Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13091/999
Title: In-plane quasi-static and out-of-plane dynamic behavior of nanofiber interleaved glass/epoxy composites and finite element simulation
Authors: Metin, Fatih
Avcı, Ahmet
Keywords: Low-Velocity Impact
Finite Element Analysis
Composite Laminates
Nanofibers
Polysulfone
Interleaving
Low-Velocity Impact
Delamination
Strength
Criteria
Damages
Phase
Issue Date: 2021
Publisher: ELSEVIER SCI LTD
Abstract: Eight-ply glass/epoxy composites interleaved by electrospun Polysulfone (PSF) nanofibers were manufactured by vacuum-assisted hand lay-up method. The effect of nanofibrous interlaminar layers on the mechanical performance of laminated composites was investigated under both in-plane quasi-static and out-of-plane lowvelocity impact (LVI) test conditions. Low-velocity impact responses of reference and nanofiber interleaved composite laminates were modeled by LS-Dyna finite element (FE) code for numerical simulations. The results of the quasi-static mechanical tests show that PSF nanofiber interleaving increases the tensile and compressive strength by 10.5% and 25.5%, respectively. PSF nanofibers played an important role in improving the impact damage resistance of composite laminates with increasing impact energy levels. The low-velocity impact tests results indicated that PSF nanofibers decreased the fiber breakage area at 20 J and 30 J energy levels by about 26% and 28%, respectively. Besides, PSF nanofiber interleaving improved damage threshold load values by 4.8%, 15.2%, and 23% at 10 J, 20 J, and 30 J energy levels, respectively. Experimental and FE simulation results were comparatively presented in terms of force-time, force-deflection, and energy-time curves. A good agreement was achieved between experimental and simulation results.
URI: https://doi.org/10.1016/j.compstruct.2021.114085
https://hdl.handle.net/20.500.13091/999
ISSN: 0263-8223
1879-1085
Appears in Collections:Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections

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