Numerical Study of the Oblique Perforation of Single Thin Metallic Plates

GUO Zitao; GUO Zhao; ZHANG Wei

doi:10.11858/gywlxb.20180503

Volume 32 Issue 4

Apr 2018

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Chinese Journal of High Pressure Physics > 2018 > 32(4): 045101.

GUO Zitao, GUO Zhao, ZHANG Wei. Numerical Study of the Oblique Perforation of Single Thin Metallic Plates[J]. Chinese Journal of High Pressure Physics, 2018, 32(4): 045101. doi: 10.11858/gywlxb.20180503

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GUO Zitao, GUO Zhao, ZHANG Wei. Numerical Study of the Oblique Perforation of Single Thin Metallic Plates[J]. Chinese Journal of High Pressure Physics, 2018, 32(4): 045101. doi: 10.11858/gywlxb.20180503

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Numerical Study of the Oblique Perforation of Single Thin Metallic Plates

doi: 10.11858/gywlxb.20180503

GUO Zitao^1
,,
GUO Zhao¹,
ZHANG Wei^{2,*
,}

1.
Department of Civil Engineering, Jiujiang University, Jiujiang 332005, China
2.
Hypervelocity Impact Research Center, Harbin Institute of Technology, Harbin 150080, China

Received Date: 09 Jan 2018
Rev Recd Date: 28 Jan 2018

Abstract

Abstract

In this study, we conducted numerical simulations of the oblique perforation of single 1 mm-thick Q235 steel plates subjected to flat-and ogive-nosed projectiles at 0°~60° by invoking the ABAQUS subroutine to introduce a modified J-C constitutive model and a modified three-section failure criterion of stress triaxiality, and examined the effects of the projectile nose shape and the obliquity on the ballistic resistance and failure modes of the targets.We also investigated the angle-deflection of the projectiles perforating targets and proposed a modified semi-theoretical model to describe the angle-deflection laws.The results show that the target perforation by flat-nosed projectiles is easier than that by ogive-nosed projectiles at each oblique angles; the ballistic resistance of targets is closely related to the target damages induced by projectile impact; the target has different failure modes as impacted by flat-nosed projectiles at low and high velocities in the same oblique angle respectively, while the failure modes of single target due to impact of ogive-nosed projectiles at different angles do not show much difference.The results of numerical simulation agree well with those of experiments.
- failure criterion,
- oblique impact,
- ballistic resistance,
- failure mode,
- angle deflection,
- numerical simulation

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References(22)

References

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Numerical Study of the Oblique Perforation of Single Thin Metallic Plates

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