Investigation on Dynamic Response Characteristic of the Confined Powder under Impact Loading

被引：0

作者：

Jin, Wen ^{[1
]}

Jiang, Jianwei ^{[1
]}

Men, Jianbing ^{[1
,2
]}

Li, Mei ^{[1
]}

Li, Haifeng ^{[1
]}

Zhou, Xin ^{[1
]}

机构：

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

[2] Tangshan Research Institute, Beijing Institute of Technology, Hebei, Tangshan

来源：

Binggong Xuebao/Acta Armamentarii | 2024年 / 45卷

关键词：

impact loading; numerical simulation; powder; submunition;

D O I：

10.12382/bgxb.2024.0026

中图分类号：

学科分类号：

摘要：

The density evolution and distribution characteristics of powder in a submunition under impact loadingare studied. Based on the porous material model and the test parameters of the powder, a simulation model of impact loading is established by using finite element analysis software. Machete impact tests under typical working conditions are compard. The simulated results are constant with the test results. The simulated results show that the density change of powder in the submunition during impact loading can be divided into the stable and growth stages, which can form four regions: densification, growth, retention and interspace regions. The width of each region changes linearly with the loading time, and the density distribution of powder has a significant gradient difference. The research results can provide reference for the investigation on the dynamic behavior of submunition which is impacted by the distribution changes of powder. © 2024 China Ordnance Industry Corporation. All rights reserved.

引用

页码：183 / 190

页数：7

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