|Table of Contents|

Influencing factors of penetration efficiency for projectiles’ highspeed penetration into concrete targets

《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

Issue:
2014年03期
Page:
390-
Research Field:
Publishing date:

Info

Title:
Influencing factors of penetration efficiency for projectiles’ highspeed penetration into concrete targets
Author(s):
Song Meili1; Wang Xiaoming1; Zhao Xifang2; Li Wenbin1; Zhang Zhaojun1
1.Ministerial Key Laboratory of ZNDY,NUST,Nanjing 210094,China; 2.Nanjing Research Institute of Electronics Technology,Nanjing 210039,China
Keywords:
projectiles; highspeed penetration; concrete targets; penetration efficiency; penetration depth; impact velocity; concrete uniaxial compressive strength; warhead shape factor; projectile aspect ratios; projectile materials
PACS:
O385
DOI:
-
Abstract:
In order to study the variation of the maximum penetration depth with velocity when projectiles penetrate into concrete targets in highspeed,the concept of penetration efficiency is defined as the ratio of penetration depth to velocity.For a certain projectile and target system,the projectile’s impact velocity limit corresponding to the maximum penetration efficiency is researched by experimental data and numerical simulations.The inference of projectiles’ impact velocity on the penetration efficiency assumes a parabola.The penetration efficiency increases first and then decreases with the increase of the velocity.Before the penetration efficiency meets the limit,the penetration depth increases greatly with the increase of the velocity.When the impact velocity limit corresponding to the maximum penetration efficiency increases by 5% approximately,the penetrating depth and ability achieve the highest.The concrete uniaxial compressive strength,warhead shape factor,projectile aspect ratio,strength and machinery functions of projectile materials influence the penetration efficiency significantly.

References:

[1]Nelson R W.Lowyield earthpenetrating nuclear weapons[J].Science and Global Security,2002,10:1-20.
[2]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(5):465-476.
[3]Heider N,Klomfass A,Salk M.Penetration performance of geopenetrators in the high velocity region[A].24th International Symposium on Ballistics[C].New Orleans,LA,USA:[s.n.].2008:1-9.
[4]练兵,蒋建伟,门建兵,等.高速长杆弹对混凝土靶侵彻规律的仿真分析[J].高压物理学报,2010,24(5):377-382.
Lian Bing,Jiang Jianwei,Men Jianbing,et al.Simulation analysis on law of penetration of longrod projectiles with high speed into concrete[J].Chinese Journal of High Pressure Physics,2010,24(5):377-382.
[5]Cinnamon J D,Jones S E,House J W,et al.A onedimensional analysis of rod penetration[J].International Journal of Impact Engineering,1992,12(2):145-166.
[6]杨建超,刘瑞朝,何翔,等.弹体高速侵彻混凝土特性研究[A].反深层/多层坚固目标高毁损伤技术专题学术研讨会论文集[C].海南:战斗部专业技术组,2010:155-160.
[7]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.
[8]何丽灵,陈小伟,夏源明.侵彻混凝土弹体磨蚀的若干研究进展[J].兵工学报,2010,31(7):950-966.
He Liling,Chen Xiaowei,Xia Yuanming.A review on the mass loss of projectile[J].Acta Armamentarii,2010,31(7):950-966.
[9]汪维,张舵.巨型钻地弹(MOP)侵彻半无限厚混凝土靶板数值模拟分析[A].反深层/多层坚固目标高毁损伤技术专题学术研讨会论文集[C].海南:战斗部专业技术组,2010:32-36.

Memo

Memo:
-
Last Update: 2014-06-30