Detecting Impact Damage in Carbon Fabric/epoxy-matrix Composites by Ultrasonic F-scan and Electrical Resistance Measurement

The status and the variation of electrical resistance of impacted carbon fiber/epoxy-matrix composites were studied by ultrasonic F-scan and electrical resistance measurement The experimental results shows that impact damage energy threshold value of carbon fabric/epoxy-matrix composites can determi...

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Bibliographic Details
Published in:Journal of Wuhan University of Technology. Materials science edition 2010-04, Vol.25 (2), p.214-217
Main Authors: Xie, Xiaolin, Quan, Hongying, Li, Zhipeng, Wang, Gaochao, Xiong, Chuanxi, Wang, Jun
Format: Article
Language:English
Subjects:
Carbon fibers
Chemistry and Materials Science
Materials Science
R&D
Research & development
冲击损伤
损伤检测
环氧基复合材料
电阻变化
电阻测量
碳纤维织物
超声波
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Summary:The status and the variation of electrical resistance of impacted carbon fiber/epoxy-matrix composites were studied by ultrasonic F-scan and electrical resistance measurement The experimental results shows that impact damage energy threshold value of carbon fabric/epoxy-matrix composites can determine by using ultrasonic F-scan. When the impact energy exceeds the threshold value, damage is generated in composites. Electrical resistance of impacted composites is changed owing to the contact of each carbon fiber unit in composites, which cause a change of the series-parallel in conductors. The veracity of detecting impact damage in composites can be improved in this case.
ISSN:1000-2413
1993-0437
DOI:10.1007/s11595-010-2214-1