The effect of PVDF nanofibers on mode-I fracture toughness of composite materials |
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| Affiliation: | 1. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China;2. Changzhou Institute of Advanced Materials, Beijing University of Chemical Technology, Beijing 100029, PR China;1. Ghent University, Department of Textiles, Technologiepark-Zwijnaarde 907, B-9052, Zwijnaarde, Belgium;2. Ghent University, Department of Materials Science and Engineering, Technologiepark-Zwijnaarde 903, B-9052, Zwijnaarde, Belgium;3. Vrije Universiteit Brussel, Department Materials and Chemistry, Pleinlaan 2, B-1050, Brussels, Belgium;1. Department of Textiles, Ghent University, Technologiepark-Zwijnaarde 907, B-9052 Zwijnaarde, Belgium;2. Department of Materials Science and Engineering, Ghent University, Technologiepark-Zwijnaarde 903, B-9052 Zwijnaarde, Belgium;3. Department Materials and Chemistry, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium;1. Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Hafez Ave. 424, Tehran 15914, Iran;2. Young Researchers and Elite Club, Arak Branch, Islamic Azad University, Arak, Iran;3. Department of Mechanical Engineering, Tarbiat Modares University, Tehran 14115-143, Iran;1. Department of Mechanical Engineering, Amirkabir University of Technology, 424 Hafez Ave., 158754413 Tehran, Iran;2. New Technologies Research Center (NTRC), Amirkabir University of Technology, 424 Hafez Ave., 158754413 Tehran, Iran;3. Department of Mechanical Engineering, Tafresh University, Tehran Road, 7961139518 Tafresh, Iran |
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| Abstract: | In this study, the fracture behavior of carbon/epoxy laminates interleaved by polyvinylidene fluoride (PVDF) nanofibers is investigated. For this aim, a mode-I fracture test is conducted on virgin and modified laminates. Unlike the results of other studies, it is shown that PVDF nanofibers can increase mode-I fracture toughness (GI) noticeably in a specific situation. The results show that GI is enhanced about 43% and 36% in initiation and propagation stages of the fracture, respectively, using PVDF nanofibers. The morphology of the fractured surface is also presented for investigating the mechanism of toughening. |
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| Keywords: | A. Laminates B. Fracture toughness D. Mechanical testing Interleaving |
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