Study on the effects of fiber orientation on the mechanical properties of natural fiber reinforced epoxy composite by finite element method
Upendra Sharan GuptaAmit DharkarMohit DhamarikarArpit ChoudharyDipanshu WasnikPankaj ChouhanSudhir TiwariRajeev Namdeo
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Abstract Environmental and sustainability issues coupled with increased awareness have urged researchers to focus on natural sources that can substitute several forbidden materials. Fiber‐reinforced hybrid polymeric composites have succeeded in attracting global attention toward its suitability to replace conventional materials. Hybrid fibers have recently become immensely popular with polymer composite reinforcements for various automotive parts. Hybrid composites are developed by blending natural, synthetic, or a combination of natural or synthetic fibers in a single matrix. Hybridization allows enhancements in physical, mechanical, and thermal properties of the composites. Hybrid composites assist in achieving an optimum combination of properties than individual fiber composites. In this paper, a comprehensive review of the properties of composite reinforcement natural fibers for the application of automobile components is presented. Recent articles on emerging fiber types are reviewed and fabrication techniques required for hybrid polymer composites are discussed. A prospective study is also presented and discussed of future trends in natural fiber applications as well as needed innovations for extending their applications.
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Composite materials have fully established themselves as workable engineering materials and are now quite common place around the world. To produce composite materials provided a growing interest in utilizing fiber (natural or synthetic) as reinforcement to fibers, Natural Fiber-reinforced polymer matrix composites have gained commercial success in the semi structural and structural applications such as aircraft, automobiles, sporting goods, electronics, and appliances are quite dependent on natural fiber-reinforced plastics, and these composites are routinely designed, manufactured and used in place of synthetic fiber reinforced polymer composites. The objective of this paper is to study the behaviour of composite materials. The study is made to show the difference between synthetic and natural fibers and composites, process for their production for high performance, low cost and less weight, and study and compare different results of Mechanical Test on NFRPC.
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Hybridization of synthetic with natural fibers has been increasingly studied over the last decades given the potential to partially replace glass fibers with natural ones aiming at meeting both design requirements and environmental concerns. Despite some drawbacks about natural fibers, such as high moisture absorption and low mechanical properties, the combination with synthetic fibers is a suitable route to overcome these drawbacks. Usually, hybrid fiber-reinforced composites need to meet mechanical constraints, and consequently the microstructure of the composite must be taken care of to generate structures with proper mechanical performance. This chapter presents a systematic review on hybrid synthetic/vegetable composites reinforced epoxy composites focusing on research papers published from 2016 to 2020. A total of 531 papers were initially found, but after the exclusion criteria following the PRISMA protocol, 32 articles remained and were included in this review. The presented results focus on the type of microscopy method and analysis of the composites. In brief, this study aims to help to identify the main gaps in the literature related to the proposed topic.
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Fiber treatments and coupling agents have been applied by composites researchers to improve the functionality in the flexural loading of natural fiber reinforced composites. This paper reviews how fiber treatments upshot to flexural strength and modulus of natural fiber composites during 2000–2016. Chemical treatments improved fiber interface bonding with matrix and impart more strengths to composites. Coupling agents also ameliorate flexural properties and the combination of treatments is equally supercilious. The negative impact of fiber’s physical treatments on flexural properties of natural fiber composites also reviewed. Eventually, a number of perspectives have been concluded with the hope that our work will succor to further betterment in flexural strength of natural fiber composites.
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Increasing scientific interest has occurred concerning the utilization of natural fiber-enhanced hybrid composites that incorporate one or more types of natural enhancement. Annual natural fiber production is estimated to be 1,783,965 × 103 tons/year. Extensive studies have been conducted in the domains of natural/synthetic as well as natural/natural hybrid composites. As synthetic fibers have better rigidity and strength than natural fibers, natural/synthetic hybrid composites have superior qualities via hybridization compared to natural composites in fibers. In general, natural fiber compounds have lower characteristics, limiting the use of natural composites reinforced by fiber. Significant effort was spent in enhancing the mechanical characteristics of this group of materials to increase their strengths and applications, especially via the hybridization process, by manipulating the characteristics of fiber-reinforced composite materials. Current studies concentrate on enhancing the understanding of natural fiber-matrix adhesion, enhancing processing methods, and natural fiber compatibility. The optimal and resilient conceptions have also been addressed due to the inherently more significant variabilities. Moreover, much research has tackled natural fiber reinforced hybrid composite costs. In addition, this review article aims to offer a review of the variables that lead to the mechanical and structural failure of natural fiber reinforced polymer composites, as well as an overview of the details and costings of the composites.
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Abstract In the past two decades (2001–2020), researchers have been attracted toward hybrid composite materials reinforced with synthetic and natural fibers. Bio‐degradability and harmlessness to the environment are the major attributes of natural fibers, such qualities support these fibers to reinforce into composites. At the same time, higher moisture absorption and poor compatibility characteristics of natural fibers have forced to hybridize with other synthetic/natural fibers. Several researchers have already done the hybridization of natural fibers with synthetic/natural fibers to overcome the limitations of natural fibers. Due to this reason, we perform a literature review on the influence of hybridization on the properties of composites reinforced with synthetic and natural fibers. This review is made on resulting properties of hybrid composites such as mechanical, thermal, water absorption, tribological behavior, morphological characteristics, and other properties from the year 2001 to 2020.
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