卵形头部弹丸侵彻混凝土的研究

周宁; 任辉启; 沈兆武; 何祥; 刘瑞朝

doi:10.11858/gywlxb.2007.03.004

卵形头部弹丸侵彻混凝土的研究

doi: 10.11858/gywlxb.2007.03.004

1.
中国科学技术大学力学与机械工程系，安徽合肥 230026；
2.
洛阳水利工程研究所，河南洛阳 471023

详细信息

通讯作者:
周宁

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出版历程
- 收稿日期: 2006-10-08
- 修回日期: 2007-01-23
- 发布日期: 2007-09-05

Study on Penetration of Concrete Targets by Ogive-Nose Steel Projectile

1.
Department of Modern Mechanics, University of Science and Technology of China, Hefei 230026, China;
2.
Luoyang Institute of Hydraulical Engineer, Luoyang 471023, China

More Information

Corresponding author: ZHOU Ning

摘要

摘要: 用头部曲率半径为4.0、直径100 mm、质量为25 kg的卵形弹丸对混凝土进行侵彻实验，并测试了炮膛内和侵彻过程中弹丸的加速度时程曲线。实验用混凝土靶的抗压强度为35 MPa，密度为2 450 kg/m3，有3 m3 m3 m和2 m2 m2 m两种尺寸。测试弹丸发射和侵彻过程加速度的记录系统刚性固结于弹丸内部。弹丸侵彻初速在310 m/s至632 m/s之间，弹丸的峰值过载在12 000 g到22 000 g之间。实验后将测试的侵彻深度、侵彻过程弹丸的加速度时程曲线与用Forrestal 的理论模型计算得到的结果进行了比较分析。实验结果对认识侵彻的整个过程和相关弹药的设计有重大意义。
- 爆炸力学 /
- 侵彻 /
- 混凝土靶 /
- 卵形头部弹丸 /
- 加速度时程曲线测试
Abstract: We conducted acceleration-time measurement of penetration experiments in targets with 100 mm diameter, 4.0 caliber-radius-head, 25 kg projectiles. The 3 m3 m3m and 2 m2 m2m concrete targets had an nominal unconfined compressive strength of 35 MPa and density 2 450 kg/m3. Projectiles were designed to contain a single-channel acceleration data recorder, so we recorded accelerations in the bore of the gun and accelerations during the penetration event. A 100 mm diameter powder gun launched the 25 kg projectiles to striking velocities between 310 and 632 m/s. We compared the measured penetration depths and acceleration-time data with the calculated results using Forrestal formula. The calculated results are in good agreement with rigid-body acceleration measurements for the rise times and peak plateau responses. The acceleration-time data of projectiles can be helpful for devising armour-piercing projectile and defense engineering.
- explosion mechanics /
- penetration /
- concrete target /
- ogive-nose projectile /
- acceleration-time measurement

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参考文献(10)

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