Static and dynamic mechanical analysis of hybrid natural fibre composites for engineering applications

Kumar, Sudhir; Vignesh, V.; Prasad, V.V. Bhanu; Sunil, Bdy; Srinivas, Regonda; Sanjay, M. R.; Siengchin, Suchart

doi:10.1007/s13399-022-03689-2

Cited by 19 publications

(15 citation statements)

References 53 publications

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“…All property models have appropriate accuracy values greater than 4, indicating they can be used to explore the strategy. Low coefficients of difference suggest that the experiments were extremely reliable (Kumar et al, 2023a).…”

Section: Model Analysis and Evaluationsmentioning

confidence: 97%

Utilization of response surface methodology to optimize the mechanical behaviour of flax/nano TiO2/Epoxy based hybrid composites under liquid nitrogen environment

Mohammed Ajmal,

Natrayan,

Giri

et al. 2024

Front. Mater.

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Linum usitatissimum commonly known as flax fibers, emerges as a promising reinforcement phase for artificial polymer resins, boasting ecological benefits, low density, and easy accessibility. However, the mechanical behavior of such composites hinges crucially on factors such as fiber mat thickness, nanoTiO2 filler content, and the application of cryogenic treatment. Addressing this complex interplay, this study employs a hand lay-up technique for composite construction, subjecting nanocomposite plates to the challenging liquid nitrogen conditions at 77 K post-manufacture. Recognizing the need for an optimized approach, Response Surface Methodology (RSM) based on Box-Benhken designs is employed to enhance the mixing features of linum usitatissimum polymer composites. The study calculates anticipated mechanical strength values through rigorous ANOVA inferential analysis, uncovering the pivotal roles played by fiber mat thickness, nanofiller content, and cryogenic treatment in the two feature interactions (2FI) model components. The methodology proves robust with high R2 values (0.9670 for tensile, 0.9845 for flexural, and 0.9670 for interlaminar shear strength) consistently aligning with experimental findings. The study culminates in identifying optimized parameters for maximal mechanical properties—300 gsm flax fiber thickness, 5 wt.% nano TiO2 concentration, and a 15-min cryogenic treatment—a result that advances our understanding of fundamental factors influencing composite performance and provides practical guidelines for applications in fields requiring superior mechanical strength in challenging environments.

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Section: Model Analysis and Evaluationsmentioning

confidence: 97%

Utilization of response surface methodology to optimize the mechanical behaviour of flax/nano TiO2/Epoxy based hybrid composites under liquid nitrogen environment

Mohammed Ajmal,

Natrayan,

Giri

et al. 2024

Front. Mater.

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“…Hybrid design showed better storage modulus at Tg [42] Jute/sisal Polyester The viscoelastic properties majorly depend on the nature of the polymer matrix and other reinforcement materials(fiber& and fillers) [43] Oil palm/nano filler/kenaf/ Epoxy Nano filler addition enhanced the storage modulus, loss modulus, and Tg [44] Tan δ of composite higher and variation found due to fiber angle leads to a change in flexural stiffness. Jute/ sisal / banana/ palm Epoxy Banana and palm fiber showed high Tan δ peaks due to stress transfer between fibermatrix [22] Bamboo/kenaf Epoxy 1 wt.% nano clay addition lowers the tan δ shows better adhesion between fibers and the matrix [45] temperature affects the viscous behavior. Because of internal friction, the produced strain energy is stored in the composite material and released as heat.…”

Section: Biocompositesmentioning

confidence: 99%

Dynamic mechanical characteristics of natural fiber hybrid composites, bio composites and nano composites –a review

Krishnasamy,

Belaadi

et al. 2024

Eng. Res. Express

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Dynamic mechanical analysis (DMA) is a helpful technique in the evaluation of natural fiber composites (NFCs) for investigating the viscoelastic behavior with respect to time, temperature, and frequency and calculating the phase shift. The authors have previously studied the DMA behavior of reinforced composites made of single (mono) and synthetic fibers. In this work, the DMA responses of bio composites, nanocomposites, and hybrid natural fiber composites are compared, and the factors influencing the responses are evaluated. Fiber loading, filler addition, fiber treatment, fiber stacking, and matrix all affect how viscoelastic NFCs behave. Previous investigations have indicated that the ranges for the storage modulus are 2000 MPa to 5800 MPa, the loss modulus is 150 MPa to 450 MPa, and the tan δ is 0.2 to 0.6. The nanocomposite's mesh reinforcement improves the interaction between all of its constituent parts, which raises the storage modulus. More specifically, because of the better component-to-component contact in nano composite, the mesh size of the reinforcement improved the storage modulus. This review study has contributed to a broad understanding of the viscoelastic behavior of fiber composites utilized in automobile, aerospace, building science, housing, textile, and food packaging applications.

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“…The bre treatment with NaOH solution removes the wax layer from the bre, resulting in increased surface area and bond strength. Furthermore, it forms the covalent bonds between epoxy and bre, improving the interface adhesion [31][32] [33]. Additionally, the better adhesion of bre to the matrix can be noticed [22].…”

Section: Surface Morphologymentioning

confidence: 99%

“…This is due to reinforcing the matrix material and resisting cracking under stress. The bre distributes the load evenly along its length, reducing the stress concentration at a single point, which improves the material's exural strength [33]. The exural strength of composites can be affected by the amount of cellulose present in the reinforced bre.…”

Section: Effect Of Fibres On Flexural Strengthmentioning

confidence: 99%

“…For instance, more cellulose in natural bres might produce more robust exural strength [15]. Further, it was noted that bres play a signi cant role in enhancing the fracture toughness of the matrices through several energy-absorbing functions such as bre rupture, bre/matrix interface debonding, bre pull-out and bre bridging, which slow crack propagation and therefore increase fracture energy [33].…”

Section: Effect Of Fibres On Flexural Strengthmentioning

confidence: 99%

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Investigation of Physical, Mechanical, Tribological and Biodegradable Properties of Hybrid Natural Fiber Reinforced Polymer Composite

Ravi

Balaji²,

Katiyar

2023

Preprint

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This study has investigated the effect of natural fibres such as kenaf, coconut, and jute and their combination as reinforced in an epoxy polymer matrix (NFRP) on mechanical properties (impact, flexural, tensile strength, and hardness), thermal stability, tribological properties, and biodegradability. The raw fibres were chemically treated with 3% NaOH for 24 hrs, and 10 wt.% was blended in the epoxy matrix. Further, a composite surface Morphology and fibre dispersion were analysed using a scanning electron microscope. An improvement of 30.39%, 1157.7%, and 30.98% in impact strength, hardness and tensile strength, respectively, compared to pure epoxy composite. Further, the tribological study has shown a lesser frictional coefficient (~ 0.275) in hybrid NFRP than in other composites. Moreover, the mixed NFRP has demonstrated excellent biodegradable properties compared to other NFRP and pure composites.

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Static and dynamic mechanical analysis of hybrid natural fibre composites for engineering applications

Cited by 19 publications

References 53 publications

Utilization of response surface methodology to optimize the mechanical behaviour of flax/nano TiO2/Epoxy based hybrid composites under liquid nitrogen environment

Utilization of response surface methodology to optimize the mechanical behaviour of flax/nano TiO2/Epoxy based hybrid composites under liquid nitrogen environment

Dynamic mechanical characteristics of natural fiber hybrid composites, bio composites and nano composites –a review

Investigation of Physical, Mechanical, Tribological and Biodegradable Properties of Hybrid Natural Fiber Reinforced Polymer Composite

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