含铝炸药近场水下爆炸冲击波的实验及数值模拟

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Abstract The application of aluminized explosive to underwater explosion can enhance the brisance and damage capability of underwater weapons significantly.The near-field underwater explosion experiments of aluminized explosive RL-F and TNT were carried out using PVDF pressure sensors based on the electrical measurement method.Meantime, the coupled Eulerian-Lagrangian (CEL) method was used for numerieal simulation.The numerical results agree well with the experimental and empirical ones.The results show that the CEL method can be used to simulate the propagation process of near-field underwater explosion shock wave of TNT and aluminized explosive accurately if reasonable boundary conditions, calculation parameters and finite element model are adopted.The near-field underwater shock wave pressure attenuation of aluminized explosive is slower than that of TNT.The approximate regression formulas for the peak pressure of near-field underwater explosion shock wave of TNT within 6 times of charge radius as well as of aluminized explosive in a certain distance range were obtained by fitting the simulation results.
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Key words： aluminized explosive near-field underwater explosion experimental study shock wave numerical simulation coupled Eulerian-lagrangian(CEL)

Received: 28 September 2018 Published: 15 July 2020

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	Articles by authors
	SUN Yuanxiang
	TIAN Junhong
	ZHANG Zhifan
	SHI Mingbiao

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SUN Yuanxiang,TIAN Junhong,ZHANG Zhifan, et al. Experiment and numerical simulation study on the near-field underwater explosion of aluminized explosive[J]. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(14): 171-178.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2020/V39/I14/171

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