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DOI | 10.1016/j.dt.2020.06.026 |
Mitigation effects on the reflected overpressure of blast shock with water surrounding an explosive in a confined space | |
Xu, Hai-bin; Chen, Long-kui; Zhang, De-zhi; Zhang, Fang-ping; Shen, Zhao-wu; Liu, Wen-xiang; Huang, Sheng-hong | |
通讯作者 | Huang, SH (通讯作者),Univ Sci & Technol China, CAS Key Lab Mech Behav & Design Mat, Hefei 230026, Peoples R China. |
发表日期 | 2021 |
ISSN | 2214-9147 |
起始页码 | 1071 |
结束页码 | 1080 |
卷号 | 17期号:3 |
英文摘要 | The mitigation of blast shock with water has broad application prospects. Understanding the mitigation effects on the reflected overpressure of the explosion shock with water surrounding an explosive in a confined space is of great significance for military explosives safety applications. To estimate the effects of the parameters on the reflected overpressure of blasted shock wave, a series of experiments were carried out in confined containers with spherical explosives immersed in a certain thickness of water, and numerical simulations were conducted to explore the corresponding mechanisms. The results reveal that the reflected overpressure is abnormally aggravated at a small scaled distance. This aggravation is due to the high impulse of the bulk accelerated water shell converted from the explosion. With increasing scaled distance, the energy will be gradually dissipated. The mitigation effects will appear with the dispersed water phase front impacting at a larger scaled distance, except in the case of a dense water phase state. A critical scaled distance range of 0.7-0.8 m/kg(1/3) for effective mitigation was found. It is suggested that the scaled distance of space walls should be larger than the critical value for a certain water-to-explosive weight ratio range (5-20). (C) 2020 China Ordnance Society. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co. |
英文关键词 | Shock; Water mitigation; Scaled distance; Water-to-explosive weight ratio; Confined container |
语种 | 英语 |
WOS研究方向 | Engineering |
WOS类目 | Engineering, Multidisciplinary |
WOS记录号 | WOS:000645031300002 |
来源期刊 | DEFENCE TECHNOLOGY
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来源机构 | 中国科学院西北生态环境资源研究院 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/254042 |
作者单位 | [Xu, Hai-bin; Chen, Long-kui; Huang, Sheng-hong] Univ Sci & Technol China, CAS Key Lab Mech Behav & Design Mat, Hefei 230026, Peoples R China; [Xu, Hai-bin; Zhang, De-zhi; Zhang, Fang-ping; Shen, Zhao-wu; Liu, Wen-xiang] Northwest Inst Nucl Technol, Xian 710024, Shanxi, Peoples R China |
推荐引用方式 GB/T 7714 | Xu, Hai-bin,Chen, Long-kui,Zhang, De-zhi,et al. Mitigation effects on the reflected overpressure of blast shock with water surrounding an explosive in a confined space[J]. 中国科学院西北生态环境资源研究院,2021,17(3). |
APA | Xu, Hai-bin.,Chen, Long-kui.,Zhang, De-zhi.,Zhang, Fang-ping.,Shen, Zhao-wu.,...&Huang, Sheng-hong.(2021).Mitigation effects on the reflected overpressure of blast shock with water surrounding an explosive in a confined space.DEFENCE TECHNOLOGY,17(3). |
MLA | Xu, Hai-bin,et al."Mitigation effects on the reflected overpressure of blast shock with water surrounding an explosive in a confined space".DEFENCE TECHNOLOGY 17.3(2021). |
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