Effect of neat and reinforced polyacrylonitrile nanofibers incorporation on interlaminar fracture toughness of carbon/epoxy composite

Effect of neat and reinforced polyacrylonitrile nanofibers incorporation on interlaminar fracture toughness of carbon/epoxy composite

ABSTRACT: This paper presents an experimental investigation on fracture behavior of epoxy resin-carbon fibers composites interleaved with both neat polyacrylonitrile (PAN) nanofibers and Al2O3-PAN nanofibers. In particular, the paper focuses on the effect of adding Al2O3 nanopartiles in PAN nanofibe...

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Main Authors: S.M.J. Razavi, R. Esmaeely Neisiany, S. Nouri Khorasani, S. Ramakrishna, F. Berto
Format: Article
Language:English
Published: Elsevier 2018-03-01
Series:Theoretical and Applied Mechanics Letters
Online Access:http://www.sciencedirect.com/science/article/pii/S2095034918300849
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spelling doaj-0ba3ed7bde10469dad60ec1b2d44808a2020-11-24T22:13:25ZengElsevierTheoretical and Applied Mechanics Letters2095-03492018-03-0182126131Effect of neat and reinforced polyacrylonitrile nanofibers incorporation on interlaminar fracture toughness of carbon/epoxy compositeS.M.J. Razavi0R. Esmaeely Neisiany1S. Nouri Khorasani2S. Ramakrishna3F. Berto4Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 2b, 7491, Trondheim, Norway; Corresponding authorCenter for Nanofibers and Nanotechnology, Department of Mechanical Engineering, National University of Singapore (NUS), Singapore 117576, Singapore; Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, IranDepartment of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, IranCenter for Nanofibers and Nanotechnology, Department of Mechanical Engineering, National University of Singapore (NUS), Singapore 117576, SingaporeDepartment of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 2b, 7491, Trondheim, NorwayABSTRACT: This paper presents an experimental investigation on fracture behavior of epoxy resin-carbon fibers composites interleaved with both neat polyacrylonitrile (PAN) nanofibers and Al2O3-PAN nanofibers. In particular, the paper focuses on the effect of adding Al2O3 nanopartiles in PAN nanofibers, which were incorporated in unidirectional (UD) laminates. The effectiveness of adding a thin film made of Al2O3-PAN on the fracture behavior of the carbon fiber reinforced polymer (CFRP) has been addressed by comparing the energy release rates, obtained by testing double cantilever beam (DCB) samples under mode I loading condition. A general improvement in interlaminar fracture energy of the CFRP is observed when the both neat PAN nanofibers and Al2O3-PAN nanofibers are interleaved. However, higher interlaminar strength has been observed for the samples with a thin film of Al2O3-PAN nanofibers, suggesting a better stress distribution and stress transformation from resin-rich area to reinforcement phase of hybrid composites. Keywords: Carbon fiber reinforced polymer, Delamination, Fracture test, Nanofibers, Al2O3. nanoparticleshttp://www.sciencedirect.com/science/article/pii/S2095034918300849
collection DOAJ
language English
format Article
sources DOAJ
author S.M.J. Razavi
R. Esmaeely Neisiany
S. Nouri Khorasani
S. Ramakrishna
F. Berto
spellingShingle S.M.J. Razavi
R. Esmaeely Neisiany
S. Nouri Khorasani
S. Ramakrishna
F. Berto
Effect of neat and reinforced polyacrylonitrile nanofibers incorporation on interlaminar fracture toughness of carbon/epoxy composite
Theoretical and Applied Mechanics Letters
author_facet S.M.J. Razavi
R. Esmaeely Neisiany
S. Nouri Khorasani
S. Ramakrishna
F. Berto
author_sort S.M.J. Razavi
title Effect of neat and reinforced polyacrylonitrile nanofibers incorporation on interlaminar fracture toughness of carbon/epoxy composite
title_short Effect of neat and reinforced polyacrylonitrile nanofibers incorporation on interlaminar fracture toughness of carbon/epoxy composite
title_full Effect of neat and reinforced polyacrylonitrile nanofibers incorporation on interlaminar fracture toughness of carbon/epoxy composite
title_fullStr Effect of neat and reinforced polyacrylonitrile nanofibers incorporation on interlaminar fracture toughness of carbon/epoxy composite
title_full_unstemmed Effect of neat and reinforced polyacrylonitrile nanofibers incorporation on interlaminar fracture toughness of carbon/epoxy composite
title_sort effect of neat and reinforced polyacrylonitrile nanofibers incorporation on interlaminar fracture toughness of carbon/epoxy composite
publisher Elsevier
series Theoretical and Applied Mechanics Letters
issn 2095-0349
publishDate 2018-03-01
description ABSTRACT: This paper presents an experimental investigation on fracture behavior of epoxy resin-carbon fibers composites interleaved with both neat polyacrylonitrile (PAN) nanofibers and Al2O3-PAN nanofibers. In particular, the paper focuses on the effect of adding Al2O3 nanopartiles in PAN nanofibers, which were incorporated in unidirectional (UD) laminates. The effectiveness of adding a thin film made of Al2O3-PAN on the fracture behavior of the carbon fiber reinforced polymer (CFRP) has been addressed by comparing the energy release rates, obtained by testing double cantilever beam (DCB) samples under mode I loading condition. A general improvement in interlaminar fracture energy of the CFRP is observed when the both neat PAN nanofibers and Al2O3-PAN nanofibers are interleaved. However, higher interlaminar strength has been observed for the samples with a thin film of Al2O3-PAN nanofibers, suggesting a better stress distribution and stress transformation from resin-rich area to reinforcement phase of hybrid composites. Keywords: Carbon fiber reinforced polymer, Delamination, Fracture test, Nanofibers, Al2O3. nanoparticles
url http://www.sciencedirect.com/science/article/pii/S2095034918300849
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