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2 45#钢、2024铝Johnson-Cook本构参数

Tab.2 Johnson-Cook constitutive parameters of 45# steel and 2024 aluminum

材料 ρ/(g·cm-3) A1/MPa B1/MPa C n m Tm/K Tr/K 45#钢 7.82 507 320 0.064 0.28 1.06 1 795 300 2024铝 2.78 265 426 0.015 0.34 1.00 933 300