Effect of projectile nose shape, impact velocity and target thickness on deformation behavior of aluminum plates

被引：149

作者：

Gupta, N. K. ^{[1
]}

Iqbal, M. A. ^{[1
]}

Sekhon, G. S. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Appl Mech, New Delhi 110016, India

来源：

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2007年 / 44卷 / 10期

关键词：

deformation mechanism; nose shape; ballistic limit; ABAQUS; thin plates; projectile perforation;

D O I：

10.1016/j.ijsolstr.2006.09.034

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The present study deals with the experimental and numerical investigations of aluminum target plates impacted by blunt, ogive and hemispherical nosed steel projectiles. The projectiles were normally impacted on the target plates of 0.5, 0.71, 1, 1.5, 2, 2.5 and 3 mm thicknesses at different velocities with the help of a pneumatic gun. Effect of projectile nose shape, impact velocity and plate thickness on the deformation of the target plates was studied. Hemispherical nosed projectile caused highest global deformation (dishing) of the target plates. Ogive nosed projectiles were found to be the most efficient penetrator for the case of plates of thicknesses 0.5, 0.71, 1.0 and 1.5 mm. For the case of plates of thicknesses 2:0, 2.5 and 3.0 mm however, blunt nosed projectiles required least energy to perforate the target plates. The ballistic limit velocity of hemispherical nosed projectiles was found to be highest as compared to the other two projectiles. Finite element analysis of the problem was carried out using ABAQUS finite element code. Results of the numerical analysis were compared with the experiments and good correlation between the two was found. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：3411 / 3439

页数：29

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