Search results for "glass fibres"

showing 3 items of 3 documents

Quasi-static behaviour and damage assessment of flax/epoxy composites

2015

Experimental investigations were conducted on flax and E-glass fibres reinforced epoxy matrix composites subjected to quasi-static loadings. Flax/epoxy samples having [0]12, [90]12, [0/90]3S and [±45]3S stacking sequences, with a fibre volume fraction of 43% have been tested under tension, compression and in-plane shear loadings. Overall, the compression strength of glass/epoxy was 76% greater than for the flax/epoxy composite. The damage evolution of flax/epoxy of [0/90]3S and [±45]3S samples has been evaluated in terms of transverse crack densities with respect to the load increment. The crack density exhibited a classical “S” shaped pattern for [0/90]3S and linearly for [±45]3S specimens…

010302 applied physicsMatériaux [Sciences de l'ingénieur]Materials sciencePolymer-matrix compositesComposite numberMechanical properties02 engineering and technologyEpoxy matrixEpoxy021001 nanoscience & nanotechnologyE-glass fibres01 natural sciences[SPI]Engineering Sciences [physics]Compressive strengthDamage mechanicsDamage mechanicsvisual_art0103 physical sciencesVolume fractionvisual_art.visual_art_mediumFlax fibresMécanique: Mécanique des matériaux [Sciences de l'ingénieur]Composite material0210 nano-technologyQuasistatic process
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A comparative study of fatigue behaviour of flax/epoxy and glass/epoxy composites

2012

Experimental investigations on flax and glass fabrics reinforced epoxy specimens, i.e. FFRE and GFRE, submitted to fatigue tests are presented in this paper. Samples having [0/90]3S and [±45]3S stacking sequences, with similar fibre volume fractions have been tested under tension–tension fatigue loading. The specific stress-number of cycles to failure (S–N) curves, show that for the [0/90]3S specimens, FFRE have lower fatigue endurance than GFRE, but the [±45]3S FFRE specimens offer better specific fatigue endurance than similar GFRE, in the studied life range (<2 × 10^6). Overall, the three-stage stiffness degradation is observed in all cases except for [0/90]3S FFRE specimens, which prese…

Materials scienceMatériaux [Sciences de l'ingénieur]A. Polymer–matrix composites (PMCs)[ SPI.MAT ] Engineering Sciences [physics]/MaterialsGlass epoxy[ SPI.MECA.STRU ] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of the structures [physics.class-ph]02 engineering and technology[SPI.MAT]Engineering Sciences [physics]/Materials0203 mechanical engineeringFLAX FIBERS[SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph]B. FatigueComposite materialMécanique: Mécanique des matériaux [Sciences de l'ingénieur]Mécanique: Mécanique des structures [Sciences de l'ingénieur]B. Mechanical propertiesGeneral EngineeringA. Glass fibresEpoxy021001 nanoscience & nanotechnologyStiffening020303 mechanical engineering & transportsStiffness degradationCreep[SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph]visual_art[ CHIM.MATE ] Chemical Sciences/Material chemistry[ SPI.MECA.MEMA ] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph]Fatigue loadingCeramics and Compositesvisual_art.visual_art_mediumFlax fibres0210 nano-technologyCREEP
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Glass fibre strength distribution determined by common experimental methods

2002

The tensile strength of brittle fibres is routinely described by the Weibull distribution. The parameters of the distribution can be obtained from tests on single fibres and fibre bundles or from model composite tests. However, there is growing evidence that the distribution parameters obtained by different experimental techniques differ systematically. In order to investigate the possible causes of such discrepancies, single-fibre tension, fibre bundle, and single-fibre fragmentation tests are employed in this study to obtain strength distribution of commercial E-glass fibres. The results reveal parameter dependence on the approach used to extract the distribution parameters from experimen…

Materials scienceTension (physics)glass fibresComposite numberGlass fiberGeneral EngineeringShape parameterMathematics::Algebraic GeometryBrittlenessstatisticsfragmentationUltimate tensile strengthCeramics and CompositesFiber bundleComposite materialstrengthweibull distributionWeibull distributionComposites Science and Technology
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