Mechanical characterization of intralaminar natural fibre-reinforced hybrid composites

Cavalcanti, Daniel Kioshi; Banea, M. D.; Neto, Jorge S. S.; Lima, R.A.A.; Silva, Lucas F. M. da; Carbas, R.J.C.

doi:10.1016/j.compositesb.2019.107149

Cited by 160 publications

(97 citation statements)

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“…Table 1 presents the chemical composition and mechanical properties of the natural fibers used in this work [19,21,23,31]. The properties of the glass fiber used were as follow: density (2.55 g/cm 3 ), tensile strength (2000-3500 MPa), Young's modulus (70-76 GPa) and elongation at break (1.8%-4.8%) [17,21].…”

Section: Methodsmentioning

confidence: 99%

“…Several researchers investigated the effects of hybridization on the mechanical and thermal properties of hybrid composites reinforced with different vegetable fibers (i.e., jute, curauá, sisal, ramie, coconut, sugar palm, etc.) or natural fibers combined with glass fibers [14][15][16][17][18][19][20][21][22][23][24][25]. For example, Almeida et al [14] showed that hybrid composites in which 30 vol.% of glass fiber was replaced by curauá fiber was able to achieve similar results in terms of hardness, impact strength and dynamic mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…The incorporation of silica (5%) improves the mechanical performance of composites containing a larger volume of sisal fibers. Cavalcanti et al [17] investigated the effect of hybridization on the mechanical properties of intralaminar hybrid epoxy composites based on jute. It was found that the tensile strength of jute+curauá and jute+sisal composites increased by approximately 77% and 68%, respectively, compared to non-hybrid jute composites.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical and Thermal Characterization of Natural Intralaminar Hybrid Composites Based on Sisal

et al. 2020

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The main objective of this work was to investigate the effect of hybridization on the mechanical and thermal properties of intralaminar natural fiber-reinforced hybrid composites based on sisal. Ramie, sisal and curauá fibers were selected as natural fiber reinforcements for the epoxy matrix based composites, which were produced by the hand lay-up technique. Tensile, flexural and impact tests were carried out according to American society for testing and materials (ASTM) standards to characterize the hybrid composites, while differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were used to evaluate the thermal properties. It was found that the mechanical properties are improved by hybridization of sisal based composites. The thermal analysis showed that the hybridization did not significantly affect the thermal stability of the composites. A scanning electron microscopy (SEM) was used to examine the fracture surface of the tested specimens. The SEM images showed a brittle fracture of the matrix and fiber breakage near the matrix.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mechanical and Thermal Characterization of Natural Intralaminar Hybrid Composites Based on Sisal

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“…1 Federal Center of Technological Education in Rio de Janeiro, CEFET/RJ, Rio de Janeiro, Brazil. 2 Mechanical Engineering Department, Priyadarshini Bhagwati College of Engineering (PBCE), Nagpur, India. 3 Université de Nantes, Institut de Recherche en Génie Civil et Mécanique, Saint-Nazaire, France.…”

Section: Fundingmentioning

confidence: 99%

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Effects of heat treatment on the behavior of teak wood adherends bonded joints

Budhe

Ghugal²,

Barros

2020

Appl Adhes Sci

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IntroductionNowadays, scientific communities and industries are looking for alternative materials to the synthetic composites and metals, as these materials are non-degradable, limited in quantity, hazardous to nature and costly [1,2]. Hence many researchers are attracted towards natural materials (e.g. wood) for various applications, such as construction, furniture, decorative products, sports items and many others. Wood is one of the most important materials and widely used since the old era, as it is easily available, ecofriendly, light weight and low cost among many more benefits compared to others [3,4]. However, the hygroscopicity of wood is the major disadvantage which limits the usage of wood for many applications. There are different processes by which the hygroscopicity of wood can be reduced and many studies have been carried out in the literature on different processes [5,6].Heat treatment is the oldest and simplest method by which wood hygroscopicity can be effectively decreased. In addition, the dimensional stability, biological resistance and durability of the wood can also be improved [7][8][9]. It was showed that the heat treatment of wood not only reduced the hygroscopicity but also caused physical changes in the wood such as surface modification, which can significantly affect the adhesive bond AbstractThe main aim of this work is to investigate the effect of heat treatment on the teak wood adherend bonded joints. Indian teak wood samples were kept in an oven at 150 °C for 2 h for the heat treatment process. The surface roughness values of the wood adherend before and after the heat treatment process were measured using a surface profilometer. Wettability of un-treated and heat-treated teak wood samples was determined with the contact angle measurements by using the sessile drop method. Single strap joints with un-treated and heat treated wood specimens were tested at ambient temperature. The results show that, there is a clear dependency observed in between the heat treatment and the surface roughness of the wood adherends. Wettability of teak wood adherend surface is degraded after the heat treatment process. An adverse effect of heat treatment of wood adherend on the bonding strength was observed, but the surface roughness was improved.

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The effect of multiscale hybridization on the mechanical properties of natural fiber‐reinforced composites

Queiroz

Cavalcanti

Neto

2021

J of Applied Polymer Sci

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The main objective of this work was to investigate the effect of reinforcements at different scales on the mechanical properties of natural fiber-reinforced composites. Pure jute and interlaminar hybrid jute/glass fiber-reinforced polymer composites were fabricated. Different types of fillers in two weight fractions (1 and 3 wt. %) were used as second reinforcements in the hybrid jute/ glass composites. Tensile, flexural, and impact tests were performed. It was found that the macroscale inter-play hybridization significantly improved the mechanical properties of the pure jute fiber based composites. When the fillers are used as second hybridization, the modified composites presented higher mechanical properties when compared to pure jute composites. However, the effect of fillers on the mechanical properties of the hybrid composites presented various trends due to the interaction between several factors (i.e., particle scale, content, and nature), which cannot always be separated. Increasing the synthetic filler content improved the tensile properties of the filled hybrid composites, while increasing the natural filler content worsen the tensile properties. The flexural strength of the multiscale hybrid composites was improved, while the impact properties were negatively affected.

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Mechanical characterization of intralaminar natural fibre-reinforced hybrid composites

Cited by 160 publications

References 34 publications

Mechanical and Thermal Characterization of Natural Intralaminar Hybrid Composites Based on Sisal

Mechanical and Thermal Characterization of Natural Intralaminar Hybrid Composites Based on Sisal

Effects of heat treatment on the behavior of teak wood adherends bonded joints

The effect of multiscale hybridization on the mechanical properties of natural fiber‐reinforced composites

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