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针对4种不同直径钨丝/锆基非晶复合材料弹芯,在(1270±40)m/s撞击速度,开展了侵彻均质半无限装甲钢板实验研究,并与普通钨合金进行了对比。研究发现,在相同的制备工艺条件下,钨丝直径对该复合材料弹芯侵彻效果影响较大,主要表现:(1)在理想侵彻的条件下,钨丝直径对该种材料的侵彻性能影响较大,弹丸侵彻深度和钨丝直径关系曲线是凸的,Φ0.7 mm钨丝方案丸侵彻深度最大,最大侵彻深度为55 mm,相对于钨合金材料威力提高了25%,其根本原因是Φ0.7 mm钨丝方案在侵彻过程中呈现与铀合金类似的绝热剪切破坏特征,弹坑底部呈现90o的自锐角。(2)钨丝直径对弹芯在高速条件下的侵彻体头部破坏形式有着重要的影响,随着钨丝直径的增加,其头部的破坏模式随直径变化存在一个从变形+劈裂+弯曲+断裂的复合破坏模式到绝热剪切破坏演变过程,然后又从绝热剪切向复合模式破坏转变。
Four (4) different diameter tungsten / zirconia-based amorphous composite cores were tested at (1270 ± 40) m / s impact velocity, . The results show that under the same process conditions, the diameter of tungsten wire has a great influence on the penetration efficiency of the composite core. The main results are as follows: (1) Under the ideal conditions of penetration, Torch penetration depth and the relationship between the diameter of the tungsten filament curve is convex, Φ0.7 mm tungsten program pill penetration depth of the largest, the maximum penetration depth of 55 mm, relative to the power of tungsten alloy material increased by 25 %. The fundamental reason for this is that the Φ0.7 mm tungsten wire scheme exhibits the adiabatic shear failure characteristics similar to uranium alloys during the penetration process. The bottom of the crater presents a 90 ° self-acute angle. (2) The diameter of tungsten wire has an important influence on the failure mode of the penetrating body under high speed. As the diameter of tungsten wire increases, the failure mode of the head varies with the diameter. + Bending + fracture composite failure mode to adiabatic shear failure evolution, and then from adiabatic shear to composite mode destruction transformation.