Evaluation of fiber volume fraction of kenaf-coir-epoxy based green composite by finite element analysis

Parashar, Shikha; Chawla, Vivek

doi:10.1016/j.matpr.2021.08.147

Cited by 19 publications

(10 citation statements)

References 30 publications

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“…Finite element analysis (FEA) is used to solve design challenges by dividing a three‐dimensional design into a small number of elements, sample surface construction determines mesh shape, and mesh nodes decide problem solutions 52,53 . FEA was close to the results of practical testing.…”

Section: Finite Element Analysismentioning

confidence: 98%

Development of green composites from bio‐benzoxazine and epoxy copolymer reinforced with alkali‐treated pine nut shell particles

Gorar,

Zhiyi,

Wang

et al. 2023

Polymers for Advanced Techs

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In the current study, an isothermal compression molding process was used to develop enhanced green composites made from alkali‐treated pine nut shell particles (TPS) reinforced in fully bio‐driven benzoxazine (VB) and epoxy (EP) copolymer. Reinforcement with varying weight percent (wt%) of bio‐filler enhanced the properties of composites. Composites showed a rise of 75.9 MPa, 5.8 GPa, and 5.1 kJ/m2 in flexural strength, modulus, and impact strength, respectively. Thermal stability shows that composites can endure higher temperatures and hence be classified as flame‐retardant materials. The dynamic mechanical analysis (DMA) confirms that composites exhibit higher storage modulus, which was elevated to 77.6% compared to the unfilled copolymer. FTIR spectroscopy analyzed the structure of copolymerized composites. Further, finite element analysis (FEA) was observed for the prepared composites. A transversely isotropic composite material model was created with the properties of composites, and stress analysis was observed. FEA outcomes are in good agreement with experimental findings.

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Section: Finite Element Analysismentioning

confidence: 98%

Development of green composites from bio‐benzoxazine and epoxy copolymer reinforced with alkali‐treated pine nut shell particles

Gorar,

Zhiyi,

Wang

et al. 2023

Polymers for Advanced Techs

View full text Add to dashboard Cite

show abstract

“…Finite element analysis (FEA) evaluates engineering and design problems by breaking a 3‐dimensional model into limited parts, sample surface construction produces mesh form, and mesh nodes determine exam solutions 48,49 . A specimen was developed, and the displacement and Von Mises analysis were observed for that specimen with the characteristics of composites.…”

Section: Stress Analysismentioning

confidence: 99%

Green composites from vanillin‐based benzoxazine: Modified almond shell particles, curing behavior, thermal stability, mechanical properties, and stress analysis

Gorar,

Zhiyi,

Zhicheng

et al. 2023

J of Applied Polymer Sci

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By adhering to green chemistry principles, unique and enhanced benzoxazine composite is made from renewable vanillin and furfuryl amine. The bio‐benzoxazine poly(V‐BZF) structure was confirmed by 1H NMR and Fourier‐transform infrared spectroscopy spectroscopy. Enhanced composites were developed successfully by blending different chemical‐treated almond shell particles with poly(V‐BZF). Differential scanning calorimetry results reveal that novel benzoxazine's curing temperature was low and slightly reduced by incorporating chemically treated fillers. The lowest polymerizing temperature was recorded as 215°C for the blend of alkali‐treated particles. Thermogravimetric analysis demonstrates that composites exhibited superior thermal characteristics, and chemical treatment positively impacts filler material. The limiting oxygen index value classifies poly(V‐BZF) composites as flame‐retardant and extinguishing. Approximately a 47.56% increase in tensile strength and a 28.9% increase in modulus were recorded with the incorporation of silane‐treated filler. Flexural tests demonstrated that composites with silane‐treated particles showed maximum flexural strength of 101.5 MPa and a modulus of 4112.6 MPa. The impact strength of composites increased to 73.3%, expanding benzoxazine's manufacturing applications. In addition, the specimen was designed to have composite properties and stress analysis was performed in two Multiphysics software packages. In all, this work confirms that adopting environmentally‐friendly methodologies and surface modification of filler can yield superior composites.

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“…Following the Taguchi Matrix, a study was carried out using the Finite Element Method (FEM) through Solidworks software code. The FEM has been used in different areas of Engineering, including the evaluation of composite materials with plant fibers [40][41][42]. The dimensions of the models for both the pure resin and the composite with fibers correspond with the dimensions of the standard for the tensile test D638-14 Type I, as can be seen in Figure 1 [43].…”

Section: Simulation Partmentioning

confidence: 99%

Numerical and Experimental Analyses of Hybrid Composites Made from Amazonian Natural Fibers

Pino

Bezazi

Boumediri

et al. 2023

J. Res. Updates Polym. Sci.

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The application of lignocellulosic fibers as reinforcements in composite materials has found increasing use in recent years, due to the attractive characteristics of natural fibers such as their low cost, high specific modulus, biodegradability, abundance and with many technical qualities. Natural fiber hybrid composites are very frequently used in automotive aerospace and other industries. In this work, numerical and experimental analysis is carried out to compare curauá, jute and sisal fibers in epoxy composites for use in industry. The most appropriate hybridization effect by establishing the amounts of each fiber on the mechanical properties was considered. Finite Element Models were designed and validated through mechanical tests. The number of Finite Element models and specimens performed was determined through the design of experiments using the Taguchi Method and then the results were statistically validated. Higher strength was obtained in composites made with curauá fiber, followed by jute and sisal fibers. Such behavior was achieved by FEM and experimental tests, revealing an increase in tensile strength by increasing the amount of fibers up to 35% in total. Higher strength was achieved when the composite was made with curauá (20 wt.%), jute (10 wt.%) and sisal (5 wt.%) fibers. The results show a good agreement between the FEM and the experimental tests. Furthermore, the results of the present study were compared with those obtained previously mentioned in the open literature.

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Evaluation of fiber volume fraction of kenaf-coir-epoxy based green composite by finite element analysis

Cited by 19 publications

References 30 publications

Development of green composites from bio‐benzoxazine and epoxy copolymer reinforced with alkali‐treated pine nut shell particles

Development of green composites from bio‐benzoxazine and epoxy copolymer reinforced with alkali‐treated pine nut shell particles

Green composites from vanillin‐based benzoxazine: Modified almond shell particles, curing behavior, thermal stability, mechanical properties, and stress analysis

Numerical and Experimental Analyses of Hybrid Composites Made from Amazonian Natural Fibers

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