A method, device and equipment for judging collision performance of material protection structure

Abstract

The present invention provides a method, device and equipment for judging the collision performance of a material protection structure, which includes: establishing a specific material model of the target material according to the stress-strain curve of a target material sample under various temperature and humidity conditions, wherein the specific material model is configured so that the target material meets the basic performance requirements under a preset temperature and humidity range; obtaining a target structure that needs to be formed by the target material; and performing a collision simulation based on the target structure and the specific material model to determine whether the target structure meets the collision performance requirements. When performing a collision simulation in combination with the specific material model and the target structure required by the technician, it can be determined whether the target structure using the target material can meet the collision performance requirements under different temperature and humidity conditions in multiple regions, without the need to repeat the test for the target material under different temperature and humidity conditions based on the target structure, thereby simplifying the test process of the target material and the target structure and reducing the difficulty and cost.

Description

Technical Field

[0001] The present invention relates to the field of vehicle protection structures, and in particular to a method, device and equipment for judging the collision performance of a material protection structure. Background Art

[0002] The mechanical properties of composite materials are usually not as stable as those of metal materials. The same mechanical parameters of products from different batches vary greatly, and the same mechanical parameters also vary greatly with changes in temperature and humidity. In addition, unlike metal materials, the elastic modulus and failure strain values ​​of composite materials under tension, compression, shear, plane tension, and biaxial tension are also different, which brings many problems to design, simulation and application.

[0003] With the large-scale application of composite materials in the field of automobile collision, the conventional single performance judgment process: material test-material simulation benchmark-component simulation-component test benchmark, to judge the collision performance of components, can no longer meet the requirements. Because the GB 26511 commercial vehicle front lower protection requirements are not affected by regions and seasons, once a new protection structure is developed, each batch of materials needs to be tested separately for different regions, which is difficult and expensive and needs further improvement. Summary of the invention

[0004] The main purpose of the present invention is to provide a method, device, equipment and readable storage medium for judging the collision performance of a material protective structure, aiming to solve the problem of difficulty and high cost in the development and testing of new protective structures in the prior art.

[0005] In a first aspect, the present invention provides a method for judging the collision performance of a material protection structure, which adopts the following technical solution:

[0006] A method for judging the collision performance of a material protection structure, comprising:

[0007] Establishing a specific material model of the target material according to stress-strain curves of target material samples under various temperature and humidity conditions, wherein the specific material model is configured so that the target material meets basic performance requirements under a preset temperature and humidity range;

[0008] Obtain the target structure required to be formed by the target material;

[0009] A collision simulation is performed according to the target structure and the specific material model to determine whether the target structure meets the collision performance requirements.

[0010] In some embodiments, establishing a specific material model of the target material according to stress-strain curves of multiple target material samples under multiple temperature and humidity conditions includes the following steps:

[0011] Obtaining the stress-strain curve of the target material sample under the same temperature and humidity, and obtaining the constitutive model of the target material according to the obtained stress-strain curve;

[0012] Obtaining multiple stress-strain curves corresponding to a target material sample at multiple temperatures and humidities within a preset temperature and humidity range, and obtaining basic performance parameter value points corresponding to the target material at multiple temperatures and humidities within the preset temperature and humidity range according to the obtained multiple stress-strain curves;

[0013] The constitutive model is modified according to a plurality of basic performance parameter value points to obtain a specific material model of the target material.

[0014] In some embodiments, the constitutive model is modified according to the performance parameter value points of the target material at multiple temperatures and humidities according to the multiple basic performance parameter value points, including:

[0015] Obtaining a correction curve according to a plurality of basic performance parameter value points;

[0016] The constitutive model is corrected according to the correction curve to obtain a specific material model of the target material.

[0017] In some embodiments, the basic performance parameter value point is the lowest value of the passing ratio of the multiple stress-strain curves corresponding to the target material sample at multiple temperatures and humidities within a preset temperature and humidity range under the same strain.

[0018] In some embodiments, the set passing ratio is 90%.

[0019] In some embodiments, obtaining the stress-strain curve of the target material sample under the same temperature and humidity, and obtaining the constitutive model of the target material according to the obtained stress-strain curve, comprises the following steps:

[0020] According to the stress-strain curves of multiple target material samples under the same temperature and humidity, an initial constitutive model of the target material is established;

[0021] Performing material benchmarking verification on the initial constitutive model;

[0022] If the material benchmarking verification passes, the initial constitutive model is subjected to structural benchmarking verification. If the structural benchmarking verification passes, the initial constitutive model is confirmed to be a constitutive model.

