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为了研究高速撞击条件下含不同直径钨丝/锆基非晶复合材料弹芯的侵彻特性,使用含有4种不同直径钨丝的复合材料弹芯在1000~1600 m/s的速度区间进行穿甲实验。研究发现:钨丝/锆基非晶复合材料弹坑直径比钨合金小10%以上,“自锐”效果明显;理想侵彻时,存在一个阈值速度,钨丝/锆基非晶复合材料弹芯在低于该速度侵彻时,其侵彻过程中的破坏模式为类似于贫铀合金的绝热剪切破坏,而高于该阈值速度时,破坏模式变成钨丝的屈曲、回流,而且该阈值速度随着复合材料中钨丝直径的增加而增加;钨丝/锆基非晶复合材料弹芯中钨丝的直径会影响其侵彻过程中的稳定性,钨丝直径越大,该复合材料弹芯在侵彻过程中越容易出现劈裂等破坏,导致弹道偏转等。
In order to study the penetration characteristics of tungsten core / zirconia-based amorphous composite cores with different diameters under high-speed impact conditions, a composite core with four different diameters of tungsten wires was worn at a speed range of 1000-1600 m / s A experiment. The results show that the diameter of crater / Zr-based amorphous composite material is more than 10% smaller than that of tungsten alloy, and the effect of “self-sharpening” is obvious. At the ideal penetration, there is a threshold velocity, When the slug penetrates below this velocity, the failure mode during its penetration is adiabatic shear failure similar to depleted uranium alloys, and above which the failure mode becomes the buckling, backflow of the tungsten wire and The threshold velocity increases with the increase of the diameter of the tungsten wire in the composite. The diameter of the tungsten wire in the tungsten / zirconium-based amorphous composite core affects the stability during penetration. The larger the diameter of the tungsten wire, In the process of penetration, the composite material core is more prone to splitting and other damage, resulting in ballistic deflection.