芳纶平纹编织复合材料平板弹道冲击特性及损伤分析  

Ballistic impact characteristics and damage analysis of aramid plain woven composite plates

作　　者：牟浩蕾[1] 李仪 宋东方 解江[1] 冯振宇[1] MOU Haolei;LI Yi;SONG Dongfang;XIE Jiang;FENG Zhenyu(Science and Technology Innovation Research Institute,Civil Aviation University of China,Tianjin 300300,China;Sino-European Institute of Aviation Engineering,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学科技创新研究院,天津300300 [2]中国民航大学中欧航空工程师学院,天津300300

出　　处：《复合材料科学与工程》2024年第1期89-97,104,共10页Composites Science and Engineering

基　　金：天津市多元投入基金项目(21JCYBJC00690)。

摘　　要：为了研究1000D629T/EPMOLD110芳纶平纹编织复合材料平板抗冲击行为及损伤特性,采用真空辅助树脂灌注成型技术(VARI)和树脂传递模塑成型技术(RTM)加工不同厚度的平板试验件,通过空气炮装置进行弹道冲击试验。同时,基于芳纶平纹编织复合材料基础力学性能试验数据,建立经验证的细观代表体积单元(RVE)模型,通过拟合确定宏观模型的材料本构参数;建立芳纶平纹编织复合材料平板弹道冲击宏观有限元模型,结合CT扫描结果进一步分析其弹道极限特性及损伤形貌等。结果表明:芳纶平纹编织复合材料平板在圆柱弹体冲击试验下的失效模式主要为纤维拉伸断裂、纤维脱出、面外剪切与层间分离等;随着平板厚度增加,其弹道极限相应增加,且与VARI工艺相比,采用RTM工艺可将芳纶平纹编织复合材料平板的抗冲击性能提升5%;芳纶平纹编织复合材料平板宏观模型的弹道冲击仿真结果与试验结果吻合较好,弹道极限误差在1%以内。To study 1000D629T/EPMOLD110 aramid woven composite plates’impact resistance behavior and damage characteristics,plates with different thicknesses are processed using vacuum assisted resin infusion molding(VARI)and resin transfer molding(RTM).Ballistic impact tests were carried out with air gun device.Based on basic mechanical test data,a verified representative volume element(RVE)model is established,and material constitutive parameters of macro model are determined with fitting and calibration;a macro finite element model for ballistic impact is established to further analyze ballistic limit and damage morphology with CT scanning results.It was shown that aramid plain woven composite plates’ballistic impact damage modes are mainly fiber fracture,fiber prolapse,out of plane shear and inter-layer separation;the ballistic limit increase with plate thickness,and compared with VARI process,RTM process can improve ballistic limit by 5%;the damage behaviors of simulation agree well with experimental results and the error for ballistic limit is within 1%.

关 键 词：芳纶平纹编织复合材料 弹道冲击试验 损伤分析 细观代表体积单元(RVE) 数值模拟 

分 类 号：TB332[一般工业技术—材料科学与工程]