Experimental investigation on the mechanical properties of aluminium sandwiched sisal/kenaf/aloevera/jute/flax natural fibre-reinforced epoxy LY556/GY250 composites

2020 ◽  
pp. 096739112097350
Author(s):  
Jeswin Arputhabalan ◽  
L Karunamoorthy ◽  
K Palanikumar
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Fibre Composite ◽  
Matrix Material ◽  
Aloe Vera ◽  
Weight Ratio ◽  
High Strength ◽  
Natural Fibre ◽  
Mechanical Tests ◽  
Natural Fibres

In engineering, composites have indicated a more profound influence in the recent development of materials with high strength to weight ratio. The purpose of this work is to identify the different and specific properties which a composite possesses when various reinforcement fibres are used in different epoxy matrix material. Composite materials have a major role to play with meeting that requirement. Many natural fibre composite materials possess good mechanical properties but still lack in satisfying applications requirements and alternate for which is seen as sandwich natural fibre composites. In this investigation, an effort has been made to study the mechanical properties exhibited by sandwich epoxy composite reinforced with various commonly used natural fibres, namely Aloevera, Kenaf, Sisal, Jute and Flax. The polymer resin used as matrix is also varied using Epoxy LY556 and Epoxy GY250. The originality of this work is in the use of Epoxy GY250 to fabricate sandwich composites with five commonly available natural fibres and compare its performance to the more widely used Epoxy LY556. It has been determined through various mechanical tests, which particular epoxy resin bonds better with the natural fibres namely, jute, sisal, aloe vera, kenaf and flax thereby providing better tensile, impact and flexural properties. The investigation is hoped to provide an insight into how the environmentally friendly natural fibres interact with the varying matrix resins and how this interaction affects the mechanical properties of said composites.

Fabrication and Comparison of Mechanical Properties of Jute and Glass Fibre Reinforced Composites

2014 ◽  
Vol 592-594 ◽  
pp. 344-348
Author(s):  
Ram Rohit ◽  
Linford Pinto ◽  
K.Mallikharjuna Babu