[0023] In some embodiments, the material benchmarking verification includes:

[0024] Performing performance simulation tests on the initial constitutive model and standard material test specimens;

[0025] Obtain the performance test results of standard material test specimens using the target material;

[0026] Whether the material benchmarking verification has passed is determined based on the performance simulation test and the performance measurement results.

[0027] In some embodiments, the structural benchmarking verification includes:

[0028] Performing performance simulation tests on the initial constitutive model and the preset structural model;

[0029] Obtaining actual measured performance results of a structural sample using the target material and the structural model;

[0030] Whether the structure benchmarking verification has passed is determined based on the performance simulation test and the performance measurement results.

[0031] In a second aspect, the present invention also provides a device for judging the collision performance of a material protection structure.

[0032] A device for judging collision performance of a material protection structure, comprising:

[0033] A calculation module, which is configured to establish a specific material model of the target material according to the stress-strain curves of the target material sample under various temperature and humidity conditions, wherein the specific material model is configured so that the target material meets basic performance requirements under a preset temperature and humidity range;

[0034] A simulation test module, which is configured to obtain a target structure that needs to be formed by a target material, and perform collision simulation according to the target structure and the specific material model;

[0035] A judgment module is configured to judge whether the target structure meets the collision performance requirements.

[0036] In a third aspect, the present invention also provides a device for judging the collision performance of a material protection structure.

[0037] A device for judging the collision performance of a material protection structure, the device comprising a processor, a memory, and a material protection structure collision performance judgment program stored in the memory and executable by the processor, wherein when the material protection structure collision performance judgment program is executed by the processor, the steps of the material protection structure collision performance judgment method as described above are implemented.

[0038] The present invention provides a method, device and equipment for judging the collision performance of a material protection structure. By first establishing a specific material model, the specific material model is configured to reflect the basic performance that the target material can meet under different temperature and humidity conditions in multiple regions. Then, when the collision simulation is performed in combination with the specific material model and the target structure required by the technician, it can be judged whether the target structure using the target material can meet the collision performance requirements under different temperature and humidity conditions in multiple regions. There is no need to repeat the test on the target material under different temperature and humidity conditions based on the target structure, which greatly simplifies the test process of the target material and the target structure and reduces the difficulty and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of the hardware structure of a device for judging the collision performance of a material protection structure involved in an embodiment of the present invention;

[0040] Figure 2 It is a schematic flow chart of a first embodiment of a method for judging the collision performance of a material protection structure of the present invention;

[0041] Figure 3 This is a schematic diagram of the functional modules of the first embodiment of the device for judging the collision performance of a material protection structure of the present invention.

[0042] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0044] The mechanical properties of composite materials are usually not as stable as those of metal materials. The same mechanical parameters of products from different batches vary greatly, and with the changes in temperature and humidity, the performance of the same mechanical parameters also varies greatly. In addition, unlike metal materials, the elastic modulus and failure strain value of composite materials under tension, compression, shear, planar tension, and biaxial tension are also different, which brings many problems to design, simulation and application. With the large-scale application of composite materials in the field of automobile collision, the method of judging the collision performance of components using the conventional single performance judgment process: material test-material simulation benchmarking-component simulation-component test benchmarking can no longer meet the requirements. Because the GB 26511 commercial vehicle front lower protection requirements regulations are not affected by regions and seasons, once a new protection structure is developed, each batch of materials needs to be tested separately for different regions, which is difficult and expensive and needs further improvement. The embodiments of the present application provide a method, device and equipment for judging the collision performance of a material protection structure to solve the above problems.

[0045] The present application provides a method, device and equipment for judging the collision performance of a material protection structure. The key point of the invention is that a specific material model is first established, and the specific material model is configured to reflect the basic performance that the target material can meet under different temperature and humidity conditions in multiple regions. Then, when the collision simulation is performed in combination with the specific material model and the target structure required by the technician, it can be judged whether the target structure using the target material can meet the collision performance requirements under different temperature and humidity conditions in multiple regions. There is no need to repeat the test on the target material under different temperature and humidity conditions based on the target structure, which greatly simplifies the test process of the target material and the target structure, and reduces the difficulty and cost.

