电热载荷对修补碳纤维增强复合材料冲击后压缩性能的影响  

Effects of Electric-thermal Load on Residual Compressive Strength Repaired CFRP after Impact

作　　者：李娜 张俊 路鹏程 王涛 颜金 LI Na;ZHANG Jun;LU Pengcheng;WANG Tao;YAN Jin(Tianjin Key Laboratory for Civil Aircraft Airworthiness and Maintenance, Civil Aviation University of China, Tianjin 300300, China;Guangzhou Aircraft Maintenance Engineering Co. Ltd, Guangzhou 510470, China)

机构地区：[1]中国民航大学,天津市民用航空器适航与维修重点实验室,天津300300 [2]广州飞机维修工程有限公司,广州510470

出　　处：《材料科学与工程学报》2017年第6期887-891,共5页Journal of Materials Science and Engineering

基　　金：中央高校基本科研业务费资助项目(3122013Z009)

摘　　要：为了研究碳纤维复合材料(CFRP)修补结构在电热载荷环境下的冲击性能,采用自制的电热损伤测试平台,测试了修补后CFRP层板在不同电流下试样的表面温度分布和电阻变化规律,对修补后CFRP层板进行了低速冲击和冲击后剩余压缩强度(CAI)测试,并对冲击损伤失效特征进行了对比分析。结果表明:低电流对修补后CFRP层板的抗冲击性能影响较小,CAI呈现略微增长的趋势;随着电流强度的增加,电热产生的高温对修补界面层产生破坏,导致材料抗冲击性能减弱,CAI明显降低。In order to investigate the impact performance of repaired Carbon Fiber Reinforced Polymer （CFRP） at electric-thermal load conditions, the electric-thermal load were performed on the repaired CFRP by the self-devised damage test device. The surface temperature field of the electrified specimens and the resistance variation with different current intensity were measured. The velocity impact and residual compressive strength after impact （CAI） of the electrified specimens were measured. The impact damage failure behavior was analyzed. The research results revealed that the effect on the impact properties is not so dominant when specimens electrified with low current that the CAI just increases slightly. With the increase of current intensity, the repaired interface layer property is destroyed by the high temperature of electric-thermal. The impact performance and CAI of electrified specimens are decreased obviously.

关 键 词：复合材料修补 电热损伤 低速冲击 剩余压缩强度 

分 类 号：TQ327.3[化学工程—合成树脂塑料工业]