Influence of conical projectile diameter on perpendicular impact of thin steel plate

被引：87

作者：

Rusinek, A. ^{[2
]}

Rodriguez-Martinez, J. A. ^{[1
]}

Arias, A. ^{[1
]}

Klepaczko, J. R. ^{[2
]}

Lopez-Puente, J. ^{[1
]}

机构：

[1] Univ Carlos III Madrid, Dept Continuum Mech & Struct Anal, Madrid 28911, Spain

[2] Univ Paul Verlaine Metz, CNRS, UMR 7554, Lab Phys & Mech Mat, F-57045 Metz, France

来源：

ENGINEERING FRACTURE MECHANICS | 2008年 / 75卷 / 10期

关键词：

dynamic behaviour; ductile failure; numerical simulation; perforation;

D O I：

10.1016/j.engfracmech.2008.01.011

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A numerical study of conical projectiles for perpendicular impact on a thin steel plate is reported. The target material considered, Weldox 460 E steel, is frequently used for this kind of application and several results of experiments are available in the international literature to verify numerical simulations. The Johnson-Cook constitutive relation coupled with the Johnson-Cook failure criterion have been applied to analyse penetration of the target and also the failure process. The analysis has been focussed on the influence of the projectile diameter on the perforation process, assuming the same projectile mass. The aim was to preserve the same initial kinetic energy and identical nose angle. The goal is to estimate the ballistic limit, the residual velocity, the plastic work, and the temperature levels produced during the penetration process. The analysis has shown a linear increase of the ballistic limit with the projectile diameter. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2946 / 2967

页数：22

共 51 条

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