Enhancement of Mechanical Properties of Flax-Epoxy Composite with Carbon Fibre Hybridisation for Lightweight Applications

Dhakal, Hom Nath; Sain, Mohini

doi:10.3390/ma13010109

Cited by 38 publications

(25 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Dhakal and Sain [ 22 ] addressed the tensile characteristics of hybrid fibre (carbon and flax)-reinforced polymer laminated composites and also made a comparative study between the carbon/flax/epoxy, plain flax/epoxy and plain carbon/epoxy laminated composites. Megahed et al [ 23 ] explored the optimal design of hybrid carbon/flax/epoxy laminated beam by performing the modal analysis in order to minimize its weight and cost.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Characteristics of Woven Flax/Epoxy Laminated Composite Plate

et al. 2021

View full text Add to dashboard Cite

Due to the growing environmental awareness, the development of sustainable green composites is in high demand in composite industries, mainly in the automotive, aircraft, construction and marine applications. This work was an attempt to experimentally and numerically investigate the dynamic characteristics of Woven Flax/Bio epoxy laminated composite plates. In addition, the optimisation study on the dynamic behaviours of the Woven Flax/Bio epoxy composite plate is carried out using the response surface methodology (RSM) by consideration of the various parameters like ply orientation, boundary condition and aspect ratio. The elastic constants of the Woven Flax/Bio epoxy composite lamina needed for the numerical simulation are determined experimentally using two methods, i.e., the usual mechanical tests as well as through the impulse excitation of vibration-based approach and made a comparison between them. The numerical analysis on the free vibration characteristics of the composite was carried out using ANSYS, a finite element analysis (FEA) software. The confirmation of the FE model was accomplished by comparing the numerical results with its experimental counterpart. Finally, a comparison was made between the results obtained through the regression equation and finite element analysis.

show abstract

Section: Introductionmentioning

confidence: 99%

Dynamic Characteristics of Woven Flax/Epoxy Laminated Composite Plate

et al. 2021

View full text Add to dashboard Cite

show abstract

“…It can be observed that the wet samples do not have as clear holes as those of dry specimens (Figure 10), indicating the increased ductility of water-immersed samples. [25,26]. The SEM images further reveal that the extent of damage increased with the increase of the incident energy level.…”

Section: Influence Of Moisture Absorption On the Impact Resistance Bementioning

confidence: 83%

“…Different failure modes for flax/VE composites are further explained by the Micro-CT scan illustrated in Figure 15, which compliments the observation made via SEM images. From the annotation provided for the SEM images of flax/VE composites, as shown in Figure 13a [25,26]. The SEM images further reveal that the extent of damage increased with the increase of the incident energy level.…”

Section: Visual Observations Of Damage Behaviour In Wet Conditionsmentioning

confidence: 94%

“…(1) Fibre breakage; (2) [25,26]. The SEM images further reveal that the extent of damage increased with the increase of the incident energy level.…”

Section: Visual Observations Of Damage Behaviour In Wet Conditionsmentioning

confidence: 97%

“…[24] investigated the influence of basalt fibre hybridisation on the post-impact mechanical behaviour of hemp fibre-reinforced composites, and their report suggests that basalt fibre hybrid systems significantly improved the post-impact mechanical properties. Similarly, carbon fibre hybridised flax fibre composites were investigated and it was observed that the hybrid system offered excellent mechanical properties compared to flax fibre non-hybrid composites [25]. Paturel and Dhakal [26] investigated the water absorption and low velocity impact damage characteristics of flax/glass fibre hybrid vinyl ester composites.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Falling Weight Impact Damage Characterisation of Flax and Flax Basalt Vinyl Ester Hybrid Composites

et al. 2020

Self Cite

View full text Add to dashboard Cite

Understanding the damage mechanisms of composite materials requires detailed mapping of the failure behaviour using reliable techniques. This research focuses on an evaluation of the low-velocity falling weight impact damage behaviour of flax-basalt/vinyl ester (VE) hybrid composites. Incident impact energies under three different energy levels (50, 60, and 70 Joules) were employed to cause complete perforation in order to characterise different impact damage parameters, such as energy absorption characteristics, and damage modes and mechanisms. In addition, the water absorption behaviour of flax and flax basalt hybrid composites and its effects on the impact damage performance were also investigated. All the samples subjected to different incident energies were characterised using non-destructive techniques, such as scanning electron microscopy (SEM) and X-ray computed micro-tomography (πCT), to assess the damage mechanisms of studied flax/VE and flax/basalt/VE hybrid composites. The experimental results showed that the basalt hybrid system had a high impact energy and peak load compared to the flax/VE composite without hybridisation, indicating that a hybrid approach is a promising strategy for enhancing the toughness properties of natural fibre composites. The πCT and SEM images revealed that the failure modes observed for flax and flax basalt hybrid composites were a combination of matrix cracking, delamination, fibre breakage, and fibre pull out.Polymers 2020, 12, 806 2 of 18 Among the natural fibres used in polymeric composites, bast fibres (flax, hemp, jute, and kenaf) stand out as the most promising reinforcements [9,10]. Due to their unique hollow structure, these fibres provide a good damping property, which is very important when it comes to dealing with impact damage and vibration damping behaviours. The good damping properties of bast fibre-reinforced composites make them an attractive alternative to be used in automotive components where impact and damping properties are very important [11,12]. However, their high natural variability, strong affinity to water until saturation, limited processing temperature range, relatively low impact resistance, and low thermal stability negatively influence their long-term durability [13,14]. Moreover, their low impact resistance behaviour under different operation conditions is another concern when these materials are used in automotive and marine sectors.Mitrevski et al.[15] studied the influence of impactor shape on the impact damage of composite laminates. The results demonstrated that the impactor shape plays a large role in the damage response of composite materials. Composite laminates undergo various impact-induced damage modes under impact loadings. A review carried out by Cantwell and Morton [16] has reported the various impact-induced failure modes of composite laminates. Wisheart and Richardson [17] investigated the impact damage response of complex geometry pultruded glass/polyester composites.During the past two decades, there have been many reporte...

show abstract

A new study on flax‐basalt‐carbon fiber reinforced epoxy/bioepoxy hybrid composites

et al. 2021

View full text Add to dashboard Cite

The present research investigation focuses on the development of flax-basaltcarbon fiber reinforced epoxy/bioepoxy hybrid composites under different stacking sequence technique. The composites were fabricated using manual hand lay-up method and compression molding technique. The specimens were prepared using standard ASTM methods and subjected to various mechanical experimentations such as tensile, flexural, interlaminar shear strength, and impact tests. Water absorption study under distilled water condition, contact angle measurement, thermogravimetric analysis, and surface morphology study using scanning electron microscopy analysis was also performed. From the results obtained, the composites manufactured in the present work can be prospectively utilized in various engineering medium load structural applications.

show abstract

Enhancement of Mechanical Properties of Flax-Epoxy Composite with Carbon Fibre Hybridisation for Lightweight Applications

Cited by 38 publications

References 42 publications

Dynamic Characteristics of Woven Flax/Epoxy Laminated Composite Plate

Dynamic Characteristics of Woven Flax/Epoxy Laminated Composite Plate

Falling Weight Impact Damage Characterisation of Flax and Flax Basalt Vinyl Ester Hybrid Composites

A new study on flax‐basalt‐carbon fiber reinforced epoxy/bioepoxy hybrid composites

Contact Info

Product

Resources

About