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When the penetration velocity is greater than the sound speed, a shock wave will be formed which leads the state parameters of the material change after shock wave front. As the shock wave affects the process of jet penetration and crater growth, Bernoulli equation can not be used directly across shock wave front. On the basis of considering the influence of shock wave during jet penetration, the mechanical properties of axial penetration and radial crater growth are analyzed in the process of shaped charge jet penetration, and the propagation and strength degradation of shock wave are assumed. The penetration model is established for the two cases of the penetration velocities greater or less than the sound speed of target respectively and a new equation of shaped charge jet penetration and radial crater growth is proposed. Compared with Szendrei-Held model, the results show that this model is more suitable for the experimental data of Held et al. Moreover, the influence of shock wave on axial penetration is much smaller than that on the radial crater growth.

, authors=Qiang-Qiang XIAO, Zheng-Xiang HUANG, Xiao-Hui GU, authorsList=Qiang-Qiang XIAO, Zheng-Xiang HUANG, Xiao-Hui GU, authorCompany=null, correspAuthors=Zheng-Xiang HUANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1324026946543288826, articleId=1324026945847034360, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=冲击波影响下的聚能射流侵彻扩孔方程, columnId=0, journalTitle=高压物理学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

当聚能射流侵彻速度大于靶板声速时,由于冲击波的产生导致波阵面后材料的状态参数发生改变,影响聚能射流的侵彻扩孔过程,致使波阵面前后不能直接应用伯努利方程求解。在考虑侵彻过程中冲击波影响的基础上,对射流轴向侵彻和径向扩孔的力学特性进行了分析,并对冲击波的传播和衰减进行了假设,着重探讨侵彻速度大于靶板声速时冲击波的影响。针对侵彻速度大于和小于靶板声速两种情况,建立了相应的侵彻模型,提出了一个新的聚能射流侵彻扩孔方程。将该方程与Szendrei-Held模型进行了比较,结果表明,新模型更符合Held等人的实验数据,冲击波对轴向侵彻的影响远小于对径向扩孔的影响。

, authors=肖强强, 黄正祥, 顾晓辉, authorsList=肖强强, 黄正祥, 顾晓辉, authorCompany=null, correspAuthors=黄正祥, authorNote=

肖强强(1985-),男,博士研究生,主要从事高效毁伤和终点效应研究. E-mail:

, correspAuthorsNote=
黄正祥(1967-),男,博士,教授,主要从事弹药战斗部工程设计及弹丸终点效应研究. E-mail:
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肖强强(1985-),男,博士研究生,主要从事高效毁伤和终点效应研究. E-mail:

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肖强强(1985-),男,博士研究生,主要从事高效毁伤和终点效应研究. E-mail:

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冲击波影响下的聚能射流侵彻扩孔方程
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肖强强 , 黄正祥 , 顾晓辉
高压物理学报 | 2011,25(4): 333-338
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高压物理学报 | 2011 , 25 (4) : 333 -338
冲击波影响下的聚能射流侵彻扩孔方程
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肖强强 , 黄正祥 , 顾晓辉
作者信息
  • 南京理工大学机械工程学院,江苏 南京 210094
通讯作者:
黄正祥(1967-),男,博士,教授,主要从事弹药战斗部工程设计及弹丸终点效应研究. E-mail:
作者简介:

肖强强(1985-),男,博士研究生,主要从事高效毁伤和终点效应研究. E-mail:

