The effect of the fiber/matrix interface on the flexural fatigue performance of unidirectional fiberglass composites

Shih, G.C.; Ebert, L. J.

doi:10.1016/0266-3538(87)90095-9

Cited by 54 publications

(21 citation statements)

References 16 publications

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“…The relations of the debond rate and debond length with the number of cycles (Figs. 4,6,9 and 10) show that no matter what kind of the loading conditions is, interfacial damage for FRM composites under cyclic loading undergoes three stages. Debonding will not occur at the first stage.…”

Section: Modeling Of Interfacial Debonding Under Cyclic Loadingmentioning

confidence: 97%

“…Some experimental investigations also found that the responses of FRM composites under conditions of cyclic loading are quite different from that under monotonic loading [5][6][7][8][9][10]. For example, the fatigue resistance of SiC fiber-reinforced Ti alloy composites is reduced significantly due to SiC fiber fractured at an early stage of fatigue [9,10].…”

Section: Introductionmentioning

confidence: 99%

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Micromechanical damage modeling of fiber/matrix interface under cyclic loading

Shi

Chen

Zhou³

2005

Composites Science and Technology

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Section: Modeling Of Interfacial Debonding Under Cyclic Loadingmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Micromechanical damage modeling of fiber/matrix interface under cyclic loading

Shi

Chen

Zhou³

2005

Composites Science and Technology

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“…Shih and Ebert in a different study on unidirectional glass fiber reinforced plastic found that strong fibre/ matrix interface improves the flexure fatigue performance of the composite [10]. Caprino and Giorleo proposed a model for four-point bending fatigue behavior of glass fiber reinforced plastic composites [11]. The model is shown to be able to account for the effect of stress ratio on the fatigue lifetime.…”

Section: Introductionmentioning

confidence: 95%

A comparative study of failure features in aerospace grade unidirectional and bidirectional woven CFRP composite laminates under four-point bend fatigue loads

Kumar

Ambresha

Panbarasu

et al. 2015

Mat.-wiss. u. Werkstofftech

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Damage mechanisms in unidirectional (UD) and bi-directional (BD) woven carbon fiber reinforced polymer (CFRP) laminates subjected to four point flexure, both in static and fatigue loadings, were studied. The damage progression in composites was monitored by observing the slopes of the load vs. deflection data that represent the stiffness of the given specimen geometry over a number of cycles. It was observed that the unidirectional composites exhibit gradual loss in stiffness whereas the bidirectional woven composites show a relatively quicker loss during stage II of fatigue damage progression. Both, the static and the fatigue failures in unidirectional carbon fiber reinforced polymer composites originates due to generation of cracks on compression face while in bidirectional woven composites the damage ensues from both the compression and the tensile faces. These observations are supported by a detailed fractographic analysis.Keywords: composites / four point bending fatigue / fracture / scanning electron microscope Schlüsselwörter: Verbundwerkstoffe / Vier-Punkt-Biegung / Bruch / Rasterelektronenmikroskop

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“…While the properties of the fibre and matrix are obviously important governing factors of the failure process, it is the interfacial bond behaviour which ultimately determines the synergism of fibre and matrix properties as they blend together to produce composite behaviour. Investigations of fracture phenomena of FRP composite materials have demonstrated that interface behaviour affects composite stlttness [1,2], strength [3,4], toughness [3,4], fatigue resistance [5], and environmental stability [6][7][8]. The importance of interfacial bond behaviour is summed up by Drzal [7] who concludes that "the exact nature of this region (interfacial bond region) must be understood if accurate life prediction models (of composite behaviour) are to be developed".…”

Section: Introductionmentioning

confidence: 99%

Fatigue behaviour characterization of the fibre-matrix interface

1989

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The fracture behaviour of FRP composite materials is significantly influenced by the behaviour of the fibre-matrix interfacial bond. Thus far interfacial bond mechanical characterization has been based upon the critical strength and critical fracture energy of debonding. Characterization of the fatigue behaviour of the interfacial debonding process, however, may be more valuable for composite design and fibre-matrix selection. A fracture mechanics model of interfacial bond fatigue based on the mode II strain energy release rate (G.~) is presented. An expression for G, is derived for a single fibre in matrix cylinder model. By fitting the model to single fibre pull-out fatigue test data, fatigue crack propagation plots for specific fibre-matrix combinations can be drawn. These should prove useful for the development of fatigue resistant FRP composite materials.

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The effect of the fiber/matrix interface on the flexural fatigue performance of unidirectional fiberglass composites

Cited by 54 publications

References 16 publications

Micromechanical damage modeling of fiber/matrix interface under cyclic loading

Micromechanical damage modeling of fiber/matrix interface under cyclic loading

A comparative study of failure features in aerospace grade unidirectional and bidirectional woven CFRP composite laminates under four-point bend fatigue loads

Fatigue behaviour characterization of the fibre-matrix interface

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