摘要
碳纤维增强复合材料(CFRP)是复合材料中性能优良且应用广泛的材料之一。对CFRP层合板进行了湿热循环老化处理,对老化试样进行了0°拉伸试验,并通过SEM、XPS分析其老化机理。结果表明,CFRP层合板吸湿过程符合Fick第二定律,在225 h时达到吸湿平衡,最终饱和吸湿率为0.75%;经过30 d老化后材料抗拉强度和弹性模量分别退化29.7%和14.6%;材料微观损伤变化与宏观表现基本吻合。
Carbon Fibre Reinforced Plastics(CFRP)is one of the most excellent and widely used composites.The damp-heat cycle aging treatment of CFRP laminates is carried out.The aging samples are subjected to 0°tensile test,and the aging mechanism is analyzed by SEM and XPS.The results show that the hygroscopic process of CFRP laminates conforms to Fick's second law and reaches hygroscopic equilibrium at about 225 h,and the final saturated hygroscopic rate is 0.75%.After 30 days of aging,the tensile strength and elastic modulus of the material degrade 29.7%and 14.6%respectively.The microscopic damage changes of materials are basically consistent with the macroscopic behavior.
作者
宗鑫伟
周飞宇
时中猛
赵建平
Zong Xinwei;Zhou Feiyu;Shi Zhongmeng;Zhao Jianping(School of Mechanical and Power Engineering,Nanjing Tech University,Jiangsu Nanjing,211816,China)
出处
《机械设计与制造工程》
2022年第10期6-10,共5页
Machine Design and Manufacturing Engineering
基金
国家重点研发计划资助项目(2020YFB1506100)。
关键词
碳纤维复合材料
湿热老化
损伤机理
carbon fiber composites
hygrothermal aging
damage mechanism
