钨丝直径对锆基复合非晶材料穿甲性能的影响
发布时间：2018-11-19 16:19
【摘要】：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。
[Abstract]:For four kinds of tungsten wire / zirconium matrix amorphous composites with different diameters, an experimental study on penetration of homogeneous semi-infinite armor plate at (1270 卤40) m / s impact velocities was carried out, and the results were compared with those of ordinary tungsten alloys. It is found that the diameter of tungsten wire has a great influence on the penetration effect of the composite under the same preparation conditions. (1) under the ideal penetration condition, the diameter of tungsten wire has a great effect on the penetration performance of the composite. The curve of relation between penetration depth of projectile and diameter of tungsten wire is convex. The projectile penetration depth of 桅 0.7 mm tungsten wire scheme is the largest, and the maximum penetration depth of 55 mm, is 25% higher than that of tungsten alloy material. The fundamental reason is that the 桅 0.7 mm tungsten wire scheme shows the same adiabatic shear failure characteristics as uranium alloy during penetration. The bottom of the crater presents a self-acute angle of 90 o. (2) the diameter of tungsten wire has an important effect on the head failure of the projectile core at high speed, and with the increase of the diameter of tungsten wire, The failure mode of the head changes with the diameter of the head, and there exists a process of evolution from the composite failure mode of deformation-splitting and bending fracture to adiabatic shear failure, and then from adiabatic shear to composite mode failure.
【作者单位】： 南京理工大学;中国科学院金属研究所;
【基金】：国家自然科学基金(11372142) 爆炸科学与技术国家重点实验室(北京理工大学)开放基金(KFJJ12-9M)
【分类号】：TB33
本文编号：2342807
[Abstract]:For four kinds of tungsten wire / zirconium matrix amorphous composites with different diameters, an experimental study on penetration of homogeneous semi-infinite armor plate at (1270 卤40) m / s impact velocities was carried out, and the results were compared with those of ordinary tungsten alloys. It is found that the diameter of tungsten wire has a great influence on the penetration effect of the composite under the same preparation conditions. (1) under the ideal penetration condition, the diameter of tungsten wire has a great effect on the penetration performance of the composite. The curve of relation between penetration depth of projectile and diameter of tungsten wire is convex. The projectile penetration depth of 桅 0.7 mm tungsten wire scheme is the largest, and the maximum penetration depth of 55 mm, is 25% higher than that of tungsten alloy material. The fundamental reason is that the 桅 0.7 mm tungsten wire scheme shows the same adiabatic shear failure characteristics as uranium alloy during penetration. The bottom of the crater presents a self-acute angle of 90 o. (2) the diameter of tungsten wire has an important effect on the head failure of the projectile core at high speed, and with the increase of the diameter of tungsten wire, The failure mode of the head changes with the diameter of the head, and there exists a process of evolution from the composite failure mode of deformation-splitting and bending fracture to adiabatic shear failure, and then from adiabatic shear to composite mode failure.
【作者单位】： 南京理工大学;中国科学院金属研究所;
【基金】：国家自然科学基金(11372142) 爆炸科学与技术国家重点实验室(北京理工大学)开放基金(KFJJ12-9M)
【分类号】：TB33
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