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Journal of Projectiles, Rockets, Missiles and Guidance >

2019 , Vol. 39 >Issue 3: 81 - 85,89

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2019.03.019

The Influence of nose shape to Dynamic damage of PBX Charge During the Penetration Process

  • SHI Xiaohai ,
  • YU Chunxiang ,
  • DAI Kaida ,
  • CUI Yunxiao ,
  • CHEN Hua
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  • 1 Institute of System Engineering, CAEP, Sichuan Mianyang 621000, China
    2 State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
    3 Northwest Institute of Nuclear Technology, Xi'an 710024, China
    4 No. 96901 Unit, Beijing 100000, China

Received date: 2018-05-09

  Online published: 2025-05-20

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Abstract

Nose shape has significant influence on dynamic mechanical response of charge during penetration. In the authors' work, a user defined material model based on cohesive crack model is constructed to directly simulate the penetration of concrete with LS-DYNA, and the damage evolution process of charge is calculated. The influence of caliber-radius-head of ogival nose warhead is analyzed by element crack width and volume fraction of visible crack. The results show that the variation of nose shape for ogival nose warhead has significant influence on dynamic damage, controlling caliber-radius-head of warhead is beneficial to reduce charge damage.

Key words： nose shape; penetration; PBX charge; dynamic damage; the cohesive crack model; numerical simulation

Cite this article

SHI Xiaohai , YU Chunxiang , DAI Kaida , CUI Yunxiao , CHEN Hua . The Influence of nose shape to Dynamic damage of PBX Charge During the Penetration Process[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2019 , 39(3) : 81 -85,89 . DOI: 10.15892/j.cnki.djzdxb.2019.03.019

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References

[1]
YANKELEVSKY D Z，GLUCK J．Nose shape effect on high velocity soil penetration[J]．International Journal of Mechanical Sciences，1980，22(5): 297-311．
[2]
BØRVIK T，LANGSETH M，HOPPERSTAD O S，et al．Perforation of 12 mm thick steel plates by 20 mm diameter projectiles with flat，hemispherical and conical noses: Part I: Experimental study[J]．International Journal of Impact Engineering，2002，27(1): 19-35．
[3]
BØRVIK T，HOPPERSTAD O S，BERSTAD T，et al．Perforation of 12 mm thick steel plates by 20 mm diameter projectiles with flat，hemispherical and，conical noses Part II: numerical simulations[J]．International Journal of Impact Engineering，2002，27(1): 37-64．
[4]
HILLERBORG A, MODEER M, PETERSSON PE. Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements [J]. Cement and Concrete Research, 1976(6):773-782.
[5]
PLANAS J, ELICES M, GUINEA GV, et al. Generalizations and specializations of cohesive crack models [J]. Engineering Fracture Mechanics, 2003, 70(14):1759–1776.
[6]
PLANAS J, ELICES M. Asymptotic analysis of a cohesive crack: II Influence of the softening curve [J]. International Journal of Fracture, 1993, 64(3):221-237.
[7]
PLANAS J, ELICES M. Asymptotic analysis of a cohesive crack: I Theoretical background [J]. International Journal of Fracture, 1992, 55(2):153–177.
[8]
GáLVEZ JC, PLANAS J, SANCHO JM, et al. An embedded cohesive crack model for finite element analysis of quasi-brittle materials [J]. Engineering Fracture Mechanics, 2013, 109:369-386.
[9]
REYES E, GáLVEZ JC, CASATI MJ, et al. An embedded cohesive crack model for finite element analysis of brickwork Masonry fracture [J]. Engineering Fracture Mechanics, 2009, 76(12):1930–1944.
[10]
SANCHO JM, PLANAS J, CENDóN DA, et al. An embedded crack model for fnite element analysis of concrete fracture [J]. Engineering Fracture Mechanics, 2007, 74(1/2):75-86.
[11]
石啸海, 戴开达, 陈鹏万,等. 战斗部侵彻过程中 PBX 装药动态损伤数值模拟[J]. 中国测试, 2016. 42 (10): 138- 142.
[12]
崔云霄, 陈鹏万, CENDóN DA, 等. 基于内聚裂纹模型的高聚物粘结炸药模拟材料动态巴西实验的数值模拟[J]. 兵工学报, 2016. 37 (9): 1639- 1645.
[13]
陈小伟. 动能深侵彻弹的力学设计(I):侵彻/穿甲理论和弹体壁厚分析[J]. 爆炸与冲击, 2005. 25 (6): 499- 505.
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