高速深侵彻概念弹质量损失及头形钝化的表征模型

Modeling on Mass Loss and Nose Blunting of CPHP

基于课题组前期开展的高速深侵彻概念弹试验,发现弹体的总质量损失、壳体和头部的质量损失均与初始动能成正比,比例系数由试验结果拟合得到;而侵彻后弹头形状仍可近似为尖卵形,仅弹头轮廓母线的曲率半径和弹径之比(即CRH值)减小。基于以上结论,建立了高速深侵彻概念弹质量损失和头形钝化的表征模型,模型预测结果与试验结果吻合良好。

Based on the penetration experiments of CPHP carried out by our group, it was found that the total mass loss, mass loss of shank and nose of CPHP were all proportional to its initial kinetic energy, and the proportional coeffi- cients were linear fitted by the experimental data. Furthermore, the nose shape of CPHP after penetration was still ogival, just with a smaller CRH value, ie, the ratio of radius of curvature of projectile nose contour to the radius of projectile. Based on these observations and analyses, models for the mass loss of CPHP and nose blunting were respectively construc- ted, and the model predictions are consistent with the experimental results, respectively.