为研究弹体以较高速侵彻素混凝土/钢筋混凝土的差异,以125mm滑膛炮作为发射平台,将采用锥形变壁厚扩尾的尖卵形弹体以1200~1500m/s的速度侵彻C35混凝土。根据试验结果,对弹体侵彻两种靶板的质量损失与动能关系进行对比表明钢筋的加入使得侵蚀系数增加了近一倍,对弹体的质量损失有显著的影响。用已有的适用于此速度下公式对试验数据进行拟合,显示该公式可以较准确的计算出弹体在不同速度下的侵彻深度但速度与侵深仅呈现单一的线性关系,不能表现出试验中速度增加侵深逆减的现象且无法预测弹体的极限侵彻速度。通过仿真对试验复现,对弹尾入靶后时刻进行空腔膨胀相应分区并对弹体带着角与攻角侵彻两种靶板仿真,发现弹体在侵彻钢筋混凝土靶板时的横向过载减少,弹道偏转减弱。

In order to study the difference between the projectile penetration of plain/reinforced concrete at higher speeds,a 125mm smoothbore gun was used as a launching platform,and a pointed ovoid projectile with a tapered variable wall thickness expanding tail was used to penetrate C35 concrete at a speed of 1200~1500m/s. The results showed that the inclusion of steel reinforcement doubled the erosion coefficient and had a significant effect on the mass loss of the two target slabs. According to the test results,the comparison of the mass loss and kinetic energy of the projectile penetrating two kinds of target plates shows that the addition of steel reinforcement doubles the erosion coefficient,which has a significant effect on the mass loss of the projectile. The existing formula applicable to this speed is fitted to the test data,showing that the formula can more accurately calculate the depth of penetration of the projectile at different speeds,but the speed and the depth of penetration only show a single linear relationship,which cannot show the phenomenon of increasing speed and decreasing depth of penetration in the test,and it is not possible to predict the limiting speed of penetration of the projectile. Through the simulation of the test reproduction of the bullet tail into the target moment after the corresponding partition of the cavity expansion and the projectile with the angle of attack and angle of penetration of the two kinds of target plate simulation,found that the projectile in the penetration of the reinforced concrete target plate when the transverse overload is reduced,the trajectory deflection is weakened.