the target plate according to the 2D mesh model and corresponding constitutive parameters of the clustered tungsten wire reinforced composite material using the ANSYS / LS-DYNA solver to determine the penetration depth of the clustered tungsten wire reinforced composite material. The target plate of the finite element simulation is 45 steel.

[0078] The bundled tungsten wire reinforced composite material acquisition module 801 specifically includes:

[0079] A torsion process parameter acquisition unit, used to acquire torsion process parameters of the bundled tungsten wire reinforced composite material;

[0080] A twisting unit, used for twisting the tungsten fiber bundle using a twisting machine according to twisting process parameters;

[0081] The infiltration unit is used to infiltrate the twisted tungsten fiber bundle using a hydrogen sintering furnace according to the twisting process parameters to determine the bundled tungsten wire reinforced composite material;

[0082] A first two-dimensional image determination unit is used to determine the two-dimensional image of the bundled tungsten wire reinforced composite material by a scanning method;

[0083] The first 2D grid model determination unit is used to establish a 2D grid model of the clustered tungsten wire reinforced composite material according to the two-dimensional image.

[0084] The test sample acquisition module 802 specifically includes:

[0085] A second two-dimensional image determining unit, used to determine a two-dimensional image of the test sample by a scanning method;

[0086] The second 2D grid model determining unit is used to determine the 2D grid model of the test sample according to the two-dimensional image of the test sample.

[0087] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0088] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A method for determining the penetration performance of a bundled tungsten wire reinforced composite material, characterized in that: include: Obtain the clustered tungsten wire reinforced composites and the corresponding 2D mesh models under different torsion process parameters; The torsion process parameters include: tungsten wire diameter, torsion angle, torsion ratio and infiltration process; Obtain test specimens of different regions of the clustered tungsten wire reinforced composite and 2D mesh models of the corresponding regions; The split Hopkinson pressure bar test (SHPB) was used to perform uniaxial dynamic compression on the test specimen, and the uniaxial compression stress-strain curve of the corresponding area was obtained. According to the uniaxial compression stress-strain curve of the test specimen and the 2D mesh model of the corresponding area, the SHPB simulation was performed using the ANSYS / LS-DYNA solver to determine the constitutive parameters of the bundled tungsten wire reinforced composite under the corresponding torsion process parameters; the constitutive parameters include: elastic modulus and shear modulus; According to the 2D mesh model and corresponding constitutive parameters of the clustered tungsten wire reinforced composite, the finite element simulation of the composite projectile penetrating the target plate was carried out using the ANSYS / LS-DYNA solver to determine the penetration depth of the clustered tungsten wire reinforced composite.

2. The method for determining the penetration performance of a bundled tungsten wire reinforced composite material according to claim 1, characterized in that: The obtaining of the clustered tungsten wire reinforced composite material and the corresponding 2D mesh model under different torsion process parameters specifically includes: Obtain the torsion process parameters of clustered tungsten wire reinforced composites; According to the twisting process parameters, the tungsten fiber bundle is twisted by a twisting machine; According to the twisting process parameters, the twisted tungsten fiber bundle is infiltrated using a hydrogen sintering furnace to determine the bundled tungsten wire reinforced composite; The two-dimensional image of the bundled tungsten wire reinforced composite material is determined by scanning method; A 2D mesh model of the clustered tungsten wire reinforced composite is established based on the 2D image.

3. The method for determining the penetration performance of a bundled tungsten wire reinforced composite material according to claim 1, characterized in that: The obtaining of test specimens of different regions of the clustered tungsten wire reinforced composite material and 2D mesh models of the corresponding regions specifically includes: Using a scanning method, a two-dimensional image of the test sample is determined; A 2D mesh model of the test sample is determined according to the 2D image of the test sample.

4. The method for determining the penetration performance of a bundled tungsten wire reinforced composite material according to claim 1, characterized in that: The target plate for finite element simulation is 45 steel.

5. A system for determining the penetration performance of a bundled tungsten wire reinforced composite material, characterized in that: include: The clustered tungsten wire reinforced composite material acquisition module is used to obtain the clustered tungsten wire reinforced composite materials and the corresponding 2D mesh models under different torsion process parameters; The torsion process parameters include: tungsten wire diameter, torsion angle, torsion ratio and infiltration process; A test sample acquisition module, used to obtain test samples of different areas of the clustered tungsten wire reinforced composite material and 2D mesh models of the corresponding areas; A uniaxial compressive stress-strain curve determination module is used to perform uniaxial dynamic compression on the test specimen using a split Hopkinson pressure bar test SHPB to obtain a uniaxial compressive stress-strain curve of the corresponding area; The constitutive parameter determination module is used to perform SHPB simulation using the ANSYS / LS-DYNA solver according to the uniaxial compression stress-strain curve of the test specimen and the 2D mesh model of the corresponding area, and determine the constitutive parameters of the clustered tungsten wire reinforced composite under the corresponding torsion process parameters; the constitutive parameters include: elastic modulus and shear modulus; The penetration depth determination module is used to determine the penetration depth of the clustered tungsten wire reinforced composite material by performing finite element simulation of the composite projectile penetrating the target plate based on the 2D grid model and corresponding constitutive parameters of the clustered tungsten wire reinforced composite material using the ANSYS / LS-DYNA solver.

6. The penetration performance determination system of a clustered tungsten wire reinforced composite material according to claim 5, characterized in that: The bundled tungsten wire reinforced composite material acquisition module specifically includes: A torsion process parameter acquisition unit, used to acquire torsion process parameters of the bundled tungsten wire reinforced composite material; A twisting unit, used for twisting the tungsten fiber bundle using a twisting machine according to twisting process parameters; The infiltration unit is used to infiltrate the twisted tungsten fiber bundle using a hydrogen sintering furnace according to the twisting process parameters to determine the bundled tungsten wire reinforced composite material; A first two-dimensional image determination unit is used to determine the two-dimensional image of the bundled tungsten wire reinforced composite material by a scanning method; The first 2D grid model determination unit is used to establish a 2D grid model of the clustered tungsten wire reinforced composite material according to the two-dimensional image.

7. The penetration performance determination system of a bundled tungsten wire reinforced composite material according to claim 5, characterized in that: The test sample acquisition module specifically includes: A second two-dimensional image determining unit, used to determine a two-dimensional image of the test sample by a scanning method; The second 2D grid model determining unit is used to determine the 2D grid model of the test sample according to the two-dimensional image of the test sample.

8. The penetration performance determination system of a bundled tungsten wire reinforced composite material according to claim 5, characterized in that: The target plate for finite element simulation is 45 steel.

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