中文摘要：

开展了半球头杆弹侵彻纤维体积含量分别为0.3％和6％的铜纤维增强混凝土靶板的实验研究．测得了侵彻弹的初始速度和剩余速度，观测和分析了靶板的破坏形态．实验结果表明，随着铜纤维体积含量的增加，杆弹的速度消耗加大，靶板的吸能增加，靶板的破坏程度减弱；超短铜纤维能明显增强混凝土材料的抗侵彻性能，随纤维含量的提高增强效果更佳．

英文摘要：

In order to study the effects of ultra-short steel fiber reinforced concrete on ballistic impact, three finds of concrete targets with different steel fiber volume fraction （0.3 % and 6%） were impacted by hemispherical ended projectile. Both the impact velocity and the residual velocity were measured, and the failure form were observed and recorded. The experiment results show that the velocity of the ballistic reduces with the increase of volume content of steel fiber. The targets consumed much energy, and the targets destroyed less. The results clearly show that the ultra-short steel fiber has obvious strengthen effect for concrete target to resist the penetration and perforation of projectile, and such anti-penetration ability increases with the increase of fiber fraction.