稀疏波对不同装药圆柱壳体响应行为的影响  

Influence of Rarefaction Waves on the Response Behavior of Cylindrical Shells with Different Charges

作　　者：程波[1] 程炀 孙加肖 明路遥 CHENG Bo;CHENG Yang;SUN Jiaxiao;MING Luyao(Southwest Technology and Engineering Research Institute,Chongqing,400039)

机构地区：[1]西南技术工程研究所,重庆400039

出　　处：《爆破器材》2024年第4期17-22,27,共7页Explosive Materials

摘　　要：为了研究稀疏波对不同装药圆柱壳体响应行为的影响,采用AUTODYN软件研究了不同装药类型、复合装药排布方式及复合装药长度下轴向稀疏波的作用范围、稀疏波对壳体的破碎情况及轴向速度的分布规律。研究结果表明:炸药威力变大,会增加起爆端轴向稀疏波的作用区域,该区域的壳体在轴向上与径向上破碎加剧;增大起爆端装药威力,不增大轴向稀疏波影响的区域,但会加剧起爆端轴向稀疏波区域内的壳体破碎程度及增大破片速度;增大非起爆端装药威力,不影响壳体的破碎程度,但会降低起爆端稀疏波影响区域内的破片速度;当B炸药(Comp.B)装药长度不在起爆端稀疏波影响区域时,壳体会在装药交界处发生断裂。In order to study the effect of rarefaction waves on the response behavior of cylindrical shells with diffe-rent charges,AUTODYN software was used to study the influence of charge type,composite charge layout,and composite charge length on the action range of axial rarefaction wave,the degree of shell fragmentation,and the distribution of axial velocity.Research results indicate that,as the explosive power increases,the area of action of the axial rarefaction wave at the detonation end increases,and the shell in this area becomes more fractured in both axial and radial directions.Increa-sing the charge power at the initiation end does not increase the area affected by axial rarefaction waves,but it will exacerbate the degree of shell fragmentation and increase fragment velocity in axial rarefaction wave area at the initiation end.The increased power of the non detonation end charge does not affect the fragmentation of the shell,but it will reduce the fragment velocity in rarefaction wave influence zone at the detonation end.When the charge length of Comp.B is not within the rarefaction wave influence zone at the detonation end,the shell will fracture at the charge boundary.

关 键 词：装药类型 响应行为 稀疏波 壳体破碎 轴向速度 

分 类 号：O38[理学—流体力学]