[an error occurred while processing this directive] [an error occurred while processing this directive] [an error occurred while processing this directive]
[an error occurred while processing this directive]

Journal of Projectiles, Rockets, Missiles and Guidance >

2021 , Vol. 41 >Issue 2: 72 - 77

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2021.02.016

Numerical Simulation of Dynamic Spherical Cavity Expansion for Reinforced Concrete Targets

  • DENG Yongjun 1, 2 ,
  • LIU Yangcun 1, 2 ,
  • YAO Yong 1, 2
Expand
  • 1 Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province,Sichuan Mianyang 621000,China
  • 2 School of Civil Engineering and Architecture,Southwest University of Science and Technology,Sichuan Mianyang 621000,China

Received date: 2020-03-20

  Online published: 2025-02-25

Fold

Abstract

In this paper, LS-DYNA finite element software is used to simulate the dynamic cavity expansion process of reinforced concrete targets. For different reinforcement ratios, the relationship between the expansion pressure and the expansion velocity at the concrete cavity boundary, and the distribution of radial stress at a certain moment are obtained. Then the influences of reinforcement ratios on the dynamic cavity expansion process are investigated. It is found that the reinforcing bars effectively restrain the surrounding concrete, reduce the size of each region of the concrete, and decline the expansion speed of the concrete cavity boundary.

Key words： reinforced concrete; cavity expansion; confinement effect; numerical simulation

Cite this article

DENG Yongjun , LIU Yangcun , YAO Yong . Numerical Simulation of Dynamic Spherical Cavity Expansion for Reinforced Concrete Targets[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2021 , 41(2) : 72 -77 . DOI: 10.15892/j.cnki.djzdxb.2021.02.016

[an error occurred while processing this directive]

References

Publishing order | Descend order by publishing year | Descend order by cited within
[1]
FORRESTAL M J, TZOU D Y. A spherical cavity-expansion penetration model for concrete targets[J]. International Journal of Solids and Structures, 1997, 34(31/32): 4127-4146.

[2]
FORRESTAL M J, CARGILE J D, TZOU R D Y. Penetration of concrete targets: DE 93-019076[R]. Washington D.C.: U.S. Department of Energy, 1993.

[3]
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.

[4]
FORRESTAL M J, FREW D J, HICKERSON J P, et al. Penetration of concrete targets with deceleration-time measurements[J]. International Journal of Impact Engineering, 2003, 28: 479-497.

[5]
ROSENBERG Z, DEKEL E. A numerical study of the cavity expansion process and its application to long-rod penetration mechanics[J]. International Journal of Impact Engineering, 2008, 35(3): 147-154.

[6]
ROSENBERG Z, DEKEL E. Analytical solution of the spherical cavity expansion process[J]. International Journal of Impact Engineering, 2009, 36(2): 193-198.

[7]
王一楠. 动能弹高速侵彻混凝土机理研究[D]. 北京: 北京理工大学, 2010.

[8]
李志康, 黄风雷. 混凝土材料的动态空腔膨胀理论[J]. 爆炸与冲击, 2009, 29(1):95-100.

[9]
邓勇军, 陈小伟, 姚勇. 钢筋混凝土靶侵彻过程中空腔膨胀响应分区研究[J]. 中国科学(物理学力学天文学), 2020, 50(2):30-47.

Options
Outlines

/

〈 〉

[an error occurred while processing this directive]