Equation of Penetration and Crater Growth by Shaped Charge Jet under the Influence of Shock Wave
Qiang-Qiang XIAO , Zheng-Xiang HUANG , Xiao-Hui GU
Affiliations
  • School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
出版时间: 2011-08-15
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当聚能射流侵彻速度大于靶板声速时,由于冲击波的产生导致波阵面后材料的状态参数发生改变,影响聚能射流的侵彻扩孔过程,致使波阵面前后不能直接应用伯努利方程求解。在考虑侵彻过程中冲击波影响的基础上,对射流轴向侵彻和径向扩孔的力学特性进行了分析,并对冲击波的传播和衰减进行了假设,着重探讨侵彻速度大于靶板声速时冲击波的影响。针对侵彻速度大于和小于靶板声速两种情况,建立了相应的侵彻模型,提出了一个新的聚能射流侵彻扩孔方程。将该方程与Szendrei-Held模型进行了比较,结果表明,新模型更符合Held等人的实验数据,冲击波对轴向侵彻的影响远小于对径向扩孔的影响。

聚能射流  /  侵彻扩孔  /  冲击动力学  /  冲击波

When the penetration velocity is greater than the sound speed, a shock wave will be formed which leads the state parameters of the material change after shock wave front. As the shock wave affects the process of jet penetration and crater growth, Bernoulli equation can not be used directly across shock wave front. On the basis of considering the influence of shock wave during jet penetration, the mechanical properties of axial penetration and radial crater growth are analyzed in the process of shaped charge jet penetration, and the propagation and strength degradation of shock wave are assumed. The penetration model is established for the two cases of the penetration velocities greater or less than the sound speed of target respectively and a new equation of shaped charge jet penetration and radial crater growth is proposed. Compared with Szendrei-Held model, the results show that this model is more suitable for the experimental data of Held et al. Moreover, the influence of shock wave on axial penetration is much smaller than that on the radial crater growth.

shaped charge jet  /  penetration and crater growth  /  impact dynamics  /  shock wave
肖强强, 黄正祥, 顾晓辉. 冲击波影响下的聚能射流侵彻扩孔方程. 高压物理学报, 2011 , 25 (4) : 333 -338 .
Qiang-Qiang XIAO, Zheng-Xiang HUANG, Xiao-Hui GU. Equation of Penetration and Crater Growth by Shaped Charge Jet under the Influence of Shock Wave[J]. Chinese Journal of High Pressure Physics, 2011 , 25 (4) : 333 -338 .

参考文献 引证文献
排序方式:
[1]
Szendrei T. Analytical Model of Crater Formation by Jet Impact and Its Application to Calculation of Penetration Curves and Hole Profiles[A]//Proceedings of the 7th International Symposium on Ballistics[C]. Hague, Netherlands, 1983: 575-583.
[2]
Held M. Verification of the Equation for Radial Crater Growth by Shaped Charge Jet Penetration[J]. Int J Impact Eng, 1995, 17(1-3): 387-398.
[3]
Held M, Huang N S, Jiang D, et al. Determination of the Crater Radius as a Function of Time of a Shaped Charge Jet That Penetrates Water[J]. Propell Explos Pyrot, 1996, 21(2): 64-69.
[4]
Held M, Kozhushko A A. Radial Crater Growing Process in Different Materials with Shaped Charge Jets[J]. Propell Explos Pyrot, 1999, 24(6): 339-342.
[5]
Meyers M A. Dynamic Behavior of Materials[M]. Translated by Huang F L. Beijing: National Defence Industry Press, 2006: 79-82. (in Chinese)
Meyers M A. 材料的动力学行为[M]. 黄风雷, 译. 北京: 国防工业出版社, 2006: 79-82.
[6]
Grady D. Shock Equation of State Properties of Concrete[A]//The 4th International Conference on Structures under Shock and Impact[C]. Udine, Italy, 1996.
2011年第25卷第4期
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  • 接收时间:2010-04-06
  • 首发时间:2026-11-02
  • 出版时间:2011-08-15
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  • 收稿日期:2010-04-06
  • 修回日期:2010-06-30
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    南京理工大学机械工程学院,江苏 南京 210094

通讯作者:

黄正祥(1967-),男,博士,教授,主要从事弹药战斗部工程设计及弹丸终点效应研究. E-mail:
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2种不同金属材料的力学参数
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genus
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species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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