超高速弹对花岗岩侵彻深度逆减现象的理论与实验研究

doi:10.13722/j.cnki.jrme.2017.0584

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (584 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要利用100/30 mm二级轻气炮开展1.2～2.4 km/s着速下卵形长杆高强钢弹对花岗岩的侵彻效应实验研究，获得弹/靶宏观破坏形态，测量侵彻深度和侵彻后弹体回收质量等参数。实验结果表明：随着侵彻速度增加，侵彻深度呈现先线性增大后急剧降低再缓慢增长的三段式变化趋势，分别对应于3种不同的侵彻机制——刚性侵彻，半流体侵彻和流体侵彻。结合半流体侵彻阶段弹体半径微增而弹体质量骤减的实验现象，提出考虑弹体质量损失的侵深计算模型，并与实验结果相印证；分析弹体质量损失对弹体侵彻过程的影响，揭示超高速弹对花岗岩侵彻深度逆减现象的内在机制。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	李干1
	2
	宋春明2
	邱艳宇1
	王明洋1
	2

关键词 ：岩石力学, 花岗岩, 长杆弹, 超高速侵彻, 质量损失, 侵深逆减

Abstract：The penetrations of long-rod steel projectiles of high-strength at 1.2–2.4 km/s into granite targets using the two-stage light-gas gun of 100/30 mm are carried out to investigate the effect and mechanisms of penetration. The macro-damage of the targets and projectiles，the penetration depth and the mass of the recovered projectiles are obtained. The penetration depth increases firstly，then decreases sharply and finally increases gently as the increasing of striking velocity，which correspond to the rigid body penetration，semi-hydrodynamic penetration，and hydrodynamic penetration respectively. In the stage of semi-hydrodynamic penetration，the mass of the recovered projectiles decreases rapidly，while the projectile diameter changes slightly. A model for calculating the penetration depth taking account of the loss of projectile mass is presented. The calculated results fit the experiment data well. The influence of the loss of projectile mass on penetration is analyzed，and the internal mechanism of the reduction phenomena of penetration depth is revealed.

Key words： rock mechanics granite long-rod projectile hyper-velocity penetration mass loss penetration depth reduction

引用本文:

李干1，2，宋春明2，邱艳宇1，王明洋1，2. 超高速弹对花岗岩侵彻深度逆减现象的理论与实验研究[J]. 岩石力学与工程学报, 2018, 37(1): 60-66.
LI Gan1，2，SONG Chunming2，QIU Yanyu1，WANG Mingyang1，2. Theoretical and experimental studies on the phenomenon of reduction in penetration depth of hyper-velocity projectiles into granite. , 2018, 37(1): 60-66.

链接本文:

http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2017.0584 或 http://www.rockmech.org/CN/Y2018/V37/I1/60