[0046] In a first aspect, an embodiment of the present invention provides a device for judging the collision performance of a material protection structure. The device for judging the collision performance of a material protection structure may be a personal computer (PC), a laptop computer, a server, or other device having a data processing function.

[0047] Reference Figure 1 , Figure 1 Schematic diagram of the hardware structure of the material protection structure collision performance judgment device involved in the embodiment of the present invention. In the embodiment of the present invention, the material protection structure collision performance judgment device may include a processor 1001 (such as a central processing unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components; the user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard); the network interface 1004 may optionally include a standard wired interface, a wireless interface (such as wireless fidelity WIreless-FIdelity, WI-FI interface); the memory 1005 may be a high-speed random access memory (random access memory, RAM), or a stable memory (non-volatile memory), such as a disk storage, and the memory 1005 may optionally be a storage device independent of the aforementioned processor 1001. Those skilled in the art will understand that Figure 1 The hardware structure shown in the figure does not constitute a limitation of the present invention, and may include more or less components than those shown in the figure, or combine certain components, or arrange the components differently.

[0048] Continue to refer to Figure 1 , Figure 1The memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a material protection structure collision performance judgment program. The processor 1001 may call the material protection structure collision performance judgment program stored in the memory 1005 and execute the material protection structure collision performance judgment method provided in the embodiment of the present invention.

[0049] In a second aspect, an embodiment of the present invention provides a method for determining the collision performance of a material protection structure.

[0050] Reference Figure 2 , a method for judging the collision performance of a material protection structure, comprising:

[0051] S100, establishing a specific material model of the target material according to stress-strain curves of target material samples under various temperature and humidity conditions, wherein the specific material model is configured so that the target material meets basic performance requirements under a preset temperature and humidity range;

[0052] S200, obtaining a target structure to be formed by a target material;

[0053] S300: performing collision simulation according to the target structure and the specific material model to determine whether the target structure meets collision performance requirements.

[0054] Among them, the stress-strain curve obtained in step S100 includes the corresponding curves obtained by performing tension, compression, shear, plane strain, and biaxial tension tests on the target material at different temperatures, and a specific material model that can reflect the above test performance is established, so that the specific material model obtained in this application can reflect the structural performance of the target material reflected by the above multiple tests under various temperature and humidity conditions, thereby improving the effectiveness and accuracy of this specific material model.

[0055] After determining whether the target structure meets the collision performance requirements in step S300, it is possible to choose whether to directly put it into production or adjust the target structure again according to the result, so as to finally achieve that the target structure meets the collision performance requirements when the target material is used.

[0056] In this way, by first establishing a specific material model, the specific material model is configured to reflect the basic performance that the target material can meet under different temperature and humidity conditions in multiple regions. Then, when the collision simulation is performed in combination with the specific material model and the target structure required by the technician, it can be determined whether the target structure using the target material can meet the collision performance requirements under different temperature and humidity conditions in multiple regions. There is no need to repeatedly test the target material under different temperature and humidity conditions based on the target structure, which greatly simplifies the test process of the target material and the target structure, and reduces the difficulty and cost.

[0057] Furthermore, the step S100, based on the stress-strain curves of multiple target material samples under multiple temperature and humidity conditions, establishes a specific material model of the target material, including the following steps:

[0058] S110, obtaining a stress-strain curve of a target material sample under the same temperature and humidity, and obtaining a constitutive model of the target material according to the obtained stress-strain curve;

[0059] S120, obtaining a plurality of stress-strain curves corresponding to a target material sample at a plurality of temperatures and humidities within a preset temperature and humidity range, and obtaining basic performance parameter value points corresponding to the target material at a plurality of temperatures and humidities within the preset temperature and humidity range according to the obtained plurality of stress-strain curves;

[0060] S130, modifying the constitutive model according to the multiple basic performance parameter value points to obtain a specific material model of the target material.

[0061] Among them, in step S110, since the stress-strain curve includes the corresponding curves obtained by tensile, compression, shear, plane strain, and biaxial tensile tests of the target material at different temperatures, it breaks through the conventional single curve, and establishes a constitutive model that conforms to the specific material according to different material test characteristics (the self-created constitutive model will be adjusted according to the characteristics of the test curves of different materials in the same batch, and there is no unified form; it includes constitutive model equations, curve slopes, turning points, curvatures, fracture forms, fracture curve parameters, fracture strain values, softening strain values, stress-strain curve trend parameters under triaxial coordinates, etc.), and obtaining the constitutive model in step S110 is a process of continuous adjustment until the constitutive model is fully consistent with the offline performance measurements of the target material.

