A comparative study of fatigue behaviour of flax/epoxy and glass/epoxy composites

Liang, Shaoxiong; Gning, Papa-Birame; Guillaumat, Laurent

doi:10.1016/j.compscitech.2012.01.011

Cited by 191 publications

(125 citation statements)

References 18 publications

(31 reference statements)

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“…For low loading levels, the fatigue behavior of the composite is the same, which means a long term life (Liang et al 2012). The hybrid fatigue failure appears to be highly dependent on the loading level imposed (Silva et al 2009).…”

Section: Fig 6 S-n Curve Of Tension-compression Fatiguementioning

confidence: 92%

“…In composite materials, fatigue damage always reduces the stiffness as opposed to the strength of the composite (Liang et al 2012). The stiffness degradation (F/F0) is calculated by dividing the maximum load (F) for the imposed displacement level on the load that was obtained at the first cycle (F0), to estimate the progression of damage under cyclic loading.…”

Section: Fig 6 S-n Curve Of Tension-compression Fatiguementioning

confidence: 99%

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Tension-Compression Fatigue Behavior of Plain Woven Kenaf/Kevlar Hybrid Composites

et al. 2016

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The applications of hybrid natural/synthetic reinforced polymer composites have been rapidly gaining market share in structural applications due to their remarkable characteristics and the fact that most of the components made of these materials are subjected to cyclic loading. Their fatigue properties have received a lot of attention because predicting their behavior is a challenge due to the effects of the synergies between the fibers. The purpose of this work is to characterize the tension, compression, and tensile-compression fatigue behavior of six layers of Kevlar hybridized with one layer of woven kenaf reinforced epoxy, at a 35% weight fraction. Fatigue tests were carried out and loaded cyclically at 60%, 70%, 80%, and 90% of their ultimate compressive stress. The results give a complete description for tensile and compression properties and could be used to predict fatigue-induced failure mechanisms.

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Section: Fig 6 S-n Curve Of Tension-compression Fatiguementioning

confidence: 92%

Section: Fig 6 S-n Curve Of Tension-compression Fatiguementioning

confidence: 99%

Tension-Compression Fatigue Behavior of Plain Woven Kenaf/Kevlar Hybrid Composites

et al. 2016

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“…The glass-based composites showed a steeper S-N diagram, which led to a more significant decrease in fatigue strength. In one study comparing the S-N curves of bidirectional flax and glass, glass had a steeper curve than flax composites (Liang et al 2012). bioresources.com Sharba et al (2016).…”

Section: Fig 4 Flexural Properties Of Compositesmentioning

confidence: 99%

Effects of Kenaf Fiber Orientation on Mechanical Properties and Fatigue Life of Glass/Kenaf Hybrid Composites

Sharba¹,

Leman²,

Sultan³

et al. 2015

BioResources

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The objectives of this work were to investigate the effect of kenaf fiber alignment on the mechanical and fatigue properties of kenaf/glass hybrid sandwich composites. Three types of kenaf fibers were used, namely, non-woven random mat, unidirectional twisted yarn, and plain-woven kenaf. A symmetric sandwich configuration was constructed with glass as the shell and kenaf as the core with a constant kenaf/glass weight ratio of 30/70% and a volume fraction of 35%. Tensile, compression, flexural, and fully reversed fatigue tests were conducted, and a morphological study of the tensile failure surface of each hybrid composite was carried out. The non-woven mat kenaf hybrid had poor properties for all tests, while the unidirectional kenaf hybrid composite possessed higher tensile strength and similar compressive properties compared with the woven kenaf. Hybridization with kenaf fibers improved the fatigue degradation coefficient of the final composites to 6.2% and 6.4% for woven and unidirectional kenaf, respectively, compared with 7.9% for non-woven. Because woven kenaf hybrid composite is lightweight, environment friendly, and has a considerable balance in static and fatigue strengths with low fatigue sensitivity in bidirectional planes compared to glass, it is strongly recommended for structural applications.

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“…UD glass fibre laminate with the highest fibre content loaded along fibre direction, exhibited the best fatigue resistance. In our previous study [17], the fatigue behaviours of flax/epoxy and glass/epoxy with the same stacking sequence and similar fibre volume fractions have been compared. It was shown that both materials have similar fatigue performance for low loading levels, i.e.…”

Section: Introductionmentioning

confidence: 99%

Properties evolution of flax/epoxy composites under fatigue loading

Liang

Gning²,

Guillaumat³

2014

International Journal of Fatigue

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. lay-ups. The Probabilized Stress-Number of cycles (P-S-N) curves have been determined for each laminate type. The measured stress and strain data allowed to quantify the evolution of the mechanical properties, i.e. stiffness, damping and permanent strain as a function of imposed cycles. Especially, the stiffening phenomenon of flax reinforcements oriented parallel to the loading direction has been confirmed. However, due to the competition between damage development and the fibre stiffening, the increase in the longitudinal Young's modulus was noticed on the composites depending on the ratio of fibres parallel to load direction.

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A comparative study of fatigue behaviour of flax/epoxy and glass/epoxy composites

Cited by 191 publications

References 18 publications

Tension-Compression Fatigue Behavior of Plain Woven Kenaf/Kevlar Hybrid Composites

Tension-Compression Fatigue Behavior of Plain Woven Kenaf/Kevlar Hybrid Composites

Effects of Kenaf Fiber Orientation on Mechanical Properties and Fatigue Life of Glass/Kenaf Hybrid Composites

Properties evolution of flax/epoxy composites under fatigue loading

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