Energy Absorption and Dynamic Deformation of Backing Material for Ballistic Evaluation of Body Armour

被引：7

作者：

Bhattacharjee, Debarati ^{[1
]}

Kumar, Ajay ^{[1
]}

Biswas, Ipsita ^{[2
]}

机构：

[1] Terminal Ballist Res Lab, Chandigarh, India

[2] Terminal Ballist Res Lab, Ballist Evaluat Mat & High Strain Rate Studies Gr, Chandigarh, India

来源：

DEFENCE SCIENCE JOURNAL | 2013年 / 63卷 / 05期

关键词：

Backing material; plasticine; back face signature; body armour; ballistic evaluation;

D O I：

10.14429/dsj.63.3821

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The measurement of back face signature (BFS) or behind armour blunt trauma (BABT) is a critical aspect of ballistic evaluation of body armour. BFS is the impact experienced by the armour wearing body, when subjected to a non-penetrating projectile. Mineral or polymeric clay is used to measure the BFS. In addition to stopping the projectile, the body armour can be used only when the BFS also falls within permissible limits. The extent of the BFS depends upon the behavior of the backing material in different loading conditions and prior history. This paper explains some of the studies carried out on the backing material used for ballistic evaluation in Terminal Ballistics Research Laboratory, Chandigarh. It has been observed that the backing material is highly non-linear viscoelastic in nature. The depth of deformation is also linearly proportional to the impact energy and temperature. The effect of time on the depth of deformation is gradual and does not influence the BFS values during a standard ballistic evaluation comprising of 6-8 shots.

引用

页码：462 / 466

页数：5

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