[0062] In step S120, by obtaining a plurality of stress-strain curves corresponding to the target material sample at a plurality of temperatures and humidities within a preset temperature and humidity range, the mechanical properties of the target material under all statistical conditions are accurately located.

[0063] In addition, it should also be noted that the target materials used in S110 and S120 also have the difference between the same batch and different batches. The same batch is taken in S110 in order to keep the production equipment factors of the target materials in the batch used consistent, so as to establish a more accurate constitutive model. S120 takes target materials from different batches of different equipment in different regions and different environments, so as to fully collect and statistically analyze the impact of various influencing factors on the performance of the target materials, such as equipment factors. The purpose is to prepare for the basic performance parameter value points in S120. At the same time, S120 is the core of the entire process of this application. It is derived through complex statistical theories, reliability theories, numerical analysis theories, etc., to form a general calculation formula, which is decomposed to form each detailed calculation formula and calculation process. Through this formula or process, the mechanical properties of the material in all statistical situations can be accurately located, specifically.

[0064] Finally, step S130 combines step S110 with step S120, determines the precise constitutive model (such as the order of tension, compression, shear, etc., turning points, concave and convex forms, etc.) through step S110, and determines the final positioning parameters through step S120, so as to obtain a specific material model that can determine the material properties of the target material under various temperatures and humidities.

[0065] Furthermore, step S120, modifying the constitutive model according to the performance parameter value points of the target material at multiple temperatures and humidities at the multiple basic performance parameter value points, includes:

[0066] S121, obtaining a correction curve according to a plurality of basic performance parameter value points;

[0067] S122. Correct the constitutive model according to the correction curve to obtain a specific material model of the target material.

[0068] Furthermore, the basic performance parameter value point is the lowest value of the set passing ratio of the multiple stress-strain curves corresponding to the target material sample at multiple temperatures and humidities within the preset temperature and humidity range under the same strain. Specifically, at this strain value, the stress value corresponding to each curve is greater than the proportion of the number of value points of the determined basic performance parameter value point.

[0069] And in this embodiment, the setting passing ratio is 90%.

[0070] Specifically, step S121 in this embodiment specifically includes the following steps:

[0071] F1. Take the points with the same strain value on different stress-strain curves as a group;

[0072] F2. Sort the stress-strain curves under the strain value from small to large, record the sequence number as i, and the total number of samples N is the number of stress-strain curves;

[0073] F3. Calculate the median outlier value P by formula 1;

[0074] F4. Substitute each median anomaly value P and stress value into Formula 2 and Formula 3 to calculate the Y value and X value of each point;

[0075] F5. Express the X and Y values ​​with a straight line variance of 4, and use the least squares method to find the B and A values;

[0076] F6. Calculate the β value and η value by using formula 5 and formula 6;

[0077] F7, Substitute the β value and η value into Formula 7 to obtain the exact function of F(t);

[0078] F8, B10 (assigned a value of 0.1, i.e., the passing ratio is set to 90%) is substituted into F(t) in formula 7, and the t value is obtained to obtain the B10 point of each group of data. The abscissa of the B10 point is the strain value of the corresponding group, and the ordinate is the t value;

[0079] F9. Use the same method to obtain the t value coordinate points of each group under other strain values, and connect them into a curve to form a correction curve;

[0080] In the above steps, the formulas 1-7 used are:

[0081] Formula 1:

[0082] Formula 2:

[0083] Formula 3: X=ln(t)

[0084] Formula 4: Y=BX+A

[0085] Formula 5: B = β

[0086] Formula 6: A=-βlnη

[0087] Formula 7:

[0088] Among them, the setting ratio is set to 90% in this embodiment, and the correction curve and specific material model can be finally realized. When performing collision simulation of the target structure, the obtained simulation result means that the target material can meet the simulation result within 90% of the preset temperature and humidity range, which can fully reflect the performance results that the target material can meet when used in most areas under the target structure. At the same time, in this embodiment, it is preferred to set the ratio to 90% instead of a higher ratio, which also avoids the influence of extreme values. For example, when the setting ratio is selected to be 95%, due to the low value point of the basic performance parameter, it is too difficult for the target structure itself to meet the collision simulation using the specific material model, and the target structure needs to be continuously adjusted and optimized, which increases the difficulty of the process. At the same time, in order to meet the performance requirements of the target structure, it is necessary to have higher requirements for the strength of the structure, resulting in greater material and design costs, and the significance in actual production is too low.

