典型文献
Equivalent protection factor of bi-layer ceramic metal structures
文献摘要：
With increasing ballistic threat levels,there is ever more demand on developing ceramic armor designs with improved performance.This paper presents finite element simulations that investigate the per-formance of silicon carbide ceramic with steel 4340 backing material and titanium alloy,graphite as buffer layers when subjected to normal and oblique impacts by a tungsten alloy long rod projectile(LRP).Depth of penetration from experimental measurements is compared with simulations to confirm the validity of constitutive,failure model parameters.Titanium alloy cover plate and graphite interface weak layer laterally spread the impact shock away from the SiC tile and reduces the amplification of the stress accumulation at the front surface of the SiC tile.The dwelling time increases before it penetrates into ceramic armor.Further,using AUTODYN? numerical simulations detailed parametric study is carried out to identify the minimum areal density armor for a given ballistic limit velocity.The equivalent protection factor for the bi-layer armor is a simple function of the cosine of the angle of impact.
文献关键词：
中图分类号：
作者姓名：
Govind Gour;Sridhar Idapalapati;Wei Liang Goh;Xiao-peng Shi
作者机构：
School of Mechanical&Aerospace Engineering,Nanyang Technological University,50 Nanyang Avenue,Singapore,639798,Singapore;School of Materials Science&Engineering,Nanyang Technological University,50 Nanyang Avenue,Singapore,639798,Singapore
文献出处：
引用格式：
[1]Govind Gour;Sridhar Idapalapati;Wei Liang Goh;Xiao-peng Shi-.Equivalent protection factor of bi-layer ceramic metal structures)[J].防务技术,2022(03):384-400
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AB值：
0.666313
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