A micromechanics model for the prediction of fatigue characteristics of off-axis unidirectional laminates

Subramanian, S.; Reifsnider, KL; Stinchcomb, WW

doi:10.1007/bf00567212

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…A survey in the literature reveals that numerous numerical and empirical models have been proposed to predict composites fatigue responses which are all based on a great amount of experimentally generated data. [1][2][3][4][5] Due to anisotropy and heterogeneity of fiber-reinforced composite materials, their fatigue life prediction is still a challenging task after five decades of research.…”

Section: Introductionmentioning

confidence: 99%

“…Reifsnider and Gao 1 established a micro-mechanical fatigue criteria based on an average stress formulation of composite materials derived from the Mori-Tanaka method. Subramanian et al 2 used the concentric cylinders model to predict the fatigue characteristics of off-axis unidirectional (UD) laminates. The averaged stresses along the radial distance in each constituent phase were applied to predict the S-N curves of UD laminates.…”

Section: Introductionmentioning

confidence: 99%

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A progressive multi-scale fatigue model for life prediction of laminated composites

Kordkheili

Toozandehjani

Soltani

2017

Journal of Composite Materials

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This article presents a multi-scale progressive micro-mechanical fatigue model. The model employs fundamental equation of the kinetic theory of fracture to calculate damage parameters of both fiber and matrix during cyclic loading. In order to adapt the equation, required material coefficients of the constituents can be achieved from fatigue test results of longitudinal and transverse unidirectional composites, only. Sharing stress capacities of fiber and matrix are determined using a modified progressive micro-mechanical bridging model in the presence of damage. The damage parameters in the constituents are calculated employing two different equivalent scalars. However, during sinusoidal load application, these damage parameters are also updated using a first kind Bessel function of amplitude stresses in the constituents as well as their material coefficients. The enhanced formulation is then implemented into the commercial finite element software of ABAQUS via a developed user material (UMAT) subroutine utilizing a suitable failure criteria and an own solution algorithm. Advantages of the proposed model are assessed and comparisons with available solutions are presented.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A progressive multi-scale fatigue model for life prediction of laminated composites

Kordkheili

Toozandehjani

Soltani

2017

Journal of Composite Materials

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Multiscale analysis of fatigue crack initiation life for unidirectional composite laminates

Naderi

Michopoulos

Iyyer

et al. 2019

Composite Structures

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Fatigue Damage and Life Prediction of Glass/Vinyl Ester Composites

Kim

Zhang

2001

Journal of Reinforced Plastics and Composites

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Fatigue mechanisms and life time prediction of E-glass/vinyl ester composites are studied. Unnotched unidirectional composites subjected to tension-tension sinusoidal loading with a frequency of 1.5 Hz were employed. Quantitative damage data were obtained and analysed for the fatigue life prediction. S-N data and curve were constructed and fatigue mechanisms at different stress ranges were discussed in terms of stiffness reduction/fatigue modulus and quantitative damage. It was found that the micro-crack density increased logarithmically with increasing number of loading cycles. A model based on the fatigue modulus reduction was developed to predict an S-N curve using phenomenological parameters. The life time predictions were shown to be in good agreement with experimental results.

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A micromechanics model for the prediction of fatigue characteristics of off-axis unidirectional laminates

Cited by 3 publications

References 5 publications

A progressive multi-scale fatigue model for life prediction of laminated composites

A progressive multi-scale fatigue model for life prediction of laminated composites

Multiscale analysis of fatigue crack initiation life for unidirectional composite laminates

Fatigue Damage and Life Prediction of Glass/Vinyl Ester Composites

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