A dynamic cavity-expansion penetration model of compressible elastic-plastic response for reinforced concrete targets

DENG Yongjun; SONG Wenjie; CHEN Xiaowei; YAO Yong

doi:10.11883/bzycj-2017-0043

Volume 38 Issue 5

Jul. 2018

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DENG Yongjun, SONG Wenjie, CHEN Xiaowei, YAO Yong. A dynamic cavity-expansion penetration model of compressible elastic-plastic response for reinforced concrete targets[J]. Explosion And Shock Waves, 2018, 38(5): 1023-1030. doi: 10.11883/bzycj-2017-0043

Citation:

DENG Yongjun, SONG Wenjie, CHEN Xiaowei, YAO Yong. A dynamic cavity-expansion penetration model of compressible elastic-plastic response for reinforced concrete targets[J]. Explosion And Shock Waves, 2018, 38(5): 1023-1030. doi: 10.11883/bzycj-2017-0043

Citation:

DENG Yongjun, SONG Wenjie, CHEN Xiaowei, YAO Yong. A dynamic cavity-expansion penetration model of compressible elastic-plastic response for reinforced concrete targets[J]. Explosion And Shock Waves, 2018, 38(5): 1023-1030. doi: 10.11883/bzycj-2017-0043

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A dynamic cavity-expansion penetration model of compressible elastic-plastic response for reinforced concrete targets

doi: 10.11883/bzycj-2017-0043

DENG Yongjun^{1, 2, 3},
SONG Wenjie⁴,
CHEN Xiaowei^{3, 5
,
,},
YAO Yong^{2, 3}

1.
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China
2.
School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621000, Sichuan, China
3.
Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Southwest Universtiy of Science and Technology, Mianyang 621000, Sichuan, China
4.
Engineering Mechanics and Engineering Sciences, Peking University, Beijing 100871, China
5.
Advanced Research Institute of Multisciplinaty Science, Beijing Insititute of Technology, Beijing 100081, China

Received Date: 2017-02-15
Rev Recd Date: 2017-03-31
Publish Date: 2018-09-25

Abstract

Abstract

In the present paper, based on the compressible elastic-plastic response penetration model of plain concrete proposed by Forrestal, a dynamic spherical cavity-expansion penetration model for reinforced concrete targets is constructed with considering the hoop confinement effect derived from reinforcing bars in the crushed region. The theoretical solution of radial stress for the compressible reinforced concrete is achieved through introducing the reinforcement ratio, i.e., the volume fraction of rebars in the concrete target. The effects of reinforcement ratio on radial stress and size of response regions are discussed. The results show that the hoop confinement effect derived from reinforcing bars changes the size of each region and improves the radial stress at cavity surface.
- dynamic cavity-expansion,
- reinforced concrete,
- radial stress,
- volume reinforcement ratio

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References(19)

References

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