超高速长杆弹对岩石侵彻、地冲击效应理论与实验研究

doi:10.13722/j.cnki.jrme.2017.1348

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摘要针对超高速动能弹侵彻、地冲击效应研究现状，指出超高速对地打击效应研究中存在的问题。利用流体弹塑性内摩擦侵彻理论对流体动力模型进行研究，阐明超高速动能弹与常规钻地弹侵彻的本质联系与区别，界定超高速侵彻速度内涵范围。研究表明：随弹体侵彻速度增加，靶体介质发生了从弹塑性状态–内摩擦拟流体–流体动力状态的转换，从而呈现出弹体质量磨蚀作用所致的侵彻深度逆转、弹体侵蚀作用所致侵彻深度趋向极限等超高速侵彻特征力学现象。此外，还给出岩石中超高速侵彻深度、成坑范围计算方法和公式。

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	王明洋1
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	邱艳宇1
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	李杰2
	李海波3
	赵章泳2

关键词 ：岩石力学, 超高速动能弹, 高压状态方程, 流体弹塑性理论, 成坑效应

Abstract：The problems of hyper speed impact effect on the ground are pointed out in this paper regarding the penetration and ground impact effects of hyper speed projectile. The theory of elastic-plastic fluid and internal friction penetration was applied to study the hydrodynamic model，so as to expound the essential relationship and difference between the penetrations of hyper speed projectile and conventional ground penetrating bomb，and also to define the range of the speed of hyper speed penetration. It was found that with the increasing of penetration speed，the target medium was transformed from the elastic-plastic state to the internal friction state，then to the fluid dynamic state. The mechanical phenomena of hyper speed penetration characteristics were also presented，such as the penetration depth reversal due to the mass abrasion of projectile，and the penetration depth tending to the limit as a result of the projectile erosion. The methods to calculate the depth and crater range of hyper speed penetration were presented.

Key words： rock mechanics hypervelocity kinetic energy projectile state equation under high pressure fluid elastic-plastic theory crater effect

引用本文:

王明洋1，2，邱艳宇1，2，李杰2，李海波3，赵章泳2. 超高速长杆弹对岩石侵彻、地冲击效应理论与实验研究[J]. 岩石力学与工程学报, 2018, 37(3): 564-572.
WANG Mingyang1，2，QIU Yanyu1，2，LI Jie2，LI Haibo3，ZHAO Zhangyong2. Theoretical and experimental study on penetration in rock and ground impact effects of long rod projectiles of hyper speed. , 2018, 37(3): 564-572.

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http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2017.1348 或 http://www.rockmech.org/CN/Y2018/V37/I3/564

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