Consumption work of GH4169 spacer plates in positive impact by blunt rigid projectiles

SUN Yongzhuang; LYU Zhongjie; HUANG Fenglei; LIU Yan

doi:10.11883/bzycj-2019-0457

Volume 40 Issue 8

Aug. 2020

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SUN Yongzhuang, LYU Zhongjie, HUANG Fenglei, LIU Yan. Consumption work of GH4169 spacer plates in positive impact by blunt rigid projectiles[J]. Explosion And Shock Waves, 2020, 40(8): 083302. doi: 10.11883/bzycj-2019-0457

Citation:

SUN Yongzhuang, LYU Zhongjie, HUANG Fenglei, LIU Yan. Consumption work of GH4169 spacer plates in positive impact by blunt rigid projectiles[J]. Explosion And Shock Waves, 2020, 40(8): 083302. doi: 10.11883/bzycj-2019-0457

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Consumption work of GH4169 spacer plates in positive impact by blunt rigid projectiles

doi: 10.11883/bzycj-2019-0457

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

Received Date: 2019-12-04
Rev Recd Date: 2020-03-23

Available Online: 2020-07-25

Publish Date: 2020-08-01

Abstract

Abstract

At the initial velocity range of 380~680 m/s, positive impact on GH4169 spacer plates by 8 mm diameter tungsten spheres was performed, measuring the initial velocity, residual velocity and deflection. It is obvious that the first plate is mainly subjected to shear damage and ejected cup-shaped plug, the third plate is mainly subjected to tensile failure, and the deflection of the third plate is significantly greater than the first plate. The calculation formula for the consumption work of the spacer plates is established, the consumption work of each plates impacted by projectiles is calculated by combining the shear plugging model and the plug velocity model. The results show that the unit area density consumption work of the second and third plates is much higher than that of the first plate, which is closely related to the deformation and failure modes of the plates. Consumption work can be used to quantitatively describe the ballistic resistance of each plate.
- spacer plates,
- consumption work,
- plug velocity,
- ballistic resistance,
- ballistic limit

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References(23)

References

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