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金属壳体装药水下爆炸的冲击波特性

项大林 荣吉利 李健 杨荣杰

爆炸与冲击2012,Vol.32Issue(1):67-72,6.
爆炸与冲击2012,Vol.32Issue(1):67-72,6.

金属壳体装药水下爆炸的冲击波特性

Shock wave features of underwater explosion of explosives with metal shell

项大林 1荣吉利 1李健 2杨荣杰1

作者信息

  • 1. 北京理工大学宇航学院,北京100081
  • 2. 广西工学院汽车工程系,广西柳州545006
  • 折叠

摘要

Abstract

Experiment and numerical simulation were performed by using 1 kg cylindrical aluminized explosive cased by 6 mm thick steel and aluminum shells, respectively. The results show that the steel shell can enhance the impulse, shock wave energy and decay time compared with the aluminum shell. And the influences of the steel shell thickness were analyzed. With the increase of the thickness,the shock wave were enhanced and then weaken, and there was a lag-effect for the peak pressure of the shock wave. For a given mass of explosive, there lies an optimum shell thickness for enhancing the shock wave peak pressure. For different mass, the mass ratio of shell to explosive is an important parameter for estimating the underwater explosion of cased explosive.

关键词

爆炸力学/冲击波/水下爆炸/金属壳

Key words

mechanics of explosion/ shock wave/ underwater explosion/ metal shell

分类

数理科学

引用本文复制引用

项大林,荣吉利,李健,杨荣杰..金属壳体装药水下爆炸的冲击波特性[J].爆炸与冲击,2012,32(1):67-72,6.

基金项目

国防科工局火炸药专项项目(D2220092904) (D2220092904)

爆炸与冲击

OA北大核心CSCDCSTPCD

1001-1455

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