Interlaminar fracture toughness and toughening of laminated composite materials: a review

Sela, N.; Ishai, O.

doi:10.1016/0010-4361(89)90211-5

Cited by 349 publications

(132 citation statements)

References 18 publications

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“…elamination, or interlaminar fracture, is a major failure mode for composite laminates, which still attracts researchers' attention despite the huge number of dedicated studies during the last decades [1][2][3][4][5]. Since the earlier works, it has been recognised that the structural behaviour of a laminate affected by delamination can be analysed by schematising the laminate as an appropriate assemblage of sublaminates [6,7].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Shear on Mode II Delamination

Valvo

2018

Frattura Ed Integrità Strutturale

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ABSTRACT. The paper focuses on the effects of shear deformation and shear forces on the mode II contribution to the energy release rate in delaminated beams. A critical review of the relevant literature is presented, starting from the end-notched flexure test as the prototype of delaminated laminates subjected to pure mode II fracture. Several models of the literature are recalled from simple beam theory to more refined models. The role of first-order shear deformation in line with the Timoshenko beam theory is investigated as distinct from the local crack-tip deformation related to the shear modulus of the material. Then, attention is moved on to a general delaminated beam with an arbitrarily located through-the-width delamination, subjected to mixedmode fracture. Several fracture mode partition methods of the literature are reviewed with specific attention on the effects of shear on the mode II contribution to the energy release rate.KEYWORDS. Delamination; Mixed-mode fracture; Mode II fracture; Beam theory; Shear deformation; End-notched flexure test.Citation: Valvo, P.S., The effects of shear on Mode II delamination: a critical review,

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Section: Introductionmentioning

confidence: 99%

The Effects of Shear on Mode II Delamination

Valvo

2018

Frattura Ed Integrità Strutturale

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“…As such, there are already a lot of studies dedicated to the interlaminar behaviour of fibre reinforced polymers, as illustrated in various literature reviews [1,2,3,4]. In most cases, unidirectional reinforcement is considered, quite often in combination with epoxymatrices.…”

Section: Introduction and Principlementioning

confidence: 99%

Study of the Mode I and Mode II interlaminar behaviour of a carbon fabric reinforced thermoplastic

et al. 2012

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A delamination or an interlaminar failure is a critical failure mechanism for fibrereinforced composites and, therefore, has already been studied extensively by many researchers. However, it remains an actual research topic, since every day, new polymers with better mechanical properties are being developed for fibre reinforced composites. This manuscript describes an experimental study of both the Mode I and Mode II interlaminar behaviour of a 5-harness satin weave carbon fabric reinforced polyphenylene sulphide (PPS). The mode I crack growth is studied using the Double Cantilever Beam (DCB) setup, whereas the mode II behaviour was studied by the End Notch Flexure (ENF) test. For mode I, an unstable crack-growth was seen resulting in a saw-tooth like force-displacement curve. Therefore, a model based on Linear Elastic Fracture Mechanics was considered to determine G IC for both initiation and propagation. Furthermore, the effect of possible fibre-bridging was assessed and an online microscopic study was conducted so that the origin of the specific jumps in crack growth could be determined. For mode II, stable crack propagation occurred and the Compliance-Based Beam Method was used to determine G IIC for both initiation and propagation. It could be concluded that the considered approach worked well for this material and reproducible results and values were found.

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“…The impact energy is dissipated by fiber and/or matrix fracture, fiberdebonding and pulls out. Ifthe applied load on a composite exceeds the interfacial bond strength, fiber-matrix debondingresults which lead to ultimate failure of composite [12][13][14].…”

Section: Effect Of Glass Fiber On Impact Strength Of Nfrc a Impamentioning

confidence: 99%

Effects of Glass Fiber on the Mechanical Properties of Hybrid Bocomposite: A Review

Mittal¹

2017

IJRASET

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Application of biocomposites is rapidly increasing in various sectors caused by technical, environmental, and economic advantages. Hybridization with synthetic fibers makes them suitable for structural applications such as automobile, aerospace, and constructional work etc. This article focussed on the effects of glass fiber on mechanical properties of PALF, sisal, OPEFB, hemp, and kenaffibers.Outcomes show that addition of glass fiber in biocomposite material lead to increases the tensile, flexural, and impact properties of NFC's.

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Interlaminar fracture toughness and toughening of laminated composite materials: a review

Cited by 349 publications

References 18 publications

The Effects of Shear on Mode II Delamination

The Effects of Shear on Mode II Delamination

Study of the Mode I and Mode II interlaminar behaviour of a carbon fabric reinforced thermoplastic

Effects of Glass Fiber on the Mechanical Properties of Hybrid Bocomposite: A Review

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