Penetration of 6061-T6511 aluminum targets by ogive-nose steel projectiles with striking velocities between 0.5 and 3.0 km/s
Penetration of 6061-T6511 aluminum targets by ogive-nose steel projectiles with striking velocities between 0.5 and 3.0 km/s
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DOI：
10.1016/s0734-743x(99)00117-7
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发表时间：
1999-12-01
影响因子：
5.1
通讯作者：
Warren, TL
中科院分区：
文献类型：
--
作者：
Piekutowski, AJ;Forrestal, MJ;Warren, TL
我们进行了一系列的穿透深度实验，使用7.11毫米直径，71.12毫米长，卵形头钢弹和254毫米直径，6061-T6511铝靶。炮弹由真空重熔（VAR）4340钢（R-C 38）和AerMet 100钢（R-C 53）制成，标称质量为0.021公斤，使用火药枪或两级轻气枪发射，打击速度为0.5至3.0公里/秒。由于AerMet 100（R-C 53）钢的拉伸屈服强度比VAR 4340（R-C 38）钢高约1.5倍，因此我们能够证明弹丸强度对弹道性能的影响。靶板试验后的射线照片显示，随着撞击速度的增加，侵彻体的反应有三个不同的区域：（1）射弹保持刚性，明显未变形;（2）射弹在侵彻过程中变形，但头部未被侵蚀，偏离靶板中心线，从靶板侧面穿出或在靶板内严重转弯;（3）射弹在侵彻过程中被侵蚀，质量损失。为了显示弹丸强度的影响，我们提出了作为打击速度的函数的两种类型的钢弹丸在打击速度范围从0.5和3.0公里/秒的穿透深度数据。此外，我们表现出良好的刚性弹丸的穿透数据和空腔膨胀模型之间的协议。(C)1999 Elsevier Science Ltd.保留所有权利。
We performed a series of depth-of-penetration experiments using 7.11-mm-diameter, 71.12-mm-long, ogive-nose steel projectiles and 254-mm-diameter, 6061-T6511 aluminum targets. The projectiles were made from vacuum-are remelted (VAR) 4340 steel (R-C 38) and AerMet 100 steel (R-C 53), had a nominal mass of 0.021 kg, and were launched using a powder gun or a two-stage, light gas gun to striking velocities between 0.5 and 3.0 km/s. Since the tensile yield strength of AerMet 100 (R-C 53) steel is about 1.5 times greater than VAR 4340 (R-C 38) steel, we were able to demonstrate the effect of projectile strength on ballistic performance. Post-test radiographs of the targets showed three different regions of penetrator response as the striking velocity increased: (1) the projectiles remained rigid and visibly undeformed; (2) the projectiles deformed during penetration without nose erosion, deviated from the target centerline, and exited the side of the target or turned severely within the target; and (3) the projectiles eroded during penetration and lost mass. To show the effect of projectile strength, we present depth-of-penetration data as a function of striking velocity for both types of steel projectiles at striking velocities ranging from 0.5 and 3.0 km/s. In addition, we show good agreement between the rigid-projectile penetration data and a cavity-expansion model. (C) 1999 Elsevier Science Ltd. All rights reserved.