警用轻质复合防弹材料的制备及性能研究  

Preparation and properties of lightweight composite bulletproof materials for police

作　　者：师博[1] SHI Bo(Department of Command and Tactics,Henan Police College,Zhengzhou 450046,China)

机构地区：[1]河南警察学院指挥战术系,河南郑州450046

出　　处：《兵器材料科学与工程》2021年第6期51-55,共5页Ordnance Material Science and Engineering

基　　金：2020年度河南省虚拟仿真实验教学重点项目(88)。

摘　　要：以泡沫铝为夹芯材料,将其置于两块偏薄的铝板间,用胶粘法将铝板和夹芯材料连接,制备不同板厚和泡沫铝密度的两种(1^(#)和2^(#))警用轻质复合防弹材料,用不同密度泡沫铝子弹进行冲击试验,研究该材料的抗弯性、冲击断裂性等。结果表明:两种试件均在三点弯曲试验中脆性断裂,1、2^(#)试件的最大抗弯载荷分别为621、743 N,2^(#)试件的抗弯性能较好;冲击断裂测试中,1^(#)试件断裂、2^(#)试件严重变形,最大冲击载荷分别为466、498 N,增加板厚和夹芯材料密度能提升试件抗冲击性能;泡沫铝子弹密度越大,冲击伤害越大,1、2^(#)试件均有良好消耗子弹动能的能力。Foamed aluminum was used as the sandwich material,placed between two thin aluminum panels,and connected with the sandwich layer using an adhesive method to prepare two different panel thicknesses and foam aluminum densities(1^(#)and 2^(#))lightweight composite bulletproof materials for police use.The impact tests with aluminum foam bullets of different densities were conducted to study the material’s flexural performance,impact fracture performance,etc.The results show that two specimens are both brittlely fractured during three-point bending test.The maximum bending loads of the 1^(#)and 2^(#)specimen are 621 N and 743 N,respectively,and the 2^(#)specimen has better flexural performance.During the impact fracture test,the 1^(#)specimen is broken and the 2^(#)specimen is severely deformed.The maximum impact loads are 466 N and 498 N,respectively.Increasing the thickness of panel layer and the density of sandwich layer can improve the impact resistance of multiple specimens.The greater the density of foam aluminum bullets is,the greater the impact damage is.The 1^(#)and 2^(#)test piece have a good ability to consume the kinetic energy of the bullet.

关 键 词：警用轻质 复合防弹材料 泡沫铝 多孔金属 冲击载荷 动能消耗 

分 类 号：O34[理学—固体力学]