Fatigue behavior of composite laminates with automated fiber placement induced defects- a review

Chevalier, Pierre L.; Kassapoglou, Christos; Gürdal, Zafer

doi:10.1016/j.ijfatigue.2020.105775

Cited by 18 publications

(2 citation statements)

References 66 publications

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“…The fatigue behavior of a material can be influenced by the location of the defect for two primary reasons: anisotropic material mechanical properties and variations in stress gradient 189,190 . The uniaxial USF test induces the greatest uniaxial stress in the central portion of the sample (as illustrated in Figure 5, the maximal stress consistently occurs in the middle of the hourglass standard sample).…”

Section: Failure Mechanismsmentioning

confidence: 99%

Very high cycle fatigue of fiber‐reinforced polymer composites: Uniaxial ultrasonic fatigue

Behvar,

Sojoodi,

Elahinia

et al. 2024

Fatigue Fract Eng Mat Struct

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This review explores uniaxial ultrasonic fatigue (USF) testing as a common and dependable method for quantifying the extended fatigue life of fiber‐reinforced polymer (FRP) composites. The objective is to explain the complexities governing the fatigue life behavior of FRPs, particularly in the realm of very high cycle fatigue (VHCF) where the number of loading cycles exceeds 107. To this end, this review encompasses the analysis of VHCF behavior, including the derivation and interpretation of stress–life (S–N) data, the evaluation of various fatigue damage mechanisms (i.e., controlling mechanisms of crack initiation and propagation) exhibited in FRP composites, and a thorough investigation of the frequency‐dependent effects on fatigue responses. Furthermore, this review tries to analyze the microscopic intricacies intrinsic to the VHCF failure of FRP composites, encompassing aspects such as fiber‐matrix de‐bonding, matrix cracking, and delamination, unveiling their modes and effects in a detailed manner. This review also underscores the pivotal integration of simulations, machine learning, and modeling techniques, emphasizing their crucial role in explaining both macroscopic and microscopic interactions governing the VHCF of FRPs.

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Section: Failure Mechanismsmentioning

confidence: 99%

Very high cycle fatigue of fiber‐reinforced polymer composites: Uniaxial ultrasonic fatigue

Behvar,

Sojoodi,

Elahinia

et al. 2024

Fatigue Fract Eng Mat Struct

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“…The defect content, a global parameter, is not sufficient to predict the quality of composites with defects. 19–21 However, the effect of defect location on the mechanical properties of 3D braided composites has never been reported. To ensure the safety of composites in use, it is necessary to improve our understanding of the effects of defects in different locations on the mechanical properties of the 3D braided composites.…”

mentioning

confidence: 99%

Failure behaviors of 3D braided composites with defects in different locations under low-velocity impact compression

Guo

Sun

et al. 2021

Textile Research Journal

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This paper aims to investigate the effects of the impurity defects in different locations on the transverse compressive behaviors of three-dimensional (3D) braided carbon fiber/epoxy composites under low-velocity impact. The composites with defects in different locations were prepared by placing polytetrafluoroethylene particles at the bottom surface, corner and center parts, respectively. The compression test was implemented with the drop-weight impact method. The failure morphologies were characterized using high-speed photography and micro computed tomography (Micro-CT). A mesoscale finite element model considering the defect was developed to enhance the physical understanding of the compression process. It is found that defects located at the corner zone and the central zone have a greater impact on the compression behavior of the 3D braided composite than the defect located at the bottom surface part. The defects at the corner and center zones reduce the compressive strength of the composite, increase the failure area, and cause severe damage to both the yarn and resin. In addition, the defect causes local stress concentration on the surrounding yarns. The defects in different locations cannot change the main shear failure mode of the 3D braided composite. It is shown that great attention should be given during the manufacturing or detection process to avoid such a deterioration effect of defects located in those zones on composite strength.

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Inline tape width control for thermoplastic automated tape layup

Yadav

Schledjewski²

2022

Composites Part A: Applied Science and Manufacturing

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Fatigue behavior of composite laminates with automated fiber placement induced defects- a review

Cited by 18 publications

References 66 publications

Very high cycle fatigue of fiber‐reinforced polymer composites: Uniaxial ultrasonic fatigue

Very high cycle fatigue of fiber‐reinforced polymer composites: Uniaxial ultrasonic fatigue

Failure behaviors of 3D braided composites with defects in different locations under low-velocity impact compression

Inline tape width control for thermoplastic automated tape layup

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