尺寸效应对复合靶抗射流侵彻性能影响研究

Study on Influence of Anti-penetration Performance of Composite Target with Scale Effect

采用标准聚能装药对以聚乙烯橡胶为夹层的复合靶板进行了抗射流侵彻研究。通过数值仿真方法和Energy-Thickness(E-T)曲线研究并测试了在相同炸高下"三明治"结构复合靶板的面板和背板厚度对其抗射流侵彻性能的影响。结果表明,面板厚度变化对复合靶板消耗侵彻射流的能量影响较大,背板厚度变化对射流侵彻复合靶板后射流破碎情况影响较大。文中采用E-T曲线可以直接观察面板和背板厚度变化对复合靶板抗射流侵彻性能的影响能力,并根据计算和分析结果给出了合适的面板和背板厚度。

The study of protective to penetration of composite armor whose sandwich laminated material is ploy-rubber ant-penetrated by standard shaped charge has been carried on.The affection of front panel and back panel’s scale effect for 'sandwich' kind composite target anti-penetrated by jet on the same stand-off distance based on AUTODYN and Energy-Thickness curve.The result shows that the thickness of the front panel change has important affect for the composite target which enervates the jet’s energy and the thickness of the back panel change has great influence for the abruption of the jet after the jet breakthrough the composite target.The change of the anti-penetration performance for the composite target resisted the jet with the change of front panel and back panel’s thickness can be seen immediately from the E-T curve.The right thickness of the front panel and back panel can be given from the result of calculation and analysis.