Interlaminar fracture in woven carbon/epoxy laminates

This paper describes an experimental study developed to characterize the mode I and mode II fracture toughness of carbon/epoxy woven composites, using DCB and ENF tests, respectively. The laminates were manufactured using an epoxy resin and twelve woven balanced bi-directional layers of carbon fib...

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Main Authors: Paulo N.B. Reis, José A.M. Ferreira, José D.M. Costa, António M. Pereira
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2014-10-01
Series:Fracture and Structural Integrity
Subjects:
Online Access:http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_52.pdf
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author Paulo N.B. Reis
José A.M. Ferreira
José D.M. Costa
António M. Pereira
author_facet Paulo N.B. Reis
José A.M. Ferreira
José D.M. Costa
António M. Pereira
author_sort Paulo N.B. Reis
collection DOAJ
description This paper describes an experimental study developed to characterize the mode I and mode II fracture toughness of carbon/epoxy woven composites, using DCB and ENF tests, respectively. The laminates were manufactured using an epoxy resin and twelve woven balanced bi-directional layers of carbon fibres, all of them with the same orientation (0/90º). Significant instantaneous delaminations were observed particularly for the DCB specimen, which were responsible for an oscillatory behaviour of GI versus crack length. The maximum values obtained for GIC and GIIC were 281 and 1800 J/m2, respectively.
format Article
id doaj-art-026f59047e9140ad98be20036de0f597
institution Kabale University
issn 1971-8993
1971-8993
language English
publishDate 2014-10-01
publisher Gruppo Italiano Frattura
record_format Article
series Fracture and Structural Integrity
spelling doaj-art-026f59047e9140ad98be20036de0f5972025-01-03T00:39:56ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932014-10-0183043143710.3221/IGF-ESIS.30.52Interlaminar fracture in woven carbon/epoxy laminatesPaulo N.B. Reis0José A.M. Ferreira1José D.M. Costa2António M. Pereira3Department of Electromechanical Engineering, University of Beira InteriorCEMUC, Department of Mechanical Engineering, University of CoimbraCEMUC, Department of Mechanical Engineering, University of CoimbraESTG/CDRsp, Polytechnic Institute of LeiriaThis paper describes an experimental study developed to characterize the mode I and mode II fracture toughness of carbon/epoxy woven composites, using DCB and ENF tests, respectively. The laminates were manufactured using an epoxy resin and twelve woven balanced bi-directional layers of carbon fibres, all of them with the same orientation (0/90º). Significant instantaneous delaminations were observed particularly for the DCB specimen, which were responsible for an oscillatory behaviour of GI versus crack length. The maximum values obtained for GIC and GIIC were 281 and 1800 J/m2, respectively.http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_52.pdfCarbon fibre reinforced compositesDelaminationFracture toughness
spellingShingle Paulo N.B. Reis
José A.M. Ferreira
José D.M. Costa
António M. Pereira
Interlaminar fracture in woven carbon/epoxy laminates
Fracture and Structural Integrity
Carbon fibre reinforced composites
Delamination
Fracture toughness
title Interlaminar fracture in woven carbon/epoxy laminates
title_full Interlaminar fracture in woven carbon/epoxy laminates
title_fullStr Interlaminar fracture in woven carbon/epoxy laminates
title_full_unstemmed Interlaminar fracture in woven carbon/epoxy laminates
title_short Interlaminar fracture in woven carbon/epoxy laminates
title_sort interlaminar fracture in woven carbon epoxy laminates
topic Carbon fibre reinforced composites
Delamination
Fracture toughness
url http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_52.pdf
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AT joseamferreira interlaminarfractureinwovencarbonepoxylaminates
AT josedmcosta interlaminarfractureinwovencarbonepoxylaminates
AT antoniompereira interlaminarfractureinwovencarbonepoxylaminates