Influence of Carbon Nanotubes on the Interlaminar Properties of Carbon Fiber Aluminum Metal Laminates

Shifa, Madni; Tariq, Fatima; Baloch, Rasheed Ahmed

doi:10.4028/www.scientific.net/kem.778.100

Cited by 18 publications

(11 citation statements)

References 19 publications

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“…Alternatively, interlaminar shear strength can also be enhanced by the addition of nanofillers at metal/composite interface or in polymer matrix. [ 9 ]…”

Section: Introductionmentioning

confidence: 99%

“…Similar trend was noticed for the impact resistance. Later on, the effect of MWCNTs on the interlaminar shear properties of CARALL was discussed by Shifa et al [ 9 ] Results demonstrated that the addition of MWCNTs deteriorates the interlaminar shear properties by weakening the interface between treated Al‐surface and carbon reinforced composite. Khoramishad et al [ 26 ] studied the effect of adding MWCNTs at 0.25, 0.5, and 1 wt% on high‐velocity impact behavior of GLARE (Al/[glass fiber reinforced epoxy] 6 /Al).…”

Section: Introductionmentioning

confidence: 99%

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Experimental study on the improvement of mechanical properties of GLARE using nanofillers

El‐baky

Attia

2020

Polymer Composites

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The present study investigates the effect of halloysite clay nanotubes (HCNT S) on the mechanical properties of glass reinforced aluminum laminate (GLARE) as a very popular fiber metal laminate (FML). GLARE (3/2) with quasi-isotropic lay-up, [Al/[(0 /90)/(45 /−45)]s/Al/[(0 /90)/(45 /−45)]s/Al], filled with different wt% ofHCNTs (0, 0.25, 0.5, 1, 2, and 3 wt%) were fabricated using hand lay-up followed by compression molding. Tensile, flexural, and impact properties of the fabricated GLAREs were evaluated. The failure of the specimens was examined using field emissionscanning electron microscope (FE-SEM), energy-dispersive X-ray spectroscopy (EDX) and visual inspection. Test results demonstrated that the incorporation of HCNTs improves the mechanical properties of GLARE. Among the studied wt%, the inclusion of 1 wt% of HCNTs to GLARE leads to maximum improvements of 35.67%, 8.50%, 28.85%, 50.47%, 50.27%, 30.43%, and 51.52% in tensile strength, tensile strain, Young's modulus, modulus of toughness, flexural strength, flexural strain, and impact strength, respectively, was attained by adding 1 wt% of HCNTs to GLARE compared to pristine GLARE. Meanwhile, increasing HCNT S content to 3 wt% reverse the trend. FESEM showed that, HCNT S are well dispersed in epoxy. However, a higher weight fraction of HCNT S in epoxy, that is, 3 wt% leads little agglomerations.

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“…Alternatively, interlaminar shear strength can also be enhanced by the addition of nanofillers at metal/composite interface or in polymer matrix. [ 9 ]…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental study on the improvement of mechanical properties of GLARE using nanofillers

El‐baky

Attia

2020

Polymer Composites

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“…The interfacial strength of FMLs is a matter of concern [8]. It is very crucial and dictates the overall performance of FMLs [9]. Ning et al [10] employed carbon nanofibers at the interfacial region of FMLs in an attempt to strengthen their interfaces.…”

Section: Introductionmentioning

confidence: 99%

“…Similar trend was noticed for the impact resistance. Shifa et al [9] proved that the addition of MWCNTs to CARALL decreases the interlaminar shear properties by weakening the interface between treated Al-sheets and carbon reinforced composite. Khoramishad et al [33] discussed the effect of 0.25, 0.5 and 1 wt.…”

Section: Introductionmentioning

confidence: 99%

The mechanical performance of the laminated aluminum-epoxy/glass fiber composites containing halloysite nanotubes: An experimental investigation

