Numerical study on dynamic plastic buckling of deep penetrating projectile

QU Ming; CHEN Xiao-wei; CHEN Gang

doi:10.11883/1001-1455(2008)02-0116-08

Volume 28 Issue 2

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QU Ming, CHEN Xiao-wei, CHEN Gang. Numerical study on dynamic plastic buckling of deep penetrating projectile[J]. Explosion And Shock Waves, 2008, 28(2): 116-223. doi: 10.11883/1001-1455(2008)02-0116-08

Citation:

QU Ming, CHEN Xiao-wei, CHEN Gang. Numerical study on dynamic plastic buckling of deep penetrating projectile[J]. Explosion And Shock Waves, 2008, 28(2): 116-223. doi: 10.11883/1001-1455(2008)02-0116-08

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Numerical study on dynamic plastic buckling of deep penetrating projectile

doi: 10.11883/1001-1455(2008)02-0116-08

1.
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China

Publish Date: 2008-03-25

Abstract

Abstract

The present paper conducts a numerical study on the dynamic plastic buckling of deep penetrating projectiles. Numerical simulations display the different processes of failure and destruction of projectiles with LS-DYNA3D. It confirms that, two failure modes, i.e., crapy buckling and dynamic expansion buckling exist for different length-diameter-ratio projectiles, which have observed in the experimental study. Characteristic acceleration curves correspond to different modes of buckling failure. Two kinetic fields of rigid-plastic three-hinges are constructed to describe the two modes of buckling failure.
- mechanics of explosion,
- dynamic buckling,
- numerical simulation,
- projectile,
- penetration/perforation,
- steel target