Synergistic fibre strengthening in hybrid composites

Aveston, J.; Sillwood, J. M.

doi:10.1007/bf00708266

Cited by 77 publications

(33 citation statements)

References 4 publications

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“…Manders and Bader (1981) reported that the increase in strain at CF rupture in sandwich laminated hybrids would be about 50 % of that of single CF, and Aveston and Sillwood (1976) also experimentally confirmed that the strain at CF rupture of hybrid carbon-glass-epoxy composites could be increased up to about 0.01. Furthermore, Miwa and Horiba (1994) suggested the empirical rule of ''hybrid'' mixtures as:…”

Section: Introductionmentioning

confidence: 82%

“…1). To improve the ductility of the fibers, a number of composite material science investigations have been conducted on hybrid fibrous composites (e.g., Bunsell and Harris 1974;Phillips 1976;Aveston and Sillwood 1976;Marom et al 1978;Chou and Kelly 1980;Manders and Bader 1981;Miwa and Horiba 1994;Pan and Postle 1996). Applications of hybrid FRP composites, such as hybrid FRP bars and sheets combined with concrete, have been studied by several researchers (e.g., Nanni et al 1994;Harris et al 1998;Grace et al 2002).…”

Section: Introductionmentioning

confidence: 99%

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Hybrid Effects of Carbon-Glass FRP Sheets in Combination with or without Concrete Beams

Kang

Kim

et al. 2014

Int J Concr Struct Mater

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The use of carbon fibers (CF) and glass fibers (GF) were combined to strengthen concrete flexural members. In this study, data of tensile tests of 94 hybrid carbon-glass FRP sheets and 47 carbon and GF rovings or sheets were thoroughly investigated in terms of tensile behavior. Based on comparisons between the rule of mixtures and test data, positive hybrid effects were identified for various (GF/CF) ratios. Unlike the rule of mixtures, the hybrid sheets with relatively low (GF/CF) ratios also produced pseudo-ductility. From the calibrated results obtained from experiments, a new analytical model for the stress-strain relationship of hybrid FRP sheets was proposed. Finally, the hybrid effects were verified by structural tests of concrete members strengthened with hybrid FRP sheets and either carbon or glass FRP sheets.

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Section: Introductionmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Hybrid Effects of Carbon-Glass FRP Sheets in Combination with or without Concrete Beams

Kang

Kim

et al. 2014

Int J Concr Struct Mater

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“…Qiu and Schwartz [22] reported that Phillips' baseline for hybrid fatigue resistance [20] was dubious. The failure strain enhancement of 100%, reported by Aveston and Sillwood [23], is quoted by Manders and Bader [14] to be caused by a wrong definition for the failure strain of the hybrid composite. This type of discussions in the seventies and early eighties are well illustrated by Phillips [18,20] and the letter by Marom and Wagner, with corresponding reply by Phillips [19].…”

Section: Introductionmentioning

confidence: 99%

Fibre hybridisation in polymer composites: A review

Swolfs

Gorbatikh

Verpoest

2014

Composites Part A: Applied Science and Manufacturing

719

462

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Fibre-reinforced composites are rapidly gaining market share in structural applications, but further growth is limited by their lack of toughness. Fibre hybridisation is a promising strategy to toughen composite materials. By combining two or more fibre types, these hybrid composites offer a better balance in mechanical properties than non-hybrid composites. Predicting their mechanical properties is challenging due to the synergistic effects between both fibres. This review aims to explain basic mechanisms of these hybrid effects and describes the state-of-the-art models to predict them. An overview of the tensile, flexural, impact and fatigue properties of hybrid composites is presented to aid in optimal design of hybrid composites. Finally, some current trends in fibre hybridisation, such as pseudoductility, are described.

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“…Hybrids are usually made up of two different types of fibres and in many of the previous studies, carbon and glass layers were the constituents [1][2][3][4][5]. Since the failure strain of carbon fibres is lower than glass fibres, the first damage is certainly in the carbon layer but the final failure of the specimen depends on other material properties, interface toughness and the thickness of the layers.…”

Section: Introductionmentioning

confidence: 99%

Numerical modelling of the damage modes in UD thin carbon/glass hybrid laminates

Jalalvand

Czél

Wisnom

2014

Composites Science and Technology

112

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This paper proposes a new FE-based approach for modelling all of the possible damage modes in glass/carbon UD hybrid laminates in tensile loading. The damage development is modelled by two sets of cohesive elements, (i) periodically embedded in the carbon layer for modelling carbon fibre failure and (ii) at the glass/carbon interface to capture delamination. The analysis is stopped when the glass layer failure is predicted by integrating the stress distribution over the glass layer to calculate an equivalent stress for unit volume of the glass. The proposed method is validated against the experimental results and then used to simulate the progressive damage process of other hybrid configurations and finally produce a damage-mode map for this material set. The method can easily be applied to other hybrids to assess their performance by producing damage-mode maps.

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Synergistic fibre strengthening in hybrid composites

Cited by 77 publications

References 4 publications

Hybrid Effects of Carbon-Glass FRP Sheets in Combination with or without Concrete Beams

Hybrid Effects of Carbon-Glass FRP Sheets in Combination with or without Concrete Beams

Fibre hybridisation in polymer composites: A review

Numerical modelling of the damage modes in UD thin carbon/glass hybrid laminates

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