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|Title:||Dynamic behavior of carbon nanofiber-modified epoxy with the effect of polydopamine-coated interface||Authors:||Wang, Pengfei
|Keywords:||Engineering::Mechanical engineering||Issue Date:||2020||Source:||Wang, P., Yang, J., Zhang, X., Zhang, H., Zhou, L., Liu, W., Zheng, H., Zhang, M., Shang, J. & Xu, S. (2020). Dynamic behavior of carbon nanofiber-modified epoxy with the effect of polydopamine-coated interface. Mechanics of Advanced Materials and Structures, 27(21), 1827-1839. https://dx.doi.org/10.1080/15376494.2018.1529843||Journal:||Mechanics of Advanced Materials and Structures||Abstract:||Understanding the dynamic mechanical behaviors of nano-modified composites are essential for designing the anti-collision structures. In this work, carbon nanofibers (CNFs) were coated by mussel-inspired polydopamine ad-layer for modifying the interface and dispersion behaviors while incorporated into epoxy. Quasi-static and dynamic compression mechanical responses of CNFs-modified epoxy were systematically investigated. The polydopamine-coated CNFs composites (D-CNFs/epoxy) show the improved strength and strain energy density in comparison with the pristine CNFs/epoxy. The results also indicate that the yield stress and stress-softening properties of polydopamine-coated-CNFs/epoxy are more sensitive to strain rate compared with the neat epoxy and pristine CNFs/epoxy. An empirical constitutive equation in consideration of the strain rate and the strain-softening was proposed to characterize the stress–strain curve. The equivalent epoxy/filler simulation model was built to reveal that a higher interface friction is beneficial in improving the strength of composites, but deteriorating the strength while the interface friction is lower than a certain value.||URI:||https://hdl.handle.net/10356/150749||ISSN:||1537-6494||DOI:||10.1080/15376494.2018.1529843||Rights:||© 2018 Taylor & Francis Group, LLC. All rights reserved.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||MAE Journal Articles|
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