Effect of fiber orientation on dynamic mechanical properties of PALF hybridized with basalt reinforced epoxy composites

Doddi, Parameswara Rao Venkata; Chanamala, Ratnam; Dora, Siva Prasad

doi:10.1088/2053-1591/ab6771

Cited by 34 publications

(22 citation statements)

References 29 publications

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“…This increase in tan d peak has been reported to be due to the formation of microscopic cracks and voids at higher frequencies. 45 Similar trends to the storage moduli were found for the loss moduli of all the specimens. The highest values of the loss modulus were found for CFRP and the lowest values among all the composite specimens were exhibited by the GFRP composites.…”

Section: Dynamic Mechanical Analysissupporting

confidence: 70%

“…It can also be noticed that the storage modulus decreased with an increase in temperature for all the specimens at all the applied frequencies, as the components in the glassy states were strongly packed, had a very low mobility compared to the rubbery region, and experienced strong intermolecular forces contributing the high storage moduli. 45 It is also worth mentioning that the storage modulus increased at higher frequencies for all the specimens. This increase is mainly due to the low arrangement of molecules as the availability of time is less at higher frequencies compared to lower frequencies.…”

Section: Dynamic Mechanical Analysismentioning

confidence: 85%

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The effect of hybridization on microstructure and thermo-mechanical properties of composites reinforced with different weaves of glass and carbon fabrics

Khan

Fikri

Irfan

et al. 2020

Journal of Composite Materials

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In this research, an experimental investigation of the microstructural, viscoelastic, and flexural properties of glass/carbon hybrid Fiber Reinforced Polymer (FRP) composites consisting of two different types of weaves (plain and twill) was carried out. The hybrid composites were manufactured by using the VARTM technique. The scanning electron micrographs showed that the hybridization resulted in a significant improvement in fiber-matrix adhesion of the hybrid composites compared to the pure glass fiber reinforced polymer (GFRP) composites based on plain weave glass fabrics, whereas the best fiber-matrix adhesion was observed in carbon fiber reinforced polymer (CFRP) composites. The synergistic effect due to hybridization lead to substantial improvements in the dynamic mechanical and flexural response of the manufactured composites. The hybrid composites exhibited a 149% increase in flexural strength, and a 144% increase in the flexural modulus compared to the GFRP composites, and an increase of 109% in the average value of the storage modulus at three different frequencies (1 Hz, 5 Hz and 10 Hz) compared to the GFRP composites. Whereas, the highest values were observed for pure CFRP composites for both flexural strength and modulus. A positive hybridization effect was also confirmed by the higher experimental values compared to the estimated results calculated by using the Rule of hybrid mixtures (RoHM). Due to higher fiber volume content, the GFRP exhibited the highest thermal stability compared to other specimens.

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Section: Dynamic Mechanical Analysissupporting

confidence: 70%

Section: Dynamic Mechanical Analysismentioning

confidence: 85%

The effect of hybridization on microstructure and thermo-mechanical properties of composites reinforced with different weaves of glass and carbon fabrics

Khan

Fikri

Irfan

et al. 2020

Journal of Composite Materials

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“…Epoxies, due to a wide range of hardeners, can cure at room or elevated temperature, achieving favorable mechanical and thermal properties. However, they are reinforced with synthetic and natural fibers, such as glass, carbon [9], basalt [10], aramid [11], jute [12], or flax [13,14], due to their low impact strength and brittleness. Hybrid epoxy composites may contain several types of powder or liquid modifiers, several types of fibrous modifiers, or both powder and fibrous modifiers [15,16].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Epoxy Composites with Both Powder and Fiber Filler: A Review of Mechanical and Thermomechanical Properties

Matykiewicz

2020

Materials

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Fiber-reinforced epoxy composites are used in various branches of industry because of their favorable strength and thermal properties, resistance to chemical and atmospheric conditions, as well as low specific gravity. This review discusses the mechanical and thermomechanical properties of hybrid epoxy composites that were reinforced with glass, carbon, and basalt fabric modified with powder filler. The modification of the epoxy matrix mainly leads to an improvement in its adhesion to the layers of reinforcing fibers in the form of laminate fabrics. Some commonly used epoxy matrix modifiers in powder form include carbon nanotubes, graphene, nanoclay, silica, and natural fillers. Fiber fabric reinforcement can be unidirectional, multidirectional, biaxial, or have plain, twill, and satin weave, etc. Commonly used methods of laminating epoxy composites are hand lay-up process, resin transfer molding, vacuum-assisted resin transfer molding, and hot or cold pressing. The following review is a valuable source of information on multiscale epoxy composites due to the multitude of technological and material solutions.

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“…[14] Guth [15] Cohan [16], Mooney [17]. Doddi et al [18] studied that dynamic mechanical properties of hybrid pineapple leaf (PALF) and basalt fibre reinforced epoxy composite at variable vibration frequencies and reported that fibre orientation played a major role in dynamical properties. Senthilkumar et al [19] reported that polyester composites with treated pineapple leaf fibre showed good improvement in dynamics properties.…”

Section: Introductionmentioning

confidence: 99%

Dynamic-mechanical properties as a function of luffa fibre content and adhesion in a polyester composite

Kalusuraman

Irulappasamy

Munde³

et al. 2020

Polymer Testing

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In this work, the characteristics of a vegetable fibre (luffa cylindrica) polyester composite are studied as a function of fibre surface treatment (with NaOH, Ca(OH) 2 and silane) and fibre content (30%, 40% and 50%). Composites were prepared through compression moulding and characterized with thermogravimetric and dynamic-mechanical analyses. Higher storage modulus was obtained with Ca(OH) 2 treated composites, reaching nearly 70% increase. Higher loss modulus (E") was noted in for silane treated fibre (at 50%) and a high peak in damping factor was noted for Ca(OH) 2 treated fibre (at 50%). Cole-cole plot showed highest homogeneity for the Ca(OH) 2 treated composites. Electron microscopy revealed the fracture modes in static tested composites. The general properties obtained indicate that the composites can only be used for low loading applications.

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Effect of fiber orientation on dynamic mechanical properties of PALF hybridized with basalt reinforced epoxy composites

Cited by 34 publications

References 29 publications

The effect of hybridization on microstructure and thermo-mechanical properties of composites reinforced with different weaves of glass and carbon fabrics

The effect of hybridization on microstructure and thermo-mechanical properties of composites reinforced with different weaves of glass and carbon fabrics

Hybrid Epoxy Composites with Both Powder and Fiber Filler: A Review of Mechanical and Thermomechanical Properties

Dynamic-mechanical properties as a function of luffa fibre content and adhesion in a polyester composite

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