[0089] Further, step S110, obtaining a stress-strain curve of a target material sample under the same temperature and humidity, and obtaining a constitutive model of the target material according to the obtained stress-strain curve, comprises the following steps:

[0090] S111, establishing an initial constitutive model of the target material according to stress-strain curves of multiple target material samples at the same temperature and humidity;

[0091] S112, performing material benchmarking verification on the initial constitutive model;

[0092] S113. If the material benchmarking verification passes, perform structural benchmarking verification on the initial constitutive model. If the structural benchmarking verification passes, confirm that the initial constitutive model is a constitutive model.

[0093] Furthermore, the material benchmarking verification includes:

[0094] A1. Performing performance simulation tests on the initial constitutive model and standard material test specimens;

[0095] A2. Obtaining the performance measurement results of the standard material test sample using the target material; (the performance measurement results are obtained by the technicians by testing the standard material test sample using the target material offline)

[0096] A3. Determine whether the material benchmarking verification has passed based on the performance simulation test and the performance measurement results.

[0097] The structural benchmarking verification includes:

[0098] B1. Performing performance simulation tests on the initial constitutive model and the preset structural model; (It is understandable that although the structural model can be of different structures as needed, it must be a model with practical reference significance for automobile protective parts and is determined in advance by technical personnel)

[0099] B2. Obtaining the performance measurement results of the structural sample using the target material and the structural model; (the performance measurement results are obtained by the technicians testing the structural sample using the target material and the structural model offline)

[0100] B3. Determine whether the structure benchmarking verification has passed according to the performance simulation test and the performance measurement results.

[0101] With this setting, through two benchmarking judgments (material benchmarking and structure benchmarking), a constitutive model that can reflect the performance of the target material is obtained, which ensures the accuracy of the constitutive model. Subsequently, the specific material model can be established through the constitutive model and the correction curve.

[0102] In a third aspect, an embodiment of the present invention further provides a device for judging the collision performance of a material protection structure.

[0103] Reference Figure 3 , a schematic diagram of the functional modules of the first embodiment of the device for judging the collision performance of a material protection structure.

[0104] In this embodiment, the material protection structure collision performance judgment device includes:

[0105] A calculation module, which is configured to establish a specific material model of the target material according to the stress-strain curves of the target material sample under various temperature and humidity conditions, wherein the specific material model is configured so that the target material meets basic performance requirements under a preset temperature and humidity range;

[0106] A simulation test module, which is configured to obtain a target structure that needs to be formed by a target material, and perform collision simulation according to the target structure and the specific material model;

[0107] A judgment module is configured to judge whether the target structure meets the collision performance requirements.

[0108] Among them, the functional implementation of each module in the above-mentioned material protection structure collision performance judgment device corresponds to the various steps in the above-mentioned material protection structure collision performance judgment method embodiment, and its functions and implementation processes will not be repeated here one by one.

[0109] In a fourth aspect, an embodiment of the present invention further provides a readable storage medium.

[0110] The readable storage medium of the present invention stores a material protection structure collision performance judgment program, wherein when the material protection structure collision performance judgment program is executed by a processor, the steps of the material protection structure collision performance judgment method as described above are implemented.

[0111] Among them, the method implemented when the material protection structure collision performance judgment program is executed can refer to the various embodiments of the material protection structure collision performance judgment method of the present invention, and will not be repeated here.

[0112] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0113] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0114] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for a terminal device to execute the methods described in each embodiment of the present invention.

