Volume 31 Issue 1
Dec 2016
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LI Jian-Feng, DENG Yun-Fei, JIA Bao-Hui. Numerical Simulation of Influence of Projectiles' Boundary Effect on Ballistic Resistance Property of 2A12 Aluminum Alloy Targets[J]. Chinese Journal of High Pressure Physics, 2017, 31(1): 42-50. doi: 10.11858/gywlxb.2017.01.007
Citation: LI Jian-Feng, DENG Yun-Fei, JIA Bao-Hui. Numerical Simulation of Influence of Projectiles' Boundary Effect on Ballistic Resistance Property of 2A12 Aluminum Alloy Targets[J]. Chinese Journal of High Pressure Physics, 2017, 31(1): 42-50. doi: 10.11858/gywlxb.2017.01.007

Numerical Simulation of Influence of Projectiles' Boundary Effect on Ballistic Resistance Property of 2A12 Aluminum Alloy Targets

doi: 10.11858/gywlxb.2017.01.007
  • Received Date: 11 Jul 2015
  • Rev Recd Date: 15 Sep 2015
  • The finite element software, ABAQUS, has been used to establish the simulation models in order to study the performance of 2A12 aluminum alloy targets (with a thickness of 2 mm) impacted by projectiles (with different boundary conditions), and the data of the targets' residual velocities and ballistic limit velocities have been obtained. Based on the simulation results, the influence of the boundary effect on the projectile target failure models and ballistic resistance property are analyzed. The results achieved on the basis of the numerical study show that the influence of the projectiles' boundary effect on the targets' residual velocities is very much limited, becoming almost negligible when the projectile's velocity is high. However, this effect on the targets' failure models is significantly great:the targets' whole deformation and crack extension are increasingly more and more obvious when impacted by vertical-projectiles, convex-projectiles, bevel-projectiles, and concave-projectiles. In addition, the initial velocity of the projectiles can also influence the structural deformations, the degree of which is related to the projectiles' boundary effect.

     

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