杆弹侵彻钢纤维混凝土靶板的工程近似分析

Engineering analysis on projectile penetrating steel fiber reinforced concrete

在土盘模型的基础上,把杆弹正侵彻靶板的二维轴对称问题,简化为弹丸的轴向侵彻运动和靶板"土盘"的径向运动两个准一维运动,并对杆弹侵彻钢纤维混凝土靶进行工程近似计算,其中钢纤维混凝土的锁应变本构模型考虑钢纤维含量、压力相关性、应变率效应的影响。计算的结果与实验结果相近,符合弹丸侵彻混凝土类材料靶板的规律。

On the basis of the soil-disc model, an engineering analytical method used to analyze the penetration of spherical headed projectile into steel fiber reinforced concrete （SFRC） target is studied, in which the 2-D penetrating movement is simplified as the projectile and the target two 1-D respective movement. And the steel fiber content, strain-rate hardening and pressure effect are considered in the analytical process. The analytical results are consistent with the experimental data and the penetrating rule, showing that the method is feasible.