复合 MEFP 战斗部侵彻性能及其后效的仿真研究

为研究新型复合 MEFP 战斗部在破甲武器中的应用，运用 ANSYS ／LS-DYNA 有限元分析软件，采用多物质ALE 流固耦合算法，对复合 MEFP 战斗部侵彻体成型过程进行数值仿真计算，研究其侵彻体性能，并选择靶板进行侵彻，分析侵彻性能及穿孔孔径和毁伤范围，最后以后效靶板进行验证，综合分析复合 MEFP 战斗部的侵彻性能及后效影响；结果表明：该复合 MEFP 聚能战斗部在起爆方式选取单点同时起爆时，形成互不影响的1个主 EFP 和4个辅EFP，可以同时侵彻靶板，提升侵彻性能；主、辅 EFP 侵彻钢靶使孔径增大，并且提升了战斗部毁伤范围；复合 MEFP战斗部后效作用明显，侵彻后效靶板的孔径为48 mm，大大提升了 EFP 战斗部的毁伤性能。

Study on Numerical Simulation of Composite MEFP Performance and Afftereffect

For studying novel complex of MEFP warhead in anti armour weapons applications,using finite element analysis software ANSYS /LS-DYNA,using ale multi material fluid solid coupling algorithm,the composite of MEFP warhead penetrating body forming process was applied to the numerical simulation to have the penetration performance research,and choose the target penetration,and analyze penetration performance and perforation aperture and the scope of damage,and finally effect target board for validation was verified to have comprehensive analysis of composite of MEFP warhead penetration performance and the afte reffect.Results show that the composite MEFP shaped charge warhead detonation mode selected single point simultaneous initiation,it formated mutual influence of a main EFP and four auxiliary EFP, which can also penetrating the target,and enhance the penetration performance,main and auxiliary EFP penetrating steel target so as to increase the aperture,and to enhance the damage range of warhead;composite MEFP warhead backwash has obvious effect,the penetration aftereffect of target plate aperture is 48mm,which greatly enhances the damage performance of EFP warhead.