长杆射弹对钢纤维混凝土靶开坑特性的实验研究

为考察射弹对钢纤维混凝土靶的侵彻特性,采用57mm轻气炮,进行了小尺寸模拟射弹对钢纤维混凝土靶(钢纤维的体积分数为2%)的侵彻实验。实验中观察了钢纤维混凝土靶的开坑形状,测量了射弹的击靶速度,并且采用注沙法测出靶体的开坑体积,计算出射弹对靶体的侵彻体积,得到了长杆射弹的动能与侵彻体积的关系。引入射弹单位面积的冲击动能和靶体单位侵彻体积的冲击动能,结合钢纤维混凝土靶的实验数据,考察了两者之间的关系。

Experimental Study of the Crater Performance about the Long Rod Projectile Penetrating Steel Fiber Reinforced Concrete Target

The experiments of small scale projectiles penetrating SFRC targets are performed on the 57mm diameter light gas gun. They are intended to investigate the performance of the projectile penetrating into the steel fiber reinforced concrete (SFRC) targets (volume percentage of 5). The impacted crater shapes of SFRC targets are observed, and the velocities of projectiles impacting the targets are measured. The crater volume of the targets is measured by the pouring sand-filling method, and the penetration volume is calculated. The relation between the kinetic energy of the projectile and the penetration volume is obtained. The kinetic energy of per unit penetration volume and the impact kinetic energy per unit cross section are introduced to review their relation by dealing with the experimental data.