[8]	高光发. 长杆弹侵彻半无限靶板流体动力学理论[J]. 科技导报，2016，34(2)：287-298.(GAO Guangfa. Hydro-dynamics theory for long-rod projectile penetrating semi-infinite target：reviews and studies[J]. Science and Technology Review，2016，34(2)：287-298.(in Chinese))
[6]	YANKELEVSKY D Z. Resistance of a concrete target to penetration of a rigid projectile-revisited[J]. International Journal of Impact Engineering，2017，106：30-43.
[3]	张庆明，黄风雷. 超高速碰撞动力学引论[M]. 北京：科学出版社，2000：1-107.(ZHANG Qinming，HUANG Fenglei. Introduction of hyper velocity impact dynamics[M]. Beijing：Science Press，2000：
[9]	FORRESTAL M J，FREW D J，HANCHAK S J，et al. Penetration of grout and concrete targets with ogive-nose steel projectiles[J]. International Journal of Impact Engineering，1996，18：465-476.
[16]	SEGLETES S B. The erosion transition of tungsten-alloy long rods into aluminum targets[J]. International Journal of Solids and Structures，2007，44(7/8)：2 168-2 191.
[19]	ZHANG D Z，ZHANG X R，LIN J D，et al. Penetration experiments for normal impact into granite targets with high-strength steel prokectile[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(9)：1 612-1 618.
[4]	程怡豪，王明洋，施存程，等. 大范围着速下混凝土抗冲击试验研究综述[J]. 浙江大学学报：工程科学版，2015，49(4)：616-625.(CHENG Yihao，WANG Mingyang，SHI Cuncheng，et al. Review of experimental investigation of concrete target to resist missile impact in large velocity range[J]. Journal of Zhejiang University：Engineering Science，2015，49(4)：616-625.(in Chinese))
[14]	WICKERT M. Penetration data for a medium caliber tungsten sinter alloy penetrator into Aluminum alloy 7020 in the velocity regime from 250 m/s to 1 900 m/s[C]// Proceedings of the 23rd Int. Symp. Ballistics：Tarragona，Spain，2007：1 437-1 444.
[1]	张丽静，刘东升，于存贵，等. 高超声速飞行器[J]. 航空兵器，2010，(2)：13-16.(ZHANG Lijing，LIU Dongsheng，YU Chungui，et al. Hypersonic aircraft[J]. Aero Weaponry，2010，(2)：13-16.(in Chinese))
[10]	FREW D J，FORRESTAL M J，HANCHAK S J. Penetration experiments with limestone targets and ogive-nose steel projectiles[J]. Journal of Applied Mechanics，2000；67(4)：841-845.
[12]	FORRESTAL M J，PIEKUTOWSKI A J. Penetration experiments with 6061-T6511 aluminum targets and spherical-nose steel projectiles at striking velocities between 0.5 and 3.0 km/s[J]. International Journal of Impact Engineering，2000，24：57-67.
[20]	LOU J F，ZHANG Y G，WANG Z，et al. Long-rod penetration：the transition zone between rigid and hydrodynamic penetration modes[J]. Defence Technology，2014，10(2)：239-244.
[22]	MU Z C，WEI Z. An investigation on mass loss of ogival projectiles penetrating concrete targets[J]. International Journal of Impact Engineering，2011，38(8)：770-778.
1&	ndash;107.(in Chinese))
[7]	TATE A. A theory for the deceleration of long rods after impact[J]. Journal of the Mechanics and Physics of Solids，1967，15(6)：387-399.
[17]	WEN H M，LAN B. Analytical models for the penetration of semi-infinite targets by rigid，deformable and erosive long rods[J]. Acta Mechanica Sinica，2010，26(4)：573-583.
[2]	HARRY F. Hypervelocity then and now[J]. International Journal of Impact Engineering，1987，5(1)：1-11.
[5]	FORRESTAL M J，ALTMAN B S，CARGILE J D，et al. An empirical equation for penetration depth of ogive-nose projectiles into concrete targets[J]. International Journal of Impact Engineering，1994，15(4)：395-405.
[11]	SAVVATEEV A F，BUDIN A V，KOLIKOV V A，et al. High-speed penetration into sand[J]. International Journal of Impact Engineering，2001，26：675-681.
[13]	PIEKUTOWSKI A J，FORRESTAL M J，POORMON K L，et al. Penetration of 6061-T6511 aluminum targets by ogive-nose steel projectiles with striking velocities between 0.5 and 3.0 km/s[J]. International Journal of Impact Engineering，1999，23(1)：723-734.
[15]	CHEN X W，LI Q M. Transition from non-deformable projectile penetration to semi-hydrodynamic penetration[J]. Journal of Engineering Mechanics，ASCE，2004，130(1)：123-127.
[18]	ROSENBERG Z，DEKEL E. On the deep penetration of deforming long rods[J]. International Journal of Solids and Structures，2010，47(2)：238-250.
[21]	王明洋，谭可可，吴华杰，等. 钻地弹侵彻岩石深度计算新原理与方法[J]. 岩石力学与工程学报，2009，28(9)：1 863-1 869.(WANG Mingyang，TAN Keke，WU Huajie，et al. New method of calculation of projectile penetration into rock[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(9)：1 863-1 869.(in Chinese))
[23]	TATE A. A possible explanation for the hydrodynamic transition in high speed impact[J]. International Journal of Mechanical Sciences，1977，19(2)：121-123.