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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
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).