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| Low Cost and High Efficiency Slow Cook-off Test Method |
| Received:March 04, 2019 Revised:April 08, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2019.09.003 |
| KeyWord:slow cook-off three-stage heating program thermally stimulated response temperature |
| Author | Institution |
| LI Na |
North University of China, Taiyuan , China |
| LYU Chun-ling |
North University of China, Taiyuan , China |
| WANG Jie |
North University of China, Taiyuan , China |
| MA Chao |
North University of China, Taiyuan , China |
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| Abstract: |
| Objective To study the low cost and high efficiency slow cook-off test method. Methods The 1 ℃/min and 3.3 ℃/h heating program was taken as comparative tests to set several three-stage heating programs and carry out slow cook-off test on JBO-9013 and JH-14 explosives with a self-developed slow cook-off test device to obtain the response temperature and response grade of the samples under different heating programs. Results The response temperature of JBO-9013 was 243.1, 199.5, 199.8, 201.4, 193 ℃ respectively, and the response grades were all combustion reaction at the 1 ℃/min, 3.3 ℃/h, three-stage (100/150/193 ℃) heating programs. The response temperature of JH-14 was 211.0, 186.0, 191.7 ℃ respectively, and the response grades were all detonation reaction at the 1 ℃/min, 3.3 ℃/h, three-stage (100 ℃) heating programs. Conclusion The temperature program has an effect on the response temperature and violent degree of JBO-9013 and JH-14. The results of three-grades heating program is obviously closer to the 3.3 ℃/h heating program of MIL-STD-2105D and STANAG 4439 in terms of slow cook-off test results compared to the 1 ℃/min heating program of GJB8018-2013. Therefore the three-stage heating program test method can shorten the test time, improve the test efficiency and reduce the test cost. |
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