2022-04-062022-04-062012-01Karahan, M. (2012). "The effect of fibre volume fraction on damage initiation and propagation of woven carbon-epoxy multi-layer composites". Textile Research Journal, 82(1), 45-61.0040-51751746-7748https://doi.org/10.1177/0040517511416282https://journals.sagepub.com/doi/full/10.1177/0040517511416282http://hdl.handle.net/11452/25586In the current study, the mechanical behaviour, damage initiation and propagation properties of 2 x 2-twill woven carbon composites with various fibre volume fractions, under uni-axial tension in the warp direction, were investigated. Observations of damage were made using acoustic emission (AE), x-ray and microscopy techniques. The mechanical properties and strain values of the composite damage thresholds were determined. The strain levels at which AE events were recorded for the first time (i.e. the epsilon(min) values) were affected by variations in fibre volume fraction; however, characteristic strain values indicating damage initiation (i.e. epsilon(1) and epsilon(2)) were not affected by variations in fibre volume fraction.eninfo:eu-repo/semantics/closedAccessMaterials scienceWoven compositesMechanical propertiesDamageAcoustic emissionBraided textile compositesPlain-weave composites3d orthogonal weaveTensile propertiesAcoustic-emissionPart 1Fabric preformsCompactionGeometryReinforcementAcoustic emissionsCarbon carbon compositesMechanical propertiesStrainVolume fractionWeavingCarbon compositesCarbon-epoxyComposite damageDamage initiationFibre volume fractionMechanical behaviourMicroscopy techniqueMultilayer compositeStrain levelsStrain valuesWoven compositeFibersArticle0002981848000062-s2.0-834552141064561821Materials science, textilesBraided Composites; Braiding; Three Dimensional Composites