Characterization of carbon nanotube enhanced interlaminar fracture toughness of woven carbon fiber reinforced polymer composites

Chaudhry, Muhammad Salman; Czekanski, Aleksander; Zhu, Zheng H.

doi:10.1016/j.ijmecsci.2017.06.016

Cited by 87 publications

(38 citation statements)

References 34 publications

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“…There are also some studies examining the mode I and mode II interlaminar fracture toughness. [20][21][22][23] According to these references, adding CNTs to FRPs improved the fracture resistance remarkably due to the reinforced fiber/matrix interface. It has to be said that the mentioned enhancement of fracture toughness strongly depends on the characteristics of raw materials, their quality and the manufacturing procedure.…”

Section: Introductionmentioning

confidence: 98%

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Experimental fracture investigation of CNT/epoxy nanocomposite under mixed mode II/III loading conditions

Karami

Ayatollahi

Saboori

2020

Fatigue Fract Eng Mat Struct

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For the first time, the brittle fracture of epoxy‐based nanocomposite reinforced with MWCNTs (multi‐walled carbon nanotubes) and subjected to mixed mode II/III loading conditions is investigated. This experimental investigation is carried out using a newly developed test configuration. Araldite LY 5052 epoxy, which is a resin frequently used in aerospace industry, is utilized to fabricate pure epoxy and nanocomposite test specimens with two different MWCNTs contents of 0.1 and 0.5 wt%. The obtained experimental results reveal that adding MWCNTs to epoxy resin up to 0.5 wt% improves the fracture toughness under pure mode II and pure mode III loading with an increasing trend. This is while the improvement under mixed mode II/III loading is reduced by adding nanotubes more than 0.1 wt%. To justify the variations of fracture toughness in terms of nanoparticles content, SEM (scanning electron microscopy) photographs of the fracture surfaces of the specimens in the vicinity of the initial crack front are prepared. Additional fracture mechanisms caused by adding carbon nanotubes are discussed in detail based on the provided SEM images.

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Section: Introductionmentioning

confidence: 98%

“…). There are also some studies examining the mode I and mode II interlaminar fracture toughness . According to these references, adding CNTs to FRPs improved the fracture resistance remarkably due to the reinforced fiber/matrix interface.…”

Section: Introductionmentioning

confidence: 99%

Experimental fracture investigation of CNT/epoxy nanocomposite under mixed mode II/III loading conditions

Karami

Ayatollahi

Saboori

2020

Fatigue Fract Eng Mat Struct

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“…Chaudhry et al 9 presented an easy and inexpensive method to fabricate carbon fiber polymer composites. According to this procedure, nano‐particles were distributed homogenously in an epoxy matrix.…”

Section: Introductionmentioning

confidence: 99%

Analytical approach to study the vibration of delaminated multi‐scale composite cylindrical shells

Baharali

Yazdi

2020

Polymer Composites

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In this study, the effect of carbon nano‐tubes (CNTs) and fiber carbons on vibration frequency of delaminated anti‐symmetric cross‐ply cylindrical shells is investigated. In this case, (CNTs) are added into polymer matrix of industrial composite. The mixture of rule and Halpin‐Tsai relation are used to obtain the effective materials of reinforced delaminated multi‐scale composite cylindrical shell. Based on Galerkine's method an approximate‐analytical solution is presented to predict the frequency vibration of delaminated multi‐scale composite shells. The results are used to assess the effect of various parameters including CNTs weight percentage, geometric parameters, delamination length and position across circumferential and thickness direction on frequency ratio for CNTs reinforced anti‐symmetric cross‐ply delaminated composite cylindrical shells.

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“…Previous studies have shown that the deposition of CNTs and graphene-based materials on carbon fiber/epoxy prepregs by spray coating technique enhances the interlaminar fracture properties of carbon FRP laminates. [5][6][7][8][9][10][11][12][13][14] Moreover, recent publications have reported excellent electrical self-sensing capabilities [15][16][17] and impact-resistance properties 18 in glass fiber/epoxy laminates modified with the incorporation of CNTs onto the fibers by spray coating method. Thus, from an industrial perspective, spray coating technique seems to be the most promising method for the fabrication of composite structures modified with CNTs or other types of nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Seawater effects on interlaminar fracture toughness of glass fiber/epoxy laminates modified with multiwall carbon nanotubes

Rodríguez‐González

Rubio-González

2020

Journal of Composite Materials

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In this work, the effect of seawater ageing on mode I and mode II interlaminar fracture toughness ([Formula: see text] and [Formula: see text]) of prepreg-based woven glass fiber/epoxy laminates with and without multiwall carbon nanotubes (MWCNTs) has been investigated. The first part of the investigation reports the moisture absorption behavior of multiscale composite laminates exposed to seawater ageing for ∼3912 h at 70 °C. Then, the results of mode I and mode II fracture tests are presented and a comparison of [Formula: see text] and [Formula: see text] for each type of material group and condition is made. Experimental results showed the significant effect of seawater ageing on [Formula: see text] of multiscale composite laminates due to matrix plasticization and fiber bridging. The improvement in [Formula: see text] of the wet glass fiber/epoxy laminate was about 50% higher than that of the neat laminate (without MWCNTs) under dry condition. It was also found that the presence of MWCNTs into composite laminates promotes a moderate increase (8%) in their [Formula: see text] as a result of the additional toughening mechanisms induced by CNTs during the delamination process. Scanning electron microscopy analysis conducted on fracture surface of specimens reveals the transition from brittle (smooth surface) to ductile (rough surface) in the morphology of composite laminates due to the influence of seawater ageing on the polymeric matrix and fiber/matrix interface.

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Characterization of carbon nanotube enhanced interlaminar fracture toughness of woven carbon fiber reinforced polymer composites

Cited by 87 publications

References 34 publications

Experimental fracture investigation of CNT/epoxy nanocomposite under mixed mode II/III loading conditions

Experimental fracture investigation of CNT/epoxy nanocomposite under mixed mode II/III loading conditions

Analytical approach to study the vibration of delaminated multi‐scale composite cylindrical shells

Seawater effects on interlaminar fracture toughness of glass fiber/epoxy laminates modified with multiwall carbon nanotubes

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