Test and Evaluation of Body Armor Performance Based on 3D Digital Image Correlation Technology

被引：0
|
作者：
Wen Y. [1 ]
Zheng H. [1 ]
Zhang J. [2 ]
Yan W. [3 ,4 ]
Liu F. [2 ]
机构：
[1] School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing
[2] Unit 63850 of PLA, Jilin
[3] Science and Technology on Transient Impact Laboratory, Beijing
[4] No.208 Research Institute of China Ordnance Industries, Beijing
来源：
Binggong Xuebao/Acta Armamentarii | 2021年 / 42卷 / 06期
关键词：
3D digital image correlation technology; Blunt injury; Body armor; Bullet;
D O I：
10.3969/j.issn.1000-1093.2021.06.001
中图分类号：
学科分类号：
摘要：
5.8 mm bullet penetration NIJ Ⅲ grade SiC/UHMWPE body armor was test to analyze the transient mechanical response of body armor and the degree of blunt injury of human chest under non-penetrating ballistic impact. 3D digital image correlation technology (3D-DIC) was used to capture the back face deformation (BFD) of body armor, and the deformation height and speed were obtained. The blunt criterion (BC) and abbreviated injury scale (AIS) were used to evaluate the degree of blunt injury when the distance between body armor and chest was 5 mm and 10 mm, respectively. The test results show that the average maximum height of BFD is 22.7 mm, its average maximum static height is 16.3 mm, and its average maximum deformation velocity is 117.7 m/s. When the gap between body armor and chest is 5 mm, the corresponding AIS level is 4-5, indicating that the blunt effect behind body armor can cause serious injury to the human body. However, when the gap expands to 10 mm, the AIS level is less than 3, indicating that the blunt effect after body armor causes slight injury to the human body and even has no affect on the human body. © 2021, Editorial Board of Acta Armamentarii. All right reserved.
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页码：1121 / 1127
页数：6
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