焊接薄壁弹体侵彻多层钢筋混凝土靶实验研究

Welding Thin-Walled Projectiles for Penetrating Multi-Layered Reinforced Concrete Targets

为研究焊接薄壁侵彻弹体的技术可行性,进行了有限元数值仿真,并参考数值仿真结果设计了一组对比实验,利用100mm口径滑膛炮作为发射平台,开展了焊接薄壁弹体侵彻多层钢筋混凝土靶实验。通过实验对比分析了4种不同焊接薄壁弹体的结构响应和靶板破坏情况,优选出了较佳的头部焊接工艺和位置,并对尾部连接方式的强度进行了考核。研究结果可为焊接薄壁弹体的结构设计提供参考。

To appraise the technical feasibility of welding thin-walled projectile for penetrating multi-layered reinforced concrete targets, we used the finite element method to simulate the penetration process and designed a set of comparative tests based on the simulation results. The welded thin-walled projectiles were launched from a 100-mm-diameter, smooth-bore powder gun,impacting the multi-layered reinforced concrete targets. A comparative analysis of the structural response characteristics for four projectiles and the damaging effects on the targets were conducted, the optimal techniques and location on the projectile head for the welding were determined,and the joint strength of the projectile tail was measured. These results can serve as reference for the structural design of welded thin-walled projectiles.