B900FD-1型防弹钢板抗侵彻能力数值模拟

Numerical Simulation for B900FD-1 Bulletproof Armor Plate Against Penetration

采用ANSYS/LS-DYNA有限元分析软件对B900FD-1型防弹钢板抗侵彻能力进行了数值模拟,对比分析了数值模拟结果与试验结果之间的异同,数值模拟结果表明采用Johnson-Cook本构模型能够较好地模拟金属类延性材料在强动载荷作用下的物理力学特性.进一步采用数值分析方法对不同厚度的B900FD-1型防弹钢板进行了侵彻模拟,得到了500 m/s子弹撞击速度下钢板的极限设计厚度.

ANSYS/LS-DYNA is used to simulate the penetration process of B900FD - 1 bulletproof armor plate, Comparisons and analysis were made between numerical simulation and experiment results. The numerical simulations shows that the Johnson-Cook constitutive model could simulate the physical and mechanical behaviors of ductile materials under shock-loaded. The ultimate-thickness of B9OOFD-1 bulletproof armor plate under 500m/s impact velocity is analyzed by more numerical simulations.