Effect of Stress Ratio on the Flexural Fatigue Behaviour of Continuous Strand Mat Reinforced Plastics

D’Amore, Alberto; Caprino, G.; Stupak, P.R.; Zhou, Jiang; Nicolais, L.

doi:10.1515/secm.1996.5.1.1

Cited by 67 publications

(58 citation statements)

References 10 publications

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“…Thus, they do not take into account damage accumulation, but predict the number of cycles at which fatigue failure occurs under fixed loading conditions. Along this line in previous work, D'Amore et al [3] hypothesized that the residual strength undergoes a continuous decay, following a power law, for their damage law. The strength decay was essentially attributed to the cyclic stress.…”

Section: Introductionmentioning

confidence: 74%

“…In D'amore et al [3] a two parameter model was proposed for the prediction of the fatigue lifetime of Random Glass Fiber Reinforced Plastics [RGFRP]. The starting point of the model is the hypothesis that the material strength undergoes a continuous decrease with fatigue cycle evolution, according to the power law:…”

Section: Analytical Backgroundmentioning

confidence: 99%

“…In References [3][4][5] the model reliability was proved describing the classical S-N curves for both glass reinforced thermoplastic and thermosetting matrices. However, the mechanisms of damage accumulations and failure in glass reinforced plastics are different from those observed in graphite/epoxy laminates, where matrix splitting accumulation and delamination play an important role in determining the final collapse.…”

Section: Model Reliabilitymentioning

confidence: 99%

“…In fact, the fatigue behavior of composites is very peculiar, resulting in the accumulation of diffuse damage having different origin and location, rather than the propagation of a single crack as in metals. Fiber fracture, matrix cracking, matrix crazing, fiber buckling, fiber-matrix interface failure and delamination are interacting sources of failures showing different growth rates [1][2][3][4][5][6][7][8]. Further the fatigue lifetime of composite materials is influenced primarily from the matrix and fibers type, the geometry of reinforcement (unidirectional, mat, fabric, braiding), the laminate stacking sequence, the environmental conditions (mainly temperature and moisture), the loading history (stress ratio, R, cyclic frequency..) and boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

“…In this respect, this paper presents a re-elaboration of static and fatigue data available in literature [37,38] concerning carbon fiber reinforced laminates. The data were used to obtain the parameters of a recent model [3] accounting for both mean stress and stress amplitude. The model reliability is discussed highlighting the limits of its applicability.…”

Section: Introductionmentioning

confidence: 99%

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Modeling the Strength Degradation and Fatigue of Carbon Fiber Rein-forced Composites

Verde

2012

TOMSJ

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Abstract. Static and fatigue data available in literature concerning carbon fiber reinforced composite laminates subjected tension-tension fatigue were re-elaborated in the framework of a two-parameter fatigue model explicitly accounting for the cyclic as well as the mean stress. The data were used to obtain the model parameters by best fitting procedures. A primitive statistical implementation of the model was based on the hypothesis that the monotonic tensile strength follows a two-parameter Weibull distribution. The model has the potential of being predictive indicating that the fatigue characterization of given laminate can be achieved with a minimum of experimental tests. The model reliability and its applicability limits are discussed.

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Section: Introductionmentioning

confidence: 74%

Section: Analytical Backgroundmentioning

confidence: 99%

Section: Model Reliabilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modeling the Strength Degradation and Fatigue of Carbon Fiber Rein-forced Composites

Verde

2012

TOMSJ

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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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Describing the Flexural Behaviour of Cross-ply Laminates Under Cyclic Fatigue

Mahi

Bezazi

2008

Appl Compos Mater

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The objective of this work is to derive modelling of the fatigue behaviour of cross-ply laminates from the experimental results obtained in the case of three-point bending tests. Modelling the fatigue behaviour is based on the stiffness reduction of test specimens. Firstly, experimental results are described using interpolation functions. Then, the characteristic coefficients of these functions are studied as function of the laminate properties and loading conditions. This approach allows to predict the fatigue life of composite laminates while avoiding a large number of fatigue tests. Wöhler curves are used to compare the experimental and analytical results, and a good agreement is found between the results. Next, a simple approach is considered to define a damage parameter. It is based on the analogy between the mechanical behaviour and the fatigue damage evolution of composite laminates during fatigue tests. The developed models are applied to analyse the influence of constituents on the fatigue behaviour and damage development of composite materials under fatigue loading.

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Effect of Stress Ratio on the Flexural Fatigue Behaviour of Continuous Strand Mat Reinforced Plastics

Cited by 67 publications

References 10 publications

Modeling the Strength Degradation and Fatigue of Carbon Fiber Rein-forced Composites

Modeling the Strength Degradation and Fatigue of Carbon Fiber Rein-forced Composites

Fatigue of Composites—Life Prediction Methods

Describing the Flexural Behaviour of Cross-ply Laminates Under Cyclic Fatigue

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