Abstract
The interlaminar fracture of carbon fiber reinforced composites is a leading cause of failure while in service. In an effort to overcome this weakness, carbon nanotubes were embedded into HexPly® IM7/8552 Prepreg in an attempt to increase the interlaminar strength. The present work experimentally analyzed the mechanical properties of the composite materials with and without carbon nanotubes. A systematic curing process was designed to fabricate composite laminates in either an 8-ply quasi-isotropic or 12-ply unidirectional configurations. Property variations at 0°, 30°, 45°, 60°, and 90° were investigated using the unidirectional laminates. Samples were subjected to supersonic impact and 4-point bending tests. Scanning electron microscopy was used to analyze the postmortem specimens. The 4-point bending tests were analyzed using digital image correlation to measure displacement, strain fields, and calculate flexural strength.
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Acknowledgments
Support for this project was provided by Clemson University’s Creative Inquiry Program. The authors thank Hexcel Corporation and N12 Technologies, Inc for providing the carbon fiber prepreg material used in this study.
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Argenal, A., Matthews, D., Murrell, C., Cannon, A.H., Pankow, M., Pataky, G.J. (2023). Carbon Fiber Reinforced Polymers with Carbon Nanotubes: Investigation of Interlaminar Strength. In: Chalivendra, V., Gardea, F. (eds) Mechanics of Composite, Hybrid & Multi-functional Materials, Volume 5. SEM 2022. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-031-17445-2_1
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DOI: https://doi.org/10.1007/978-3-031-17445-2_1
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