Experiment and numerical simulation study on the near-field underwater explosion of aluminized explosive

被引：0

作者：

Sun Y. ^{[1
]}

Tian J. ^{[1
]}

Zhang Z. ^{[1
]}

Shi M. ^{[1
]}

机构：

[1] State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2020年 / 39卷 / 14期

关键词：

Aluminized explosive; Coupled Eulerian-lagrangian(CEL); Experimental study; Near-field underwater explosion; Numerical simulation; Shock wave;

D O I：

10.13465/j.cnki.jvs.2020.14.025

中图分类号：

学科分类号：

摘要：

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. © 2020, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：171 / 178and193

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