Effects of mean stress and fibre volume content on the fatigue-induced damage mechanisms in CFRP

Brunbauer, Julia; Pinter, Gerald

doi:10.1016/j.ijfatigue.2015.01.014

Cited by 58 publications

(40 citation statements)

References 15 publications

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“…The fatigue performance of composites is influenced by the composite system itself. Particularly influential parameters include; fibre and matrix properties, lay-up sequence [18,19], residual stresses due to the manufacturing process or due to discontinuities [20,21] and the maximum to minimum ratio of stress endured by the material [22,23,24,4], ply orientation [4], the fibre/matrix fractions [25], and environmental conditions affecting the composite components [26,27,28]. Exemplary works on the fatigue of composites covered from both experimental [29,22] and theoretical [4,30,31,32] perspectives may assist in the development of improved methods by which means composite failure can be predicted.…”

Section: Mechanics Of Cyclically Loaded Compositesmentioning

confidence: 99%

“…They concluded that damage accumulation within the matrix of a composite, decreases as the fibre volume fraction increases. Brunbauer and Pinter [41] conducted an extensive experimental study to discern the effect of mean stress and FVF (30% and 55%) on damage mechanisms in epoxy matrix UD-CFRP. The materials were tested under both static and cyclic conditions in both T-T and T-C modes and oriented 6 at 0 • , 45 • and 90 • .…”

Section: Thermoset and Thermoplastic Matrix Cfrpmentioning

confidence: 99%

“…Schematic summary of investigated mechanical behaviour and damage mechanisms in epoxy based UD-CFRP depending of the FVF, the fibres orientation, the fatigue profile (T-T, R=0.1 and T-C, R=-1) and the applied mean stress. From[41], reproduced with the permission of Elsevier.…”

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confidence: 99%

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The fatigue of carbon fibre reinforced plastics - A review

Alam

Mamalis

Robert

et al. 2019

Composites Part B: Engineering

254

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Engineering structures are often subjected to the conditions of cyclic-loading, which onsets material fatigue, detrimentally affecting the service-life and damage tolerance of components and joints. Carbon fibre reinforced plastics (CFRP) are high-strength, lowweight composites that are gaining ubiquity in place of metals and glass fibre reinforced plastics (GFRP) not only due to their outstanding strength-to-weight properties, but also because carbon fibres are relatively inert to environmental degradation and as such, show potential as corrosion resistant materials. The effects of cyclic loading on the fatigue of CFRP are detailed in several papers. As such, collating research on CFRP fatigue into a single document is a worthwhile exercise, as it will benefit the engineering-readership interested in designing fatigue resistant structures and components using CFRP. This review article aims to provide the most relevant and up-to-date information on the fatigue of CFRP. The review focuses in particular on defining fatigue and the mechanics of cyclically-loaded composites, elucidating the fatigue response and fatigue properties of CFRP in different forms, discussing the importance of environmental factors on the fatigue performance and service-life, and summarising the different approaches taken to modelling fatigue in CFRP.

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Section: Mechanics Of Cyclically Loaded Compositesmentioning

confidence: 99%

Section: Thermoset and Thermoplastic Matrix Cfrpmentioning

confidence: 99%

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The fatigue of carbon fibre reinforced plastics - A review

Alam

Mamalis

Robert

et al. 2019

Composites Part B: Engineering

254

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“… Mechanical behavior and damage mechanism in carbon/epoxy laminate with different fiber direction, fiber volume fraction, test angle, applied load type, and fatigue mean stress . [Color figure can be viewed at http://wileyonlinelibrary.com]…”

Section: Fiber Volume Fractionmentioning

confidence: 99%

“…6. Comparison of fatigue life laminates with two different fiber volume fraction, that is, 30 and 55% [17]. strength of the specimen, respectively.…”

Section: Mean Stress and Stress Ratiomentioning

confidence: 99%

Fatigue behavior of FRP composites and CNT‐Embedded FRP composites: A review

Gaurav

Singh

2016

Polymer Composites

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Composite materials have emerged as an effective substitute for conventional materials in various fields of engineering and structural science. For replacement of regular metals, composites, especially fiber‐reinforced polymer composites, have proved to be a suitable alternative. One of the important tests that conventional and composite materials have to undergo is fatigue test. It refers to the testing of materials for their cyclic behavior. In fatigue testing, depending on the choice of the researchers, materials are loaded till reaching their failure or till reaching a fraction of the total stiffness loss. Composite materials are different from metals and they show a distinct behavior under fatigue loading. In metals, failure occurs from the commencement of a single crack and then its propagation. In composite materials, conversely, it is a complex process as these materials possess crack‐arresting properties. This review paper highlights various aspects of the cyclic or fatigue behavior in composite materials. Factors triggering such behavior in composite materials include reinforcing substance, matrix material, fiber orientation or stacking sequence, fiber content, testing environment and so on, together with the damage development process at the microscopic level. Loading condition parameters pertain to stress ratio, mean stress, loading condition, multiaxial stress, and testing frequency. This article also includes the effect of carbon nanotubes on the fatigue life of the polymer composites. POLYM. COMPOS., 39:1785–1808, 2018. © 2016 Society of Plastics Engineers

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Transverse fatigue behavior analysis of symmetric and asymmetric glass fiber‐reinforced laminates

Sharma

Singh

2023

Polymer Composites

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This study examined the effect of interchanging the position of (0°/90°) and (±45°) angle ply around the midplane of an eight‐layer symmetric [(0°/90°)/(±45°)2/(0°/90°)]s and asymmetric woven glass fiber reinforced composite laminate having [(0°/90°)/(±45°)2/(0°/90°)//(±45°)/(0°/90°)2/(±45°)] and (±45°)/(0°/90°)2/(±45°)//(0°/90°)/(±45°)2/(0°/90°) stacking sequence by means of flexure and fatigue test. The flexural and fatigue behavior of glass fiber–reinforced polymer (GFRP) laminates was analyzed as well. The GFRP laminates in varying stacking sequence having a volume fraction of 55 ± 0.9% were subjected to fatigue and damage analysis under stress levels ranging from 90% to 50% of their ultimate flexural strength at f = 1 Hz, R = 0.1. Flexure and fatigue testing was done in accordance with ASTM D790/D790‐17. The experiment results showed that the symmetric laminate with (0°/90°) ply at the compression and tension sides exhibited greater flexural strength (458.09 MPa) and fatigue lives as compared to the asymmetric A (352.70 MPa) and asymmetric B (272.89 MPa) laminates with (0°/90°) and (±45°) ply at the compression sides respectively. Microscopy and transmission light photography techniques were used to detect the damage behavior and capture the debond zone images. The correlation between the load‐deflection curve, Wohler‐curve, hysteresis loops, dynamic stiffness and debond zones was also examined with regard to different stacked laminates.

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Effects of mean stress and fibre volume content on the fatigue-induced damage mechanisms in CFRP

Cited by 58 publications

References 15 publications

The fatigue of carbon fibre reinforced plastics - A review

The fatigue of carbon fibre reinforced plastics - A review

Fatigue behavior of FRP composites and CNT‐Embedded FRP composites: A review

Transverse fatigue behavior analysis of symmetric and asymmetric glass fiber‐reinforced laminates

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