A fatigue damage accumulation model based on stiffness degradation of composite materials

Shiri, Saeed; Yazdani, Mojtaba; Pourgol-Mohammad, Mohammad

doi:10.1016/j.matdes.2015.09.114

Cited by 85 publications

(48 citation statements)

References 23 publications

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“…In order to simulate the fatigue damage behavior and to predict fatigue life of fiber-reinforced composites, in recent years several methodologies that implement progressive failure analysis and appropriate constitutive models with damage accumulation laws have been developed. In open literature, fatigue progressive damage models have been extensively established from macro to microscopic scales by means of theoretical analysis methods, finite element solutions and experiments [10][11][12][13][14][15][16][17]. Montesano et al [18] have established a damage mechanics based model that takes into account local multiaxial stresses as well as variable amplitude cyclic loading.…”

Section: Introductionmentioning

confidence: 99%

A fatigue damage meso-model for fiber-reinforced composites with stress ratio effect

et al. 2016

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This work presents a fatigue damage meso-model for fiber-reinforced plastic composites, in which the effect of stress ratios on the off-axis fatigue behavior is taken into account. The non-dimensional effective stress concept is introduced in the continuum damage mechanics method. Damage growths and fatigue failure are studied along axial, transverse and shear directions at meso-scale level. The proposed model is validated through numerical simulations that describe the meso fatigue damage accumulation and the fatigue life for off-axis unidirectional fiber-reinforced plastic composite laminates of arbitrary fiber orientation under different stress ratios. It is shown that the fatigue damage behavior and fatigue life for off-axis unidirectional glass/epoxy and carbon/ epoxy composite laminates are adequately described by the proposed fatigue model over the range of different stress ratios.

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Section: Introductionmentioning

confidence: 99%

A fatigue damage meso-model for fiber-reinforced composites with stress ratio effect

et al. 2016

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“…It should be noticed that the main damage mechanisms observed in composites laminates under fatigue loading can also be divided into three main stages [29,34], as shown in Fig. 2.…”

Section: Definition Of Damage Indexmentioning

confidence: 99%

“…T matrix interface cracking, fiber breakage and delamination [29]. According to the literature [30][31][32][33][34][35][36], with damage accumulation in laminates, the stiffness and strength degrade obviously. Thus, residual stiffness and strength are frequently used to define damage parameters.…”

Section: Introductionmentioning

confidence: 99%

A new model for fatigue life prediction based on infrared thermography and degradation process for CFRP composite laminates

Huang

Pastor

Girard

et al. 2019

International Journal of Fatigue

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In this paper, a new fatigue life prediction methodology is proposed by combining stiffness degradation and temperature variation measured by InfraRed Thermographic (IRT) camera. Firstly, the improved thermographic method is used to determine the fatigue limit by using the data of stabilized temperature rising. Following this, a two-parameter model is proposed to characterize the stiffness degradation of CFRP laminates with the increase of cycle numbers. After the calibration parameters and the calculation of the normalized failure threshold stiffness, the whole − S N curve can be obtained in a very short time. The proposed model is applied to both the experimental data of triaxially braided CFRP laminates from literature and those of unidirectional CFRP laminates obtained from our fatigue tests. Results show that predicted − S N curves have a good agreement with traditional tests. The principal interests of this model could be listed as follows: (i) it is a more general criterion applicable to different materials; (ii) it has more physical senses; (iii) it allows the determination of the total S-N curve for composite materials in a short time.

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“…As discussed, despite the fact that extensive theoretical and experimental research have been conducted to study on the basic FRP properties, the accumulative fatigue damage model considering thermal effect have not been fully developed yet. More recently, a fatigue-damage model was proposed to assess the stiffness degradation in composite materials, and under a wide range of loading levels [Shiri, Yazdani and Pourgol-Mohammad (2015)]. An experimental work including static and fatigue tests demonstrated that different off-axis directions had different properties for multidirectional glass/polyester laminates [Philippidis and Vassilopoulos (1999)].…”

Section: Introductionmentioning

confidence: 99%

A Fatigue Damage Model for FRP Composite Laminate Systems Based on Stiffness Reduction

Zhang¹,

Noori²,

Altabey³

et al. 2019

Structural Durability &Amp; Health Monitoring

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This paper introduces a stiffness reduction based model developed by the authors to characterize accumulative fatigue damage in unidirectional plies and (0/θ/0) composite laminates in fiber reinforced polymer (FRP) composite laminates. The proposed damage detection model is developed based on a damage evolution mechanism, including crack initiation and crack damage progress in matrix, matrix-fiber interface and fibers. Research result demonstrates that the corresponding stiffness of unidirectional composite laminates is reduced as the number of loading cycles progresses. First, three common models in literatures are presented and compared. Tensile viscosity, Young's modulus and ultimate tensile stress of composites are incorporated as key factors in this model and are modified in accordance with temperature. Four types of FRP composite property parameters, including Carbon Fiber Reinforced Polymer (CFRP), Aramid Fiber Reinforced Polymer (AFRP), Glass Fiber Reinforced Polymer (GFRP), and Basalt Fiber Reinforced Polymer (BFRP), are considered in this research, and a comparative parameter study of FRP unidirectional composite laminates with different off-angle plies using control variate method are discussed. It is concluded that the relationship between the drop in stiffness and the number of cycles also shows three different regions, following the mechanism of damage of FRP composites and the matrix is the dominant factor determined by temperature, while fiber strength is the dominant factor that determine the reliability of composite.

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A fatigue damage accumulation model based on stiffness degradation of composite materials

Cited by 85 publications

References 23 publications

A fatigue damage meso-model for fiber-reinforced composites with stress ratio effect

A fatigue damage meso-model for fiber-reinforced composites with stress ratio effect

A new model for fatigue life prediction based on infrared thermography and degradation process for CFRP composite laminates

A Fatigue Damage Model for FRP Composite Laminate Systems Based on Stiffness Reduction

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