摘要
为研究偏心起爆对聚能射流形成的影响程度,利用LS-DYNA有限元软件,采用ALE方法对偏心起爆条件下聚能射流的形成过程进行了三维数值模拟,并与X光测试结果进行了对比。计算结果表明,对于此尺寸的聚能装药,偏心量为1mm时,对射流形成的影响不明显;当偏心量为2mm时,横向漂移速度会突然增加;当偏心量进一步增加时,会使射流出现严重的剪切断裂。
The 3D computational simulation results of the jet formation in shaped charge under eccentric initiation were presented.These calculations were performed using finite-element code LS-DYNA,and compared with X-Ray measurement.For this shaped charge configuration,the effect of 1mm off-center initiation on jet formation is very low,the lateral drift velocity increases drastically with 2mm off-axis initiation,and the shaped charge jet breaks severally into particles when the eccentric value increases.
出处
《弹箭与制导学报》
CSCD
北大核心
2012年第1期85-88,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
基金
国家自然科学基金(11072222)资助
关键词
爆炸力学
聚能装药
偏心起爆
射流形成
mechanics of explosion
shaped charge jet
eccentric initiation
jet formation
