小口径弹丸侵彻双箭头负泊松比蜂窝夹芯结构的弹道特性

刘洋佐, 徐诚, 马吴宁, 任杰, 张震东

Ballistic Penetration of Small-Caliber Bullet in Double-Arrow Honeycomb Core Structures with Negative Poisson’s Ratio

LIU Yangzuo, XU Cheng, MA Wuning, REN Jie, ZHANG Zhendong

表5 弹体侵彻NPR夹芯结构的仿真结果

Tab.5 Simulation results of projectile body penetrating NPR sandwich structure

vi/(m·s-1) 组别a 组别b 组别c vr/(m·s-1) η vr/(m·s-1) η vr/(m·s-1) η 300 0 1 0 1 0 1 400 0 1 0 1 0 1 500 0 1 0 1 0 1 600 0 1 0 1 0 1 700 0 1 265.24 0.856 233.41 0.888 750 0 1 372.82 0.753 374.24 0.751 800 277.78 0.879 332.41 0.827 383.00 0.770 850 437.62 0.735 65.34 0.994 381.34 0.798 900 141.40 0.975 137.48 0.976 116.05 0.983 950 486.52 0.737 135.29 0.979 333.83 0.876 1 000 417.90 0.825 240.63 0.942 439.17 0.807 vi/(m·s-1) 组别d 组别e 组别f vr/(m·s-1) η vr/(m·s-1) η vr/(m·s-1) η 300 0 1 0 1 0 1 400 0 1 0 1 0 1 500 0 1 0 1 0 1 600 56.55 0.991 212.76 0.874 142.74 0.943 700 330.86 0.776 257.96 0.864 380.65 0.704 800 353.59 0.804 465.31 0.661 446.26 0.688 900 207.92 0.946 501.75 0.689 571.72 0.596 1 000 434.12 0.811 594.57 0.646 676.91 0.541 vi/(m·s-1) 组别g 组别h 组别i vr/(m·s-1) η vr/(m·s-1) η vr/(m·s-1) η 300 0 1 0 1 0 1 400 0 1 0 1 0 1 500 0 1 64.94 0.983 0 1 600 300.80 0.748 301.22 0.747 286.41 0.772 700 408.43 0.659 423.92 0.633 414.33 0.649 800 511.09 0.591 534.17 0.554 519.61 0.578 900 635.61 0.501 654.95 0.470 634.17 0.503 1 000 737.72 0.455 763.98 0.416 740.85 0.451