Tensile post-impact behaviour of thin carbon/epoxy and glass/epoxy hybrid woven laminates – Part I: Experimental study

Rogani, Ange; Navarro, Pablo; Marguet, Steven; Ferrero, Jean-François; Lanouette, C.

doi:10.1016/j.compstruct.2019.111508

Cited by 8 publications

(21 citation statements)

References 37 publications

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“…For the C45C0 configuration, the fibres failure are oriented at (0/90) • in the lower ply and are oriented with an angle that varies between ±45 • and (0/90) • in the upper ply. Indeed, the damage propagation in the upper ply is influenced by the directions of the lower ply, as it has been shown in [27] that the damage initiates in this lower ply. The size of the damages increase with the energy of impact until an energy of 4 J for which the impactor totally perforates the sample.…”

Section: Low Velocity Impact Testsmentioning

confidence: 91%

“…The impact tests have been described in [27]. They have been conducted with the drop weight device presented on the Figure 3.…”

Section: Low Velocity Impact Testsmentioning

confidence: 99%

“…These impact tests have been carried out in the same experimental campaign than presented in [27]. The damage shapes and sizes are very repeatable.…”

Section: Low Velocity Impact Testsmentioning

confidence: 99%

“…The load ratio is defined as R = ∆L dyn /∆L sta = 0.9. The level of the fatigue load is set as a function of the break displacement in quasi-static tension ∆L rupt QS measured in [27] : ∆L sta = 25% ∆L rupt QS for C45C45 and ∆L sta = 40% ∆L rupt QS for C0C0 and C45C0.…”

Section: Low Velocity Impact Testsmentioning

confidence: 99%

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Study of post-impact behaviour of thin carbon/epoxy laminates subject to fatigue tensile loading

Rogani

Navarro

Marguet

et al. 2021

International Journal of Fatigue

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This article concerns the experimental and numerical study of post-impact damage propagation in thin carbon/epoxy woven composite laminates loaded in fatigue tension. Low velocity normal drop weight impact tests are first performed. Post-impact fatigue tensile tests are then carried out. They are controlled in displacement. The monitoring is based on Digital Image Correlation and RX tomography. The influence of the impact energy and the tensile fatigue loading on the post-impact damage propagation is studied. The damage propagation is governed by matrix damage, with the emergence of tows/resin splittings and intra-tows crackings as well as delamination when the plies have different orientations. When the impact energy or the displacement level increases, the post-impact damage initiates sooner and propagate faster. In some cases, that can lead to a quasi-instantaneous failure identical to that observed for quasi-static tensile loading. The FEM based semi-continuous approach, initialy developped for the modelling of impact damage, is extended to fatigue loading for carbon/epoxy woven laminates.Fatigue damage laws, based on experimental observations are implemented.The modelling well correlates the experimental results in terms of damage

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Section: Low Velocity Impact Testsmentioning

confidence: 91%

“…The impact tests have been described in [27]. They have been conducted with the drop weight device presented on the Figure 3.…”

Section: Low Velocity Impact Testsmentioning

confidence: 99%

“…These impact tests have been carried out in the same experimental campaign than presented in [27]. The damage shapes and sizes are very repeatable.…”

Section: Low Velocity Impact Testsmentioning

confidence: 99%

Section: Low Velocity Impact Testsmentioning

confidence: 99%

See 2 more Smart Citations

Study of post-impact behaviour of thin carbon/epoxy laminates subject to fatigue tensile loading

Rogani

Navarro

Marguet

et al. 2021

International Journal of Fatigue

Self Cite

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“…The low velocity impact strength of fiber reinforced polymeric composites depends on many factors, as matrix and fiber properties, their compatibility, fabric weave type, damage strength and quality of fiber-matrix interface, plate thickness [11], shape and diameter of the impactor [12] and initial experimental test parameters (velocity and height). In order to improve the impact performance of the laminate composites as reinforcements can be used different types of fiber/fabric plies (carbon-glass [13][14][15], carbon-aramid [16], carbon-basalt [17], glass-basalt [18], basalt-aramid [19], etc.) within a single epoxy matrix combining the desired properties of each fiber type and increasing the damage tolerance.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on the Low Velocity Impact Behavior of Hybrid Epoxy Composites

Bunea¹,

Birsan²,

Cîrciumaru³

2019

Mater. Plast.

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The low velocity impact response of hybrid epoxy composites reinforced with plain weave fabrics, ply orientation at various angles and filled stratified matrix was analyzed in this study. The hybrid epoxy composites were subjected to impact tests at 45J and 90J of energy levels with drop weight impact machine. The damaged areas were investigated by visual inspection of impacted and non-impacted surfaces and by tomographic images. It was found that the replacement of certain carbon inner plies with glass ones and the modification of fiber orientation improved the damage resistance of the hybrid composites with aramid outer layers subjected to impact loading at 45J of energy level.

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Mechanics behavior and failure mechanism of the intralayer carbon/glass hybrid rod

Zhang,

Che,

Pei

et al. 2024

Polymer Composites

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The carbon/glass hybrid rod exhibits high tensile strength, light weight, and strong corrosion resistance. However, the bottleneck of interlayer splitting exists in the interlayer hybrid rod, severely impeding safe operation. To solve the problem of rod splitting, this paper proposed a new scheme of an intralayer carbon/glass hybrid rod. Based on the material constitutive model, a full‐scale simulation model was developed. The stress distribution and deformation of the hybrid rod were analyzed and the progressive damage mechanism of the hybrid rod was explained. The results indicated that, for the intralayer carbon/glass hybrid rod, (a) the ultimate experimental tensile load witnessed a significant increase, rising by 14.0% from 452.4 to 515.7 kN compared to the interlayer hybrid rod; (b) the numerical model predicted the tensile load of 525.9 kN, with an error of 1.9% compared to the test result, meeting engineering accuracy requirements; (c) the elastic deformation stage saw a 146.7% increase from 280.2 to 691.3 MPa in the maximum axial stress of the carbon‐fiber layer, and a 120% increase from 89.8 to 198.0 MPa in the maximum radial stress of the glass fiber layer as the tensile displacement increased from 0.16 to 0.32 mm. In conclusion, the intralayer carbon/glass hybrid rod proposed in this paper can significantly improve the tensile strength compared to the interlayer hybrid rod, which can accelerate the application of carbon/glass hybrid rods in oil and gas fields.Highlights According to the problem of interlayer splitting in the interlayer carbon/glass hybrid rods, a novel scheme of an intralayer carbon/glass hybrid rod was proposed. Based on the material constitutive model, a full‐scale simulation model of an intralayer carbon/glass hybrid rod was developed to analyze the stress distribution and deformation response under tensile load. The dynamic progressive damage analysis method for intralayer carbon/glass hybrid rods was proposed to reveal the damage evolution mechanism.

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Tensile post-impact behaviour of thin carbon/epoxy and glass/epoxy hybrid woven laminates – Part I: Experimental study

Cited by 8 publications

References 37 publications

Study of post-impact behaviour of thin carbon/epoxy laminates subject to fatigue tensile loading

Study of post-impact behaviour of thin carbon/epoxy laminates subject to fatigue tensile loading

An Experimental Study on the Low Velocity Impact Behavior of Hybrid Epoxy Composites

Mechanics behavior and failure mechanism of the intralayer carbon/glass hybrid rod

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