Method for determining service life of bulletproof steel plate

A simulation calculation, bulletproof steel plate technology, applied in the direction of calculation, computer-aided design, design optimization/simulation, etc., can solve problems such as insufficient impact life research, and achieve the effect of simple and easy-to-understand display results, high cost-effectiveness, and convenient use.

Active Publication Date: 2020-01-14
NANJING RES INST ON SIMULATION TECHN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to address the insufficient research on the existing evaluation of bullet-proof steel plate impact life by bullets, and proposes a method for calculating the bullet-proof steel plate life, so as to realize the evaluation and evaluation of the damage of bullet-proof steel plates of different specifications under bullet impact. Prediction of service life of bulletproof steel plate

Method used

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  • Method for determining service life of bulletproof steel plate
  • Method for determining service life of bulletproof steel plate
  • Method for determining service life of bulletproof steel plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Calculate the service life of bulletproof steel plate

[0068] Such as image 3 As shown, the Nth (initial value is 1) shooting is carried out, and it is judged whether the failure thickness at the bullet impact point meets the failure thickness criterion after shooting. If the failure thickness criterion is not satisfied, it is judged whether the shooting times threshold is reached. The criterion is to judge whether the current failure area of ​​the bulletproof steel plate satisfies the failure area criterion; if the failure area criterion is not satisfied, it is judged whether the shooting times threshold is reached, and if the failure area criterion is met, the life of the bulletproof steel plate is output N times and the calculation ends; If the shooting times threshold is reached, a warning message will pop up and the calculation will end. If the shooting times threshold is not reached, the N+1th shooting will be performed.

Embodiment 2

[0070] Calculation of damage to bulletproof steel plates

[0071] Such as Figure 4 As shown, first iterate the number of shots to the set number of shots, and then output the failure thickness at each feature point of the bulletproof steel plate, and output the total failure area of ​​the bulletproof steel plate according to the failure thickness criterion, and judge whether the failure area criterion is satisfied. The failure area criterion judges that the bulletproof steel plate is invalid and ends the calculation. If the failure area criterion is not satisfied, it is judged that the bulletproof steel plate has not failed and the calculation ends.

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Abstract

The invention relates to a method for determining the service life of a bulletproof steel plate, in particular to a method for calculating the service life of the bulletproof steel plate by using a computer. The invention discloses a bulletproof steel plate service life simulation calculation method. The method comprises: inputting shooting parameters of a bulletproof steel plate into simulation calculation equipment; calculating the service life of the bulletproof steel plate under the failure judgment criterion of the bulletproof steel plate; or calculating the damage condition of the bulletproof steel plate according to the set shooting times. The method specifically comprises the following steps: step 1, setting parameters; starting simulation calculation equipment, and inputting shooting parameters for calculating the service life of the bulletproof steel plate into the simulation calculation equipment; 2, calculating a program, wherein the calculation program in the step 2 is used for calculating the service life of the bulletproof steel plate and providing a theoretical basis for bulletproof design of a target range, and the calculation program in the step 2 is used for calculating the service life of the bulletproof steel plate according to the calculation input parameters in the step 1.

Description

technical field [0001] The invention relates to a life simulation calculation method of a bulletproof steel plate, which relates to a method for determining the life of the bulletproof steel plate, specifically a method for calculating the life of the bulletproof steel plate by using a computer. Background technique [0002] The bulletproof steel plate is an important part of the bulletproof device of the shooting range, and the safety and reliability of the bulletproof design of the shooting range has always been one of the important technical issues that the shooting range design needs to face. If the protection cannot be effectively designed, it will directly affect the use of the shooting range, and even endanger the safety of work or training personnel; but at present, there is no specific research on the service life of bulletproof steel plates, and the calculation of its service life is often based on personnel experience. Estimation, there is a large uncertainty, so ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F119/04G06F111/10
Inventor 马治国王德鑫庄震宇朱高贵姜年朝杨国平陈辉
Owner NANJING RES INST ON SIMULATION TECHN
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