鎢絲直徑對鋯基復(fù)合非晶材料穿甲性能的影響
發(fā)布時間：2018-11-19 16:19
【摘要】：針對4種不同直徑鎢絲/鋯基非晶復(fù)合材料彈芯,在(1270±40)m/s撞擊速度,開展了侵徹均質(zhì)半無限裝甲鋼板實驗研究,并與普通鎢合金進行了對比。研究發(fā)現(xiàn),在相同的制備工藝條件下,鎢絲直徑對該復(fù)合材料彈芯侵徹效果影響較大,主要表現(xiàn):(1)在理想侵徹的條件下,鎢絲直徑對該種材料的侵徹性能影響較大,彈丸侵徹深度和鎢絲直徑關(guān)系曲線是凸的,Φ0.7 mm鎢絲方案丸侵徹深度最大,最大侵徹深度為55 mm,相對于鎢合金材料威力提高了25%,其根本原因是Φ0.7 mm鎢絲方案在侵徹過程中呈現(xiàn)與鈾合金類似的絕熱剪切破壞特征,彈坑底部呈現(xiàn)90o的自銳角。(2)鎢絲直徑對彈芯在高速條件下的侵徹體頭部破壞形式有著重要的影響,隨著鎢絲直徑的增加,其頭部的破壞模式隨直徑變化存在一個從變形+劈裂+彎曲+斷裂的復(fù)合破壞模式到絕熱剪切破壞演變過程,然后又從絕熱剪切向復(fù)合模式破壞轉(zhuǎn)變。
[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 鹵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.
【作者單位】： 南京理工大學(xué);中國科學(xué)院金屬研究所;
【基金】：國家自然科學(xué)基金(11372142) 爆炸科學(xué)與技術(shù)國家重點實驗室(北京理工大學(xué))開放基金(KFJJ12-9M)
【分類號】：TB33
本文編號：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 鹵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.
【作者單位】： 南京理工大學(xué);中國科學(xué)院金屬研究所;
【基金】：國家自然科學(xué)基金(11372142) 爆炸科學(xué)與技術(shù)國家重點實驗室(北京理工大學(xué))開放基金(KFJJ12-9M)
【分類號】：TB33
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