Experimental and numerical study on normal penetration of a projectile into a reinforced concrete target

DENG Yongjun; CHEN Xiaowei; ZHONG Weizhou; HE Liling

doi:10.11883/bzycj-2019-0001

Volume 40 Issue 2

Jan. 2020

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DENG Yongjun, CHEN Xiaowei, ZHONG Weizhou, HE Liling. Experimental and numerical study on normal penetration of a projectile into a reinforced concrete target[J]. Explosion And Shock Waves, 2020, 40(2): 023101. doi: 10.11883/bzycj-2019-0001

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DENG Yongjun, CHEN Xiaowei, ZHONG Weizhou, HE Liling. Experimental and numerical study on normal penetration of a projectile into a reinforced concrete target[J]. Explosion And Shock Waves, 2020, 40(2): 023101. doi: 10.11883/bzycj-2019-0001

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Experimental and numerical study on normal penetration of a projectile into a reinforced concrete target

doi: 10.11883/bzycj-2019-0001

DENG Yongjun^{1, 2
,},
CHEN Xiaowei^{3
,
,},
ZHONG Weizhou^{1, 4},
HE Liling^{1, 4}

1.
Shock and Vibration of Engineering Materials and Structures Key laboratory of Sichuan Province, Southwest University of Sience and Technology, Mianyang 621010, Sichuan, China
2.
School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
3.
Advanced Research Institute for Multidisciplinary Science, Beijing Institute of Technology, Beijing 100081, China
4.
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang, 621999, Sichuan, China

Received Date: 2019-01-02
Rev Recd Date: 2019-04-29
Publish Date: 2020-02-01

Abstract

Abstract

A series of experiments were carried out on a 156-mm-caliber oval projectile penetrating into an reinforced concrete target. With the pre-arranged pressure sensors, the pressures at different positions in the concrete targets were obtained during the penetration. Combined with numerical simulation, the damaged regions in the concrete targets and the stress states of the steel bars at different positions were analyzed. The results show that the pressures in the concrete nearby penetration trajectories are highest and the corresponding peak pulses are obvious. With the increases of the distances from the penetration trajectories, the peak pulses decrease and the pulse widths increase, the shape of the stress pulses changes from peak to relatively flat waveforms. The stress of the steel bar in the crushed region reaches its yield strength, the steel in the cracked region is in an elastic state, and the stress of the steel bar in the elastic region and the undisturbed region can be neglected.
- reinforced concrete,
- penetration test,
- numerical simulation,
- pressure distribution,
- steel stress

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References(17)

References

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