Interfacial prediction and tensile damage tracking of carbon fiber reinforced polyamide 66 using Z-axis electrical resistance method
- Kwon, Dong -Jun; Myung, Nosang Vincent; Nam, Sang Yong
- Issue Date
- ELSEVIER SCI LTD
- Polymer-matrix composites (PMCs); Interface; Sensing; Damage mechanics; Non-destructive testing
- COMPOSITES SCIENCE AND TECHNOLOGY, v.223
- Journal Title
- COMPOSITES SCIENCE AND TECHNOLOGY
- Deformation monitoring of the inner fabric is important to ensure the quality of continuous fiber-reinforced composites. A Z-axis electrical resistance (Z-ER) mapping method was utilized as an accurate evaluation method to predict the internal composition and deformation of carbon fiber reinforced polyamide composites (CF/PA) during tensile load. The electrical resistance change rate (ERC) in the tensile direction and the Z-ER for tensile stress were utilized to detect the tensile damage of carbon fiber reinforced polyamide composites. Based on the Z-ER mapping, the internal state of carbon fiber reinforced polyamide composites was categorized into three types: uniform electrical resistance (ER), large standard deviation (SD), and tilt ER. The evaluation method was also able to predict the probability of defective CF/PA exhibiting that the normal tensile failure behavior was approximately 31.5%. This process of detection can be integrated as an in-line evaluation technique to automate and standardize carbon fiber reinforced polyamide composite manufacturing.
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- 공학계열 > Dept.of Materials Engineering and Convergence Technology > Journal Articles
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