为了得出靶厚和着速对钢弹体PELE侵彻后效的影响规律,采用PELE实验弹以不同着速分别侵彻不同厚度钢板,并对后效靶上破片穿孔的数量和分布进行了分析。结果表明,在实验条件下,破片数量与着速和靶厚均有二次函数关系,破片飞散角与着速呈二次函数,但与靶厚呈线性减函数关系;着速对破片数量的影响要大于它对破片飞散角的影响;降低靶厚也利于增大破片飞散角。

In order to educe the influence rule between thickness of RHA, impact velocity and penetration aftereffect of steel shell PELE, a series of PELE projectiles impacted differently thick RHA with different impact velocity, and the number and the distributing of fragment perforation were analyzed. The results indicate that the number of fragment takes on a quadratic function relation to impact velocity and thickness of RHA, the angle of splashing fragment embodies a quadratic function relation with impact velocity and a linear function relation to thickness of RHA. Impact velocity influences the number of fragment more than the angle of splashing fragment. Reducing the thickness of RHA makes for enlarging the angle of splashing fragment under a certain condition.