曲率半径对具有PELE效应的EFP成型影响分析
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摘要
为提高弹药对轻型装甲的毁伤能力,提出一种内含低密度材料的新型弧锥结合药型罩。使用有限元软件LS-DYNA模拟EFP成型与侵彻的过程,分析了各曲率半径对EFP成型的影响规律。结果表明:所设计的药型罩可以形成具有PELE结构的EFP,药型罩外曲率半径取10～70 mm,装填物外曲率半径取30～60 mm,装填物内曲率半径取47～59 mm,药型罩内曲率半径取45～55 mm时EFP成形效果较好。优化得到的EFP在射入靶板时产生横向效应使其扩孔,并在穿透靶板后形成高速破片对目标内部二次毁伤。
In order to improve the ammunition damage to light armor, a novel arc-cone liner which contains the low density filler was proposed. Numerical simulations by LS-DYNA were used to research the forming and penetration of the EFP. The influence of arc curvature radius on the forming of EFP was analyzed. The result shows that the liner can form a covered EFP with PELE structure. When the outer arc curvature radius of liner is 10～70 mm, the outer arc curvature radius of filler is 30～60 mm, the inner arc curvature radius of filler is 47～59 mm, the inner arc curvature radius of liner is 45～55 mm, the EFP is formed with better performance. The optimized liner can create a lateral efficiency when it enters the target, and forming high-speed fragments in the target interior to form secondary damage when it penetrates the target.
In order to improve the ammunition damage to light armor, a novel arc-cone liner which contains the low density filler was proposed. Numerical simulations by LS-DYNA were used to research the forming and penetration of the EFP. The influence of arc curvature radius on the forming of EFP was analyzed. The result shows that the liner can form a covered EFP with PELE structure. When the outer arc curvature radius of liner is 10～70 mm, the outer arc curvature radius of filler is 30～60 mm, the inner arc curvature radius of filler is 47～59 mm, the inner arc curvature radius of liner is 45～55 mm, the EFP is formed with better performance. The optimized liner can create a lateral efficiency when it enters the target, and forming high-speed fragments in the target interior to form secondary damage when it penetrates the target.
引文
[1]张洪成. PELE对低空目标毁伤性能研究[D].太原:中北大学,2013.
[2]李干,王志军,王妍,等. PELE侵彻复合装甲数值模拟[J].弹道学报,2016,28(3):81-85.
[3] PAULUS G,CHANTERET P Y,WOLLMANN E. PELE:A new penetrator concept for the generation of lateral effects[C]//IBS. Proceedings of the 21st International Symposium on Ballistics. Orlando:IBS,2004:104-110.
[4]尹建平,王志军,魏继允.长径比对侵彻膨胀弹横向效应的影响[J].弹箭与制导学报,2010,30(2):87-89.
[5]尹建平,王志军,魏继允.内外径比对PELE横向效应影响的数值模拟[J].弹道学报,2010,22(1):79-82.
[6] ARNOLD W,ROTTENKOLBER E,HARTMANNT. Axially Switchable Modes Warheads[C]//28th International Symposium on Ballistics. Atlanta,Georgia,22-26 September,2014:289-300.
[7] CARDOSO D,TEIXEIRA-DIAS F. Modelling the formation of explosively formed projectiles(EFP)[J]. International Journal of Impact Engineering,2016,93:116-127.
[8]李伟兵,王晓鸣,李文彬,等.药型罩结构参数对多模毁伤元形成的影响[J].弹道学报,2009,21(1):19-23.
[9]李慧子.多模成型装药的药型罩结构设计[D].南京:南京理工大学,2011.
[10]高接东.基于变壁厚药型罩的LEFP成型机理研究[D].南京:南京理工大学,2013.
[11]曹兵. EFP成形机理及关键技术研究[D].南京:南京航空航天大学,2001.
[12]李文彬,王晓鸣,李伟兵,等.成型装药多模战斗部设计原理[M].北京:国防工业出版社,2016:61.
[2]李干,王志军,王妍,等. PELE侵彻复合装甲数值模拟[J].弹道学报,2016,28(3):81-85.
[3] PAULUS G,CHANTERET P Y,WOLLMANN E. PELE:A new penetrator concept for the generation of lateral effects[C]//IBS. Proceedings of the 21st International Symposium on Ballistics. Orlando:IBS,2004:104-110.
[4]尹建平,王志军,魏继允.长径比对侵彻膨胀弹横向效应的影响[J].弹箭与制导学报,2010,30(2):87-89.
[5]尹建平,王志军,魏继允.内外径比对PELE横向效应影响的数值模拟[J].弹道学报,2010,22(1):79-82.
[6] ARNOLD W,ROTTENKOLBER E,HARTMANNT. Axially Switchable Modes Warheads[C]//28th International Symposium on Ballistics. Atlanta,Georgia,22-26 September,2014:289-300.
[7] CARDOSO D,TEIXEIRA-DIAS F. Modelling the formation of explosively formed projectiles(EFP)[J]. International Journal of Impact Engineering,2016,93:116-127.
[8]李伟兵,王晓鸣,李文彬,等.药型罩结构参数对多模毁伤元形成的影响[J].弹道学报,2009,21(1):19-23.
[9]李慧子.多模成型装药的药型罩结构设计[D].南京:南京理工大学,2011.
[10]高接东.基于变壁厚药型罩的LEFP成型机理研究[D].南京:南京理工大学,2013.
[11]曹兵. EFP成形机理及关键技术研究[D].南京:南京航空航天大学,2001.
[12]李文彬,王晓鸣,李伟兵,等.成型装药多模战斗部设计原理[M].北京:国防工业出版社,2016:61.