基于三维数字图像相关技术的防弹衣性能测试与评估  

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

作　　者：温垚珂[1] 郑浩 张俊斌 闫文敏 刘飞 WEN Yaoke;ZHENG Hao;ZHANG Junbin;YAN Wenmin;LIU Fei(School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China;Unit 63850 of PLA, Baicheng 137001, Jilin, China;Science and Technology on Transient Impact Laboratory, Beijing 102202, China;No.208 Research Institute of China Ordnance Industries, Beijing 102202, China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]63850部队,吉林白城137001 [3]瞬态冲击技术重点实验室,北京102202 [4]中国兵器工业第208研究所,北京102202

出　　处：《兵工学报》2021年第6期1121-1127,共7页Acta Armamentarii

基　　金：国家自然科学基金项目(11872215);国防基础科研项目(JCKYS201909C001);军委科技委基础加强计划技术领域基金项目(2019-JCJQ-JJ-373)。

摘　　要：为分析在非贯穿侵彻情况下防弹衣瞬态力学响应及人体胸部钝性损伤程度,对5.8 mm通用弹侵彻美国司法协会Ⅲ级碳化硅/超高分子量聚乙烯防弹衣进行试验研究。采用三维数字图像相关技术开展试验,获得防弹衣背面鼓包高度和变形速度等数据,并结合钝性准则和简明损伤定级标准(AIS)对防弹衣距胸部间隙分别为5 mm和10 mm时进行钝性损伤程度评估。结果显示:在侵彻过程中最大鼓包高度的平均值为22.7 mm,鼓包稳定后高度的平均值为16.3 mm,最大变形速度的平均值为117.7 m/s;当防弹衣距胸部间隙为5 mm时对应的AIS等级为4~5,表明防弹衣后钝击效应仍可对人体造成严重损伤;当间隙扩大到10 mm时AIS等级小于3,表明防弹衣后钝击效应对人体造成轻微损伤甚至不会对人体产生影响。5.8 mm bullet penetration NIJⅢgrade 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.

关 键 词：防弹衣 枪弹 三维数字图像相关技术 钝性损伤 

分 类 号：TJ012.4[兵器科学与技术—兵器发射理论与技术]