水下爆炸对双壳体结构破坏的数值研究

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Numerical Simulation of Double-Layer Plate Structure Destroyed by Underwater Contact Explosion

1.
Military Representative Office, Xi′an Dongfeng Instrument Factory, Xi′an 710065, China
2.
College of Marine Engineeting, Northwestern Polytechnical University, Xi′an 710072, China
3.
Xi′an Military Academy,Xi′an 710108, China

摘要: 针对水下爆炸试验困难的问题，利用有限元方法对双层板壳结构在水下接触爆炸作用下的破坏进行数值仿真模拟，得出了爆炸载荷情况下双层板壳结构的破口形状，位移、应力和压力随时间变化曲线等数值模拟结果，对比了相同爆炸载荷下不同板壳结构的响应，为提高舰船和潜艇整体防护能力以及鱼雷战斗部的设计提供了参考依据。
- 水下爆炸 /
- 双层板壳结构 /
- 数值仿真 /
- 有限元法
Abstract: Because the experiment of underwater explosion is not easy to perform, numerical simulation of double-layer plate structures destroyed by underwater contact explosion was performed using finite element method(FEM). The results of crevasse form, and response curves of displacement, effective stress and pressure versus time of the double-layer structures under explosion load were gained and compared with the responses of the flat plate model and the stiffened plate model under same explosion load. This reseach may be applied in designs of submarine, ship as well as torpedo warhead.
- underwater explosion /
- double-layer plate structure /
- numerical simulation /
- finite element method(FEM)

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