Q235钢单层板对平头刚性弹抗穿甲特性研究

采用撞击实验和理论模型对单层金属板的抗侵彻性能进行了研究,分析了靶体厚度对抗侵彻性能的影响。通过对比撞击实验和理论模型计算结果,验证了理论模型和参数的有效性。结果表明,采用合适的理论模型能够有效地预测靶板在弹体撞击下的弹道极限。此外,分析了靶体在弹体撞击下的塑性变形总耗能,包括靶板局部变形和整体变形的耗能,同时考虑了靶体材料的应变率效应。在平头弹撞击厚靶的工况中,引入了一个修正函数对靶体厚度进行修正。

Ballistic resistance of Q235 steel monolithic plates impacted by rigid blunt-nosed projectiles

The impact tests and theoretical studies were carried out to study the ballistic performance of monolithic steel plates, and the influence of the thickness of plates on the ballistic performance was revealed. In general, good agreement was obtained between the predictions from analytical model and the experimental results. Results showed that the theoretical model can be used to predict the ballistic limit velocities of plates under the impact of projectiles. Moreover, the energy absorption of plastic deformation of plates was discussed and accounted for the effect of strain rate of plate material, including local and global deformation energy absorption. An amendment function was used correct to the thickness of plate in the case of plate impacted by blunt-nosed projectile.