Analytical model for attitude deflection of rigid projectile during oblique perforation of concrete targets

DUAN Zhuoping; LI Shurui; MA Zhaofang; OU Zhuocheng; HUANG Fenglei

doi:10.11883/bzycj-2018-0411

Volume 39 Issue 6

Jun. 2019

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DUAN Zhuoping, LI Shurui, MA Zhaofang, OU Zhuocheng, HUANG Fenglei. Analytical model for attitude deflection of rigid projectile during oblique perforation of concrete targets[J]. Explosion And Shock Waves, 2019, 39(6): 063302. doi: 10.11883/bzycj-2018-0411

Citation:

DUAN Zhuoping, LI Shurui, MA Zhaofang, OU Zhuocheng, HUANG Fenglei. Analytical model for attitude deflection of rigid projectile during oblique perforation of concrete targets[J]. Explosion And Shock Waves, 2019, 39(6): 063302. doi: 10.11883/bzycj-2018-0411

Citation:

DUAN Zhuoping, LI Shurui, MA Zhaofang, OU Zhuocheng, HUANG Fenglei. Analytical model for attitude deflection of rigid projectile during oblique perforation of concrete targets[J]. Explosion And Shock Waves, 2019, 39(6): 063302. doi: 10.11883/bzycj-2018-0411

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Analytical model for attitude deflection of rigid projectile during oblique perforation of concrete targets

doi: 10.11883/bzycj-2018-0411

1.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
2.
Beijing institute of Technology, Zhuhai, Zhuhai 519088, Guangdong, China

Received Date: 2018-10-22
Rev Recd Date: 2018-12-29

Available Online: 2019-05-25

Publish Date: 2019-06-01

Abstract

Abstract

In the present study we developed an analytical model to describe the attitude deflection of the rigid projectile obliquely penetrating into concrete targets. To improve on the previous models, we took the effect of the inertia moment of the projectile into account and assumed anew the shape of the plug formed on the rear surface of the concrete target with regard to the experimental perforation characteristics, and introduced a second attitude deflection mechanism into the shear plugging stage. Moreover, we proposed to classify concrete targets into three types, i.e. thin, medium and thick. The calculated results under different perforation situations accorded well with the experimental data, indicating the validity of our analytical model in predicting the projectile attitude during the oblique perforation of concrete targets.
- rigid projectile,
- oblique perforation,
- penetration,
- concrete target,
- attitude deflection

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References(15)

References

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