The effects of strain-rate and temperature on the interlaminar fracture toughness of interleaved PEEK/CF composites

Fracasso, R; Rink, M.; Pavan, A.; Frassine, R.

doi:10.1016/s0266-3538(00)00153-6

Cited by 47 publications

(23 citation statements)

References 19 publications

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“…They are still able to use the characteristic points in the ASTM standard (NL, 5% and P max ). Such stick slipping was also reported in [5] for a fabric reinforced PEEK and in [11] for a UD composite, but for the latter, the effect was due to the low temperature, influencing the PEEK matrix. Furthermore, it may be noted that despite the unstable growth, the reproducibility is quite high, both for these experiments and others, not shown here.…”

Section: Mode I Double Cantilever Beam Experimentssupporting

confidence: 53%

“…However, not that many studies have already been performed on both the Mode I and Mode II crack propagation for a fabric reinforced thermoplastic, as is the subject of the underlying manuscript. In a study by Fracasso et al [5], the emphasis was on the effect of temperature and strain rate on the values of the Mode I and Mode II fracture toughness. Zenasni et al [6,7] have performed a similar study as described here.…”

Section: Introduction and Principlementioning

confidence: 99%

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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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Section: Mode I Double Cantilever Beam Experimentssupporting

confidence: 53%

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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“…7). This toughening effect has been observed experimentally in composite laminates produced with the interleaving technique [14,15].…”

Section: Matrix Layer Thickness and Development Of The Plastic Procesmentioning

confidence: 55%

“…It can be observed that the calculated values greatly overestimate the experimental data. The interface decohesion energy obtained from the interface law is equal to about 4.5 kJ/m 2 while the mode-I interlaminar fracture energy experimentally determined from the DCB testing is equal to about 2 kJ/m 2 (see [14]). …”

Section: Methodsmentioning

confidence: 91%

Modelling of interlaminar fracture processes in composites using interface elements

Bianchi

Corigliano

Frassine

et al. 2006

Composites Science and Technology

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“…The strength and viscoelastic properties have the same equivalent factor [2,3], which is called the shift factor [1]. Recent studies on the timetemperature dependence of the fracture toughness [6][7][8][9][10][11][12][13][14][15] have shown that the fracture toughness has the same shift factor as the viscoelastic properties [10,11], yield stress [12][13][14][15] and strength [6].…”

Section: Introductionmentioning

confidence: 99%

Time-temperature dependence of fracture toughness for bisphenol a epoxy resin

Araki

Adachi

Gamou

et al. 2002

Proceedings of the Institution of Mechanical Engineers, Part L:

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The relationship between the curing conditions and the time-temperature dependence of fracture toughness was investigated for bisphenol A epoxy resin. The glass transition temperature and Angell's fragility parameter, which are obtained from thermoviscoelasticity measurements, were used to characterize epoxy resins cured under various conditions. Examination of the fracture toughness at various temperatures and displacement rates showed that it depends on both temperature and time, and that it follows the time-temperature equivalence principle. The time-temperature dependence of the fracture toughness was greatly affected by the fragility parameter. The fracture toughness of the resin with a smaller fragility parameter increased from lower temperatures to the brittle-ductile transition temperature than that of the resin with a larger fragility parameter when their glass transition temperatures were approximately 400 K. It was also found that the brittle-ductile transition temperature did not depend on the fragility parameter. This means that epoxy resin with a smaller fragility parameter has better fracture characteristics than epoxy resin with a larger fragility parameter if their glass transition temperatures are approximately 400 K.

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The effects of strain-rate and temperature on the interlaminar fracture toughness of interleaved PEEK/CF composites

Cited by 47 publications

References 19 publications

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

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

Modelling of interlaminar fracture processes in composites using interface elements

Time-temperature dependence of fracture toughness for bisphenol a epoxy resin

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