scholarly journals Mechanical behavior of a lower limb prosthetic socket made of natural fiber reinforced composite

2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Wahbi Mankai ◽  
◽  
Sami Ben Brahim ◽  
Brahim Ben Smida ◽  
Ridha Ben Cheikh ◽  
...  
Keyword(s):  
Natural Fiber ◽  
Fatigue Testing ◽  
Glass Fibers ◽  
Wild Plant ◽  
Static Test ◽  
Synthetic Fibers ◽  
Prosthetic Socket ◽  
Reinforced Composite ◽  
Alfa Fibers ◽  
Orthopedic Applications

Transtibial sockets are commonly made of composites reinforced with expensive synthetic fibers such as carbon or glass fibers. It would be very beneficial to replace conventional fibers with the natural ones produced locally using an abundant wild plant like alfa (Stipa tenacissima) fiber that is economically sustainable and environmentally friendly. This work is aimed at studying the static and dynamic behavior of transtibial sockets produced from alfa and carbon fibers. The ultimate strength obtained during the static test on the carbon fiber socket and the alfa fiber socket is 3,400 and 2,900 N, respectively. Fatigue testing on the alfa fiber socket yielded a fatigue life of about 2,325,000 cycles. Locally produced alfa fibers could be used as reinforcement of composite materials in orthopedic applications such as transtibial sockets. This could make prosthesis more affordable and serve as basis for design of new standard sockets as a result of fatigue and strength data. Further mechanical viability study should be performed to ensure the feasibility of using alfa fibers in sockets.

The Experimental Investigation on Water Absorption Characteristics of Natural Fiber Composites

2014 ◽  
Vol 984-985 ◽  
pp. 248-252
Author(s):  
S. Vijayakumar ◽  
S. Manikandan ◽  
L. Karunamoorthy
Keyword(s):  
Water Absorption ◽  
Rice Straw ◽  
Natural Fiber ◽  
Natural Fibers ◽  
Alkaline Treatment ◽  
Time Intervals ◽  
Synthetic Fibers ◽  
Reinforced Composite ◽  
Major Variation ◽  
Absorption Characteristics

Natural fibers are used for replacing synthetic fibers as reinforcement in various matrices. This paper is presents the fabrication and water absorption characteristics of various natural fibers reinforced composite fabricated by hand layering technique. The water absorbing capacity, diffusion and permeability of various natural fibers like rice straw, Kenaf, Coconut Spathe, Coconut Guinit reinforced composite with different dipping time intervals were analyzed. Morphological analysis was carried out on fabricated and soaked samples using scanning electron microscope. From the experimental work it is observed that coconut guinits and rice straw shows comparatively very low water absorbing capacity. Alkaline treatment of fibers doesnot have any major variation in water absorbing capacity.

scholarly journals Techniques for Modelling and Optimizing the Mechanical Properties of Natural Fiber Composites: A Review

Fibers ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 6
Author(s):  
Timothy K. Mulenga ◽  
Albert U. Ude ◽  
Chinnasamy Vivekanandhan
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Natural Fiber ◽  
Natural Fibers ◽  
Fiber Composites ◽  
Computational Techniques ◽  
Natural Fiber Composites ◽  
Synthetic Fibers ◽  
Reinforced Composite ◽  
And Performance

The study of natural fiber-based composites through the use of computational techniques for modelling and optimizing their properties has emerged as a fast-growing approach in recent years. Ecological concerns associated with synthetic fibers have made the utilisation of natural fibers as a reinforcing material in composites a popular approach. Computational techniques have become an important tool in the hands of many researchers to model and analyze the characteristics that influence the mechanical properties of natural fiber composites. This recent trend has led to the development of many advanced computational techniques and software for a profound understanding of the characteristics and performance behavior of composite materials reinforced with natural fibers. The large variations in the characteristics of natural fiber-based composites present a great challenge, which has led to the development of many computational techniques for composite materials analysis. This review seeks to infer, from conventional to contemporary sources, the computational techniques used in modelling, analyzing, and optimizing the mechanical characteristics of natural fiber reinforced composite materials.

scholarly journals Critical Review of Natural Fiber Reinforced Hybrid Composites: Processing, Properties, Applications and Cost

Polymers ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 3514
Author(s):  
M. J. Suriani ◽  
R. A. Ilyas ◽  
M. Y. M. Zuhri ◽  
A. Khalina ◽  
M. T. H. Sultan ◽  
...  
Keyword(s):  
Natural Fiber ◽  
Hybrid Composites ◽  
Natural Fibers ◽  
Fiber Reinforced ◽  
Synthetic Fibers ◽  
Reinforced Composite ◽  
Fiber Reinforced Polymer Composites ◽  
Natural Composites ◽  
Composites Processing ◽  
Processing Properties

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.

Challenges on machining characteristics of natural fiber-reinforced composites – A review

2020 ◽  
pp. 073168442094077 ◽  
Author(s):  
Sonia S Raj Raj ◽  
J Edwin Raja Dhas ◽  
CP Jesuthanam
Keyword(s):  
Natural Fiber ◽  
Natural Fibers ◽  
Fiber Reinforced Composites ◽  
Green Economy ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Synthetic Fibers ◽  
Reinforced Composite ◽  
Secondary Operations ◽  
New Generation

The emerging “green” economy is based on energy efficiency, renewable food stocks in polymeric products, industrial processes that reduce carbon emissions, and recyclable materials. Natural fiber is a type of renewable source and a new generation of reinforcements and integrators for polymer-based materials. Because of its advantages over synthetic fibers, the use of natural fibers as reinforcements in composite materials has become important in recent years. To meet certain design criteria, natural fiber-reinforced composites impose certain secondary operations during assembly. Limited literature is available only in connection with the processing of natural fiber-reinforced composites. This paper analyzes a comprehensive review of the natural fiber-reinforced composite processing literature along with the challenges during processing.

