Flexural fatigue behaviour of random continuous-fibre-reinforced thermoplastic composites

Caprino, G.; D’Amore, Alberto

doi:10.1016/s0266-3538(97)00221-2

Cited by 87 publications

(64 citation statements)

References 8 publications

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“…Based exclusively on the Wöhler curve obtained at RH50 on [(0/90) 3 ] fabric, the model is able to predict correctly the fatigue life of GFRPA66 for any other fabric orientation and conditioning.…”

Section: Resultsmentioning

confidence: 99%

“…The fibre mass fraction (m f ) is equal to 0.63 and the void content is below 1%. The resulting composite plates are characterised by a density of 1.78 g/cm 3 . The material is provided as plates of 1.53 mm thick and coupons are cut using water jet cutting technique.…”

Section: Tested Materialsmentioning

confidence: 99%

“…The model gives a very good fitting to experimental data, proving its ability to be used in order to evaluate the fatigue life of a composite mini-structure. Additional fatigue tests on mini-structures with a different fabric orientation, [(±45) 3 ] for instance, could be used in order to validate the semi-empirical model for a different fibre orientation. This could also validate the initial choice of using the local stress in the z direction.…”

Section: -Point Bending Fatiguementioning

confidence: 99%

“…In the context of this study, fatigue life models seem to be particularly appropriate since they allow the direct determination of the number of cycles at failure for a given set of experimental conditions [2,3,4].…”

Section: Introductionmentioning

confidence: 99%

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Fatigue behaviour of open-hole samples and automotive mini-structures made of woven glass-fibre-reinforced polyamide 6,6

et al. 2018

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Abstract. In the automotive industry, the integration of thermoplastic composite components represents a high-potential solution to the mass reduction challenge. In this study, a woven glassfibre-reinforced composite with a polyamide 6,6 matrix is considered for the purpose of being integrated into automotive parts. Tension-tension fatigue tests were conducted on [(0/90) 3 ] openhole samples. These tests were instrumented with non-destructive techniques, namely acoustic emission and infrared thermography. Acoustic emission results showed fibre-matrix debonding and fibre breakages in open-hole samples, located around the hole. Furthermore, 3-point bending fatigue tests were performed on "omega" mini-structures. A semi-empirical model was used in order to predict the fatigue lives of both open-hole coupons and automotive mini-structures. Predictions of the model for open-holes samples underestimate experimental fatigue lives. Nevertheless, the semiempirical model showed good results for the fatigue life prediction of composite mini-structures.

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Section: Resultsmentioning

confidence: 99%

Section: Tested Materialsmentioning

confidence: 99%

Section: -Point Bending Fatiguementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fatigue behaviour of open-hole samples and automotive mini-structures made of woven glass-fibre-reinforced polyamide 6,6

et al. 2018

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“…Caprino and D'Amore (1998) have proposed a two-parameter model, which eventually proved insufficient due to its lack of feasibility in a relation between the strength and the number of the cycles. Beaumont (1992a, 1992b) have developed a model based on interactive matrix cracking which explains the effect of fatigue loading by relating post-fatigue strength and stiffness of notched fiber composites.…”

mentioning

confidence: 99%

Fatigue Life and Residual Strength prediction of GFRP Composites: An Experimental and Theoretical approach

Ganesan

Joanna

2018

Lat. Am. j. solids struct.

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This paper presents the fatigue behavior of Glass Fiber Reinforced Polymer (GFRP) composites at constant amplitude tension-tension loading conditions. A two parameter residual strength and fatigue life model has been proposed by accounting the effect of stress ratio when the structure undergoes continuous loading. A model is also developed to predict the fatigue life of GFRP composites based on fatigue endurance limit. Experiments were conducted on GFRP composite specimens to predict fatigue life and residual strength at various stress levels. Tests were also conducted to gain an understanding of the tensile behavior of GFRP composite specimens under different quasistatic strain rates. The lowest tensile strength resulting from strain rate studies has been used ultimately for conducting fatigue life and residual strength tests. Reliability of the proposed models has been verified with experimental results and with the models seen in literature.

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Fatigue of Composites—Life Prediction Methods

Kawai

2012

Wiley Encyclopedia of Composites

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This article discusses engineering methods for predicting fatigue lives of unnotched and notched composites under constant amplitude loading conditions. It reviews experimental and theoretical attempts to model the fatigue strengths of composites, with a particular emphasis on the significant progress in the area. The discussions for unnotched composites include the empirical S ‐ N curve approach, the master S ‐ N curve approach, the fatigue residual strength approach and the constant fatigue life diagram approach. It follows discussions on pioneering analytical procedures for predicting the S ‐ N curves for notched composites. Comparisons between predicted and experimental results are also presented.

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Flexural fatigue behaviour of random continuous-fibre-reinforced thermoplastic composites

Cited by 87 publications

References 8 publications

Fatigue behaviour of open-hole samples and automotive mini-structures made of woven glass-fibre-reinforced polyamide 6,6

Fatigue behaviour of open-hole samples and automotive mini-structures made of woven glass-fibre-reinforced polyamide 6,6

Fatigue Life and Residual Strength prediction of GFRP Composites: An Experimental and Theoretical approach

Fatigue of Composites—Life Prediction Methods

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