Effect of high graphite filler contents on the mechanical and tribological failure behavior of epoxy matrix composites

Baptista, R.; Mendão, Ana; Rodrigues, Flávia S. C.; Figueiredo-Pina, C.G.; Guedes, M.; Marat-Mendes, Rosa

doi:10.1016/j.tafmec.2016.08.013

Cited by 64 publications

(42 citation statements)

References 18 publications

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“…The amounts of debris on the worn surface of composites without GNPs clearly prove that fatigue‐delamination occurred with repeated loading during sliding [Figures (a) and (a)]. However, this mechanism is negligible for the 0.3 wt % GNPs nanocomposite, resulting in higher wear resistance [Figures (b) and (b)], In other words, the wear mechanism changed from fatigue (no GNPs) to abrasive (0.3 wt % GNPs), thus decreased the mass reduction …”

Section: Resultsmentioning

confidence: 92%

The effects of surface‐modified graphene nanoplatelets on the sliding wear properties of basalt fibers‐reinforced epoxy composites

Kazemi-Khasragh

Bahari-Sambran

Siadati

et al. 2019

J of Applied Polymer Sci

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Possessing unique designs and properties absent in conventional materials, nanocomposites have made a remarkable imprint in science and technology. This is particularly true regarding the polymer matrix composites when they are further reinforced with nanoparticles. In this study, the effects of different weight percentages (0, 0.1, 0.2, 0.3, 0.4, and 0.5) of surface‐modified graphene nanoplatelets (GNPs) on the microhardness and wear properties of basalt fibers/epoxy composites were investigated. The GNPs were surface modified by silane, and the composites were made by the hand lay‐up method. The wear tests were conducted under two different loads of 20 and 40 N. The best wear properties were achieved at 0.3 wt % GNPs as a result of the GNPs' self‐lubrication property and the formation of a stable transfer/lubricating film at the pin and disk interface. Moreover, the friction coefficient was lower at the higher normal load of 40 N. The microscopic studies by FESEM and SEM showed that the presence of GNPs up to 0.3 wt % led to the stability of the transfer/lubricating film by enhancing the adhesion of the basalt fibers to the epoxy resin. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47986.

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Section: Resultsmentioning

confidence: 92%

The effects of surface‐modified graphene nanoplatelets on the sliding wear properties of basalt fibers‐reinforced epoxy composites

Kazemi-Khasragh

Bahari-Sambran

Siadati

et al. 2019

J of Applied Polymer Sci

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“…They found that the composites containing smaller graphite particles achieved better results than those with larger particles. Baptista et al [10] investigated the effect of high content graphite on the tribological and mechanical behavior of epoxy-based composites, suggesting that an increase in graphite filler could reduce the fatigue-related wear experienced by epoxy resin. Other types of graphite have also been studied, but are not the focus of this particular paper [11].…”

Section: Introductionmentioning

confidence: 99%

Comparative tribological behavior of friction composites containing natural graphite and expanded graphite

Jin

Zhou

et al. 2019

Friction

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In this study, expanded graphite and natural graphite were introduced into resin-based friction materials, and the tribological behavior of the composites was investigated. The tribo-performance of the two friction composites was evaluated using a constant speed friction tester. The results showed that the expanded graphite composite (EGC) displayed better lubricity in both the fading and the recovery processes. The wear rate of the EGC decreased by 22.43% more than that of the natural graphite composite (NGC). In the fading process, and the EGC enhanced the stability of the coefficient of friction. The recovery maintenance rate of the NGC was 4.66% higher than that of the EGC. It can be concluded that expanded graphite plays an important role in the formation of a stable contact plateau and can effectively reduce the wear.

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“…Fiber reinforced epoxy matrix has outstanding specific strength characteristics. Therefore, it had become one of the most multiphase material used in many applications [1]. The addition of the reinforcement provides stiffness to the epoxy matrix.…”

Section: Introductionmentioning

confidence: 99%

“…The addition of the reinforcement provides stiffness to the epoxy matrix. Baptista [1] has investigated the effect of graphite filler on the mechanical properties the epoxy matrix. The presence of graphite has significantly improved the stiffness of the epoxy matrix.…”

Section: Introductionmentioning

confidence: 99%

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Failure Analysis of Graphite Epoxy Composite Plate Under Transverse Sinusoidal Load

Manan

Jam

Sahu

et al. 2018

IJET

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Composite material become interest on various applications in wide industry globally. The selection of composite material due to its versatile properties for instance high specific strength. Besides, the properties of composite material also tailorable for various application including automotive, aerospace and marine industry. The objective of this study is to perform the failure analysis of composite material under transverse sinusoidal load. Both failure criteria, Maximum Stress and Tsai-Wu Failure Criteria that provided in ANSYS used to carry out the analysis. Various aspect ratios will be used which are 5, 10, 20, 50 and 100 to perform the analysis with different thickness of laminate. Next, the boundary condition of the plate was set to simply and clamp supported. The finite element analysis of graphite/epoxy laminate with layup of (0/90/90/0) performed to determine the failure loads (First Ply Failure, FPF and Last Ply Failure, LPF loads). The un-normalized load obtained from the analysis is converted to normalized load using equation given. Finally, normalized load is plotted against aspect ratio for both failure criteria and boundary conditions.

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Effect of high graphite filler contents on the mechanical and tribological failure behavior of epoxy matrix composites

Cited by 64 publications

References 18 publications

The effects of surface‐modified graphene nanoplatelets on the sliding wear properties of basalt fibers‐reinforced epoxy composites

The effects of surface‐modified graphene nanoplatelets on the sliding wear properties of basalt fibers‐reinforced epoxy composites

Comparative tribological behavior of friction composites containing natural graphite and expanded graphite

Failure Analysis of Graphite Epoxy Composite Plate Under Transverse Sinusoidal Load

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