A Short Review on Jute Fiber Reinforced Composites

2021 ◽  
Vol 1019 ◽  
pp. 32-43
Author(s):  
Prashant B. Shelar ◽  
U. Narendra Kumar
Keyword(s):  
Natural Fiber ◽  
Natural Fibers ◽  
Short Review ◽  
Jute Fiber ◽  
Reinforced Composites ◽  
Construction Sector ◽  
Synthetic Fibers ◽  
Reinforced Composite ◽  
Long Time ◽  
Textile Sector

Composites have been used from very long time for solving technological problems withuse of Natural Fibers due to their unique, superior properties and light weight. Natural Fibers are nowa common material used and has created an impact in terms of product performance and their lightweight. Natural Fibers have created an enthusiasm and use of them has been increased to take overthe place of synthetic fibers in different fields. Jute fiber is assuring reinforcement in composite. Juteoneof the natural Fiber, is most promising and is readily available, degradable and possesses goodmechanical properties. This review is to provide a focus on Jute Fiber and its use different sectors suchas construction sector, automobile sector, textile sector, etc. In addition to this, it also gives basic ideaof Natural Fibers and their Reinforced Composite. This review provides an overview of importance ofthe factors to be considered when designing the composites which affects the mechanical properties.

A Review on the Mechanical and Physical Properties of Natural Fiber Composites

2012 ◽  
Vol 229-231 ◽  
pp. 276-281 ◽  
Author(s):  
M. Zaleha ◽  
M. Shahruddin ◽  
I. Maizlinda Izwana
Keyword(s):  
Composite Material ◽  
Natural Fiber ◽  
Natural Fibers ◽  
Natural Fibre ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Synthetic Fibers ◽  
Reinforced Composite ◽  
Mechanical And Physical Properties ◽  
Reinforced Composite Material

Research on the use of natural fibers as replacement to man-made fibre in fiber reinforced composites have received more interest and opened up further industrial possibilities. Natural fibre presents many advantages compared to synthetic fibers which make them attractive as reinforcements in composite material. They come from abundant and renewable resources, which ensures a continuous fibre supply and a significant material cost saving to the plastics, automotive and packaging industries. The paper reviews the previous and current research works published in the field of natural fiber reinforced composite material with special reference in mechanical properties of the natural fiber reinforced composite.

Evaluation of the Flexural Properties of Pineapple Reinforced Polymer Composite for Automotive and Electrical Applications

2014 ◽  
Vol 893 ◽  
pp. 271-274 ◽  
Author(s):  
B. Vijaya Ramnath ◽  
C. Vinodh Krishna ◽  
S. Karthik ◽  
K. Saravanan ◽  
V.M. Manickavasagam ◽  
...  
Keyword(s):  
Natural Fiber ◽  
Low Cost ◽  
Glass Fibers ◽  
Natural Fibers ◽  
Flexural Properties ◽  
Fiber Reinforced ◽  
Horizontal Orientation ◽  
Reinforced Composite ◽  
Reinforced Polymer ◽  
Three Samples

The interest in natural fibers has been rising in the past decade due to low cost and abundant availability. Though the composites made from artificial fibers possess superior properties when compared to natural fiber reinforced composites, their high cost makes it unviable in day-to-day applications. This paper is an evaluation of a pineapple fiber reinforced composite using epoxy resin as matrix. Glass fibers are provided as the outer layers to improve the surface finish and strength. Using hand lay-up method, fibers of pineapple are assembled in alternate layers of vertical and horizontal orientation. The flexural properties of the composite are determined. Three samples are tested and it is seen that there is no appreciable variation in the properties. The average break load is 1.29 KN and the deflection is 5.533 mm. The flexural strength is calculated as 78.63MPa.

scholarly journals Characterization of a new natural fiber extracted from Corypha taliera fruit

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Taslima Ahmed Tamanna ◽  
Shah Alimuzzaman Belal ◽  
Mohammad Abul Hasan Shibly ◽  
Ayub Nabi Khan
Keyword(s):  
Tensile Strength ◽  
Natural Fiber ◽  
Natural Fibers ◽  
Morphological Characteristics ◽  
Synthetic Fiber ◽  
X Ray Diffraction ◽  
Reinforced Composite ◽  
Potential Alternative

AbstractThis study deals with the determination of new natural fibers extracted from the Corypha taliera fruit (CTF) and its characteristics were reported for the potential alternative of harmful synthetic fiber. The physical, chemical, mechanical, thermal, and morphological characteristics were investigated for CTF fibers. X-ray diffraction and chemical composition characterization ensured a higher amount of cellulose (55.1 wt%) content and crystallinity (62.5%) in the CTF fiber. The FTIR analysis ensured the different functional groups of cellulose, hemicellulose, and lignin present in the fiber. The Scherrer’s equation was used to determine crystallite size 1.45 nm. The mean diameter, specific density, and linear density of the CTF fiber were found (average) 131 μm, 0.86 g/cc, and 43 Tex, respectively. The maximum tensile strength was obtained 53.55 MPa for GL 20 mm and Young’s modulus 572.21 MPa for GL 30 mm. The required energy at break was recorded during the tensile strength experiment from the tensile strength tester and the average values for GL 20 mm and GL 30 mm are 0.05381 J and 0.08968 J, respectively. The thermal analysis ensured the thermal sustainability of CTF fiber up to 230 °C. Entirely the aforementioned outcomes ensured that the new CTF fiber is the expected reinforcement to the fiber-reinforced composite materials.

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