El‐baky

Attia

2020

Journal of Industrial Textiles

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In this study, the effect of different weight percentages (wt. %) of halloysite nanotubes (HNTs) on the mechanical performance of glass laminate aluminum (Al) reinforced epoxy (GLARE) was investigated. GLARE (3/2) laminates with quasi-isotropic lay-up, [Al/[(0°/90°)/(45°/−45°)]s/Al/[(0°/90°)/(45°/−45°)]s/Al] filled with 0, 0.25, 0.5, 1, 2 and 3 wt. % of HNTs were fabricated using hand lay-up followed by compression molding. To explore the effect of HNTs on the mechanical properties, tensile, flexural, in-plane shear, interlaminar shear, bearing and impact tests were conducted. Results demonstrated that the inclusion of 1 wt. % of HNTs into GLARE leads to maximum improvements of 35.67, 8.50, 28.85, 50.47, 50.27, 30.43, 23.73, 72.08, 30.74, and 51.52% in tensile strength, tensile strain, Young's modulus, modulus of toughness, flexural strength, flexural strain, in-plane shear strength, interlaminar shear strength, bearing strength, and impact strength, respectively, compared to pristine GLARE. An enhancement of 38.89% in the flexural modulus was attained by adding 0.5 wt. % of HNTs to GLARE compared to pristine GLARE. The tensile strength, tensile strain, modulus of toughness, flexural strength, flexural modulus, flexural strain, in-plane shear strength, and interlaminar shear strength of GLARE filled with 3 wt. % of HNTs are 0.91, 0.88, 0.91, 0.91, 0.71, 0.83, 0.85, and 0.91 times those of the original GLARE. But Young’s modulus, bearing strength, and impact strength are 1.10, 1.15 and 1.20 times those of the original GLARE. To investigate the fracture mechanism, field emission scanning electron microscope (FE-SEM) and energy-dispersive X-ray spectroscopy (EDX) were used. The microscopic images revealed that adding HNTs lead to the improvement in the interaction between the epoxy matrix and glass fiber, thereby improving the mechanical properties.

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“…[2][3][4][5] The performance of FMLs along with other parameters is critically dependent upon the strength of composite-metal interface and the interlaminar fracture strength of the composite sheets. [6][7][8][9] In spite of a strong cohesion between metal and polymer composite, a poor interlaminar strength of the FRP can lead to complete failure of the structure. [10] In recent past nanoparticles especially carbon allotropes, for example, carbon nanotubes, carbon nanofibers, carbon nanodiamond particles, and graphene nanosheets have been proved to be catalyst for the enhancement of the strength of FRPs.…”

Section: Introductionmentioning

confidence: 99%

Nanoparticles enhanced interfaces of Glass fiber laminate aluminum reinforced epoxy (GLARE) fiber metal laminates

Rauf

Khurram²,

Hussain³

et al. 2021

Polymer Composites

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Fiber metal laminates (FMLs) based on unidirectional glass fabric and aluminum alloy 7075-T6 sheet bonded with 5052 epoxy, were prepared by vacuum molding followed by hand layup method. Interface of metal-adhesive was improved by a series of surface treatments of aluminum sheets, which increased the surface roughness (Ra) of aluminum from 227 to 1067 nm.Matrix was modified by incorporation of graphene nanosheets (GNs) and nanodiamonds (NDs). In-order to optimize the quantity of nanoreinforcements three different proportions were used, that is, 0.5, 1, and 1.5 wt %, inclusive of equal proportions of GNs and NDs. For comparison, pristine epoxy based FMLs were also fabricated. Synergetic effect of GNs and NDs improved the tensile strength by 25%, inter laminar shear strength (ILSS) 46%, and fracture toughness 70%, by combination of GNs and NDs up to 0.5 wt%.Surface roughness test and water drop contact angle test were performed to evaluate the surface roughness of aluminum, while the microscopic analysis was conducted to observe the fracture behavior of FMLs. Finite element method (FEM) for numerical validation of experimental results was also performed. From the results, it was concluded that combination of aluminum surface treatment and matrix modification improved the overall performance of FMLs.

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Influence of Carbon Nanotubes on the Interlaminar Properties of Carbon Fiber Aluminum Metal Laminates

Cited by 18 publications

References 19 publications

Experimental study on the improvement of mechanical properties of GLARE using nanofillers

Experimental study on the improvement of mechanical properties of GLARE using nanofillers

The mechanical performance of the laminated aluminum-epoxy/glass fiber composites containing halloysite nanotubes: An experimental investigation

Nanoparticles enhanced interfaces of Glass fiber laminate aluminum reinforced epoxy (GLARE) fiber metal laminates

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