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| Storage Life Assessment of Certain Missile Warhead Charge |
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| DOI：10.7643/issn.1672-9242.2023.01.003 |
| KeyWord:missile warhead charge explosive storage life life assessment |
| Author | Institution |
| GUO Hua |
Beijing Aeronautical Technology Research Center, Nanjing , China |
| ZHU Feng-chun |
Beijing Aeronautical Technology Research Center, Nanjing , China |
| ZHU Xiao-ping |
Beijing Aeronautical Technology Research Center, Nanjing , China |
| ZHANG Meng-yue |
Beijing Aeronautical Technology Research Center, Nanjing , China |
| ZHAI Shu-feng |
Beijing Aeronautical Technology Research Center, Nanjing , China |
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| Abstract: |
| The work aims to study the evaluation of charge storage life based on the constant stress accelerated life test data of certain missile warhead charge. The accelerated aging data of the charge samples at 61 ℃, 71 ℃ and 81 ℃ were used to evaluate the storage life of the charge based on the critical weight loss rate of the sample. Five models including the square root model, the linear model, the inverse Weibull model, the power function model and the power model were chosen to fit the weight loss data of charge according to the characteristics of accelerated life test data. The rational distribution function was determined combining the goodness of fit and the engineering practice, so as to assess the storage life of the warhead charge. A calculation program was prepared to process the accelerated life test data of certain missile warhead charge. The power model (0.9 square, near-linear) was considered optimum by the goodness of fit and the engineering practice. The assessed storage life of the charge was 22 years. It is concluded that the storage life of certain missile warhead charge conforms to the newly introduced near-linear model, which is better than the square root model and the linear model. |
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