[0115] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for judging the collision performance of a material protection structure, It is characterized in that It includes: Establishing a specific material model of the target material according to stress-strain curves of target material samples under various temperature and humidity conditions, wherein the specific material model is configured so that the target material meets basic performance requirements under a preset temperature and humidity range; Obtain the target structure required to be formed by the target material; Perform collision simulation according to the target structure and the specific material model to determine whether the target structure meets the collision performance requirements; The method of establishing a specific material model of the target material according to the stress-strain curves of multiple target material samples under multiple temperature and humidity conditions comprises the following steps: Obtaining the stress-strain curve of the target material sample under the same temperature and humidity, and obtaining the constitutive model of the target material according to the obtained stress-strain curve; Acquire multiple stress-strain curves corresponding to a target material sample at multiple temperatures and humidities within a preset temperature and humidity range, and obtain basic performance parameter value points corresponding to the target material at multiple temperatures and humidities within the preset temperature and humidity range according to the obtained multiple stress-strain curves; the basic performance parameter value points are the lowest values ​​of the multiple stress-strain curves corresponding to the target material sample at multiple temperatures and humidities within the preset temperature and humidity range, with the same strain setting passing ratio; The constitutive model is modified according to a plurality of basic performance parameter value points to obtain a specific material model of the target material.

2. The method for judging the collision performance of a material protection structure according to claim 1, It is characterized in that The method of modifying the constitutive model according to the performance parameter value points of the target material at multiple temperatures and humidities at the multiple basic performance parameter value points includes: Obtaining a correction curve according to a plurality of basic performance parameter value points; The constitutive model is corrected according to the correction curve to obtain a specific material model of the target material.

3. The method for judging the collision performance of a material protection structure according to claim 1, It is characterized in that The setting pass rate is 90%.

4. The method for judging the collision performance of a material protection structure according to claim 1, It is characterized in that The step of obtaining a stress-strain curve of a target material sample under the same temperature and humidity, and obtaining a constitutive model of the target material according to the obtained stress-strain curve, comprises the following steps: According to the stress-strain curves of multiple target material samples under the same temperature and humidity, an initial constitutive model of the target material is established; Performing material benchmarking verification on the initial constitutive model; If the material benchmarking verification passes, the initial constitutive model is subjected to structural benchmarking verification. If the structural benchmarking verification passes, the initial constitutive model is confirmed to be a constitutive model.

5. The method for judging the collision performance of a material protection structure according to claim 4, It is characterized in that The material benchmarking verification includes: Performing performance simulation tests on the initial constitutive model and standard material test specimens; Obtain the performance test results of standard material test specimens using the target material; Whether the material benchmarking verification has passed is determined based on the performance simulation test and the performance measurement results.

6. The method for judging the collision performance of a material protection structure according to claim 4, It is characterized in that The structural benchmarking verification includes: Performing performance simulation tests on the initial constitutive model and the preset structural model; Obtaining actual measured performance results of a structural sample using the target material and the structural model; Whether the structure benchmarking verification has passed is determined based on the performance simulation test and the performance measurement results.

7. A device for judging the collision performance of a material protection structure, It is characterized in that It includes: A calculation module, which is configured to establish a specific material model of the target material according to the stress-strain curves of the target material sample under various temperature and humidity conditions, wherein the specific material model is configured so that the target material meets basic performance requirements under a preset temperature and humidity range; A simulation test module, which is configured to obtain a target structure that needs to be formed by a target material, and perform collision simulation according to the target structure and the specific material model; A judgment module, configured to judge whether the target structure meets the collision performance requirements; The calculation module, when establishing a specific material model of the target material according to the stress-strain curves of multiple target material samples under multiple temperature and humidity conditions, includes the following steps: Obtaining the stress-strain curve of the target material sample under the same temperature and humidity, and obtaining the constitutive model of the target material according to the obtained stress-strain curve; Acquire multiple stress-strain curves corresponding to a target material sample at multiple temperatures and humidities within a preset temperature and humidity range, and obtain basic performance parameter value points corresponding to the target material at multiple temperatures and humidities within the preset temperature and humidity range according to the obtained multiple stress-strain curves; the basic performance parameter value points are the lowest values ​​of the multiple stress-strain curves corresponding to the target material sample at multiple temperatures and humidities within the preset temperature and humidity range, with the same strain setting passing ratio; The constitutive model is modified according to a plurality of basic performance parameter value points to obtain a specific material model of the target material.

8. A device for judging the collision performance of material protection structures, It is characterized in that The material protection structure collision performance judgment device includes a processor, a memory, and a material protection structure collision performance judgment program stored in the memory and executable by the processor, wherein when the material protection structure collision performance judgment program is executed by the processor, the steps of the material protection structure collision performance judgment method as described in any one of claims 1 to 6 are implemented.

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