变参数锥孔装药聚能效应及其应用研究

针对聚能装药对目标攻击过程载荷高频、瞬态,同时涉及结构大变形等问题,基于SPH方法建立二维数值模型,对聚能装药的炸药爆轰、金属射流形成以及射流冲击靶板3个阶段进行模拟再现.以某型水面舰船的船体主甲板结构为例,通过计算模拟,比较分析了相同药量的锥孔装药与方形装药对甲板结构的毁伤效应,总结得到装药长度(装药量)、药型罩锥角和炸高等参数对聚能效应的影响机理.

Cumulative effect of the variable-parameter shaped charge with application

Some characteristics,such as high-frequency,transient load,and large deformation of structures,were found in the process of a cumulative shaped charge attacking targets.Based on the SPH method,the shaped charge with a cumulative effect was simulated in three stages——detonation,formation of the metallic jet,and its impact on the target plate.Furthermore,the main deck of XXX surface ship was taken as an example to simulate the damage effects of two charges with the same mass but different shapes-a conical shaped charge and square charge.The influences of the charge length,the cone angle of the metallic liner,and the blasting height on the cumulative effect of the shaped charge were also included.This paper aims at providing references for military fields and related engineering application.