混凝土靶中侵彻深度的相似性研究

SIMILARITY STUDY OF THE PENETRATION DEPTH FOR THE CONCRETE TARGETS

引入弹头性能参数,采用量纲分析方法,对射弹侵彻混凝土靶的深度进行了分析,得到了无量纲侵彻深度与无量纲侵彻初始速度基本成线性的关系.另一方面,利用轻气炮对素混凝土靶和钢纤维混凝土靶进行了侵彻试验,测量了射弹的击靶速度和侵彻深度.试验结果表明,不同弹头形状射弹侵彻素混凝土靶和钢纤维混凝土靶的无量纲侵彻深度与无量纲速度近似成线性关系.

The penetration depth of the projectile penetrating concrete target is analyzed with dimension analysis by introducing warhead performance parameter. The conclusion is found that there is a approximately linear relation between dimensionless penetration depth and dimensionless impact velocity. On the other hand, the penetration experiments of the projectile penetrating common concrete target and steel fiber reinforced concrete target are performed on the light gas gun. And the penetration depth and impact velocity of projectile are measured. The experimental results indicate that the dimensionless penetration depths of the projectiles with different warhead shapes penetrating common concrete and steel fiber reinforced concrete targets are both approximately linear to dimensionless impact velocity.