湿热环境对碳纤维/环氧复合材料的冲击破坏特性影响

玻璃钢/复合材料 ›› 2017, Vol. 0 ›› Issue (6): 18-22.

湿热环境对碳纤维/环氧复合材料的冲击破坏特性影响

谷卫敏^1,2,刘齐文^1,2*,刘立胜^1,3,张江涛^1,2

1.新材料力学理论与应用湖北省重点实验室,武汉430070;
2.武汉理工大学理学院力学系,武汉430070;
3.武汉理工大学材料复合和制备国家重点实验室,武汉430070

收稿日期:2017-01-13 出版日期:2017-06-28 发布日期:2017-06-28
通讯作者: 刘齐文(1962-),男,博士,副教授,主要从事数值仿真方面的研究,qiwen_liu@whut.edu.cn。
作者简介:谷卫敏(1992-),女,硕士研究生,主要从事碳纤维环氧树脂基复合材料方面的研究。
基金资助:
国家自然科学基金青年基金项目(11202154);武汉理工大学自主创新基金基础学科重点项目(2016IB002)

IMPACT DAMAGE OF HYGROTHERMAL CONDITIONED CARBON EPOXY COMPOSITE LAMINATES

GU Wei-min^1,3, LIU Qi-wen^1,3, LIU Li-sheng^2,3, ZHAGN Jiang-tao^1,3

1.Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics,Wuhan 430070 China;
2.Department of engineering structure and mechanics, Wuhan University of Technology, Wuhan 430070, China;
3.State Key Laboratory of Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China

Received:2017-01-13 Online:2017-06-28 Published:2017-06-28

摘要/Abstract

摘要： 为了研究湿热环境对碳纤维/环氧树脂(CFRP)复合材料抗冲击性能的影响,对碳纤维/环氧复合材料层合板进行70 ℃水浴处理,采用锥头圆柱形弹体对湿热饱和试样和干燥室温试样进行速度分别为45 m/s、68 m/s、86 m/s的冲击,采用激光测速仪测量冲击前后的速度,然后采用超声C扫描检测系统、超景深三维显微系统、扫描电镜(SEM)等方法对试样的冲击破坏进行检测。实验结果表明:随着冲击速度的增加,试样的破坏投影面积增加;在速度较低时,湿热环境对碳纤维/环氧树脂层合板的损伤孔洞面积影响更大;湿热处理之后的碳纤维/环氧树脂层合板层间性能明显降低。

关键词: 湿热环境, 碳纤维/环氧树脂, 吸湿量, 冲击破坏

Abstract: High velocity impact damage of carbon fiber-reinforced polymer laminates under hygrothermal environment is investigated. Composite laminate specimens were dried in a vacuum oven, and a part of specimens were immersed in water at 70 ℃ for 37.7 days. Then all specimens were impacted by conical projectile with the velocity of 45m/s, 68 m/s, and 86 m/s. The laser velocity measurement device was used to measure the striking and residual velocity. The impact damages of composite specimens under different environments were tested by using ultrasonic C-scan, digital microscope system, scanning electron microscope (SEM) and visual inspection. The experiment results show that, damage projection area increases with the increasing striking velocity. At the case of low velocity, the hygrothermal environment has a greater impact on the damage projection area of carbon fiber-reinforced polymer laminates. The interlaminar properties of carbon fiber-reinforced polymer laminates under hygrothermal environment reduced, while the energy absorption ability increased.

Key words: hygrothermal environment, carbon epoxy, moisture, impact damage

中图分类号:

TB332

谷卫敏,刘齐文,刘立胜,张江涛. 湿热环境对碳纤维/环氧复合材料的冲击破坏特性影响[J]. 玻璃钢/复合材料, 2017, 0(6): 18-22.

GU Wei-min, LIU Qi-wen, LIU Li-sheng, ZHAGN Jiang-tao. IMPACT DAMAGE OF HYGROTHERMAL CONDITIONED CARBON EPOXY COMPOSITE LAMINATES[J]. Fiber Reinforced Plastics/Composites, 2017, 0(6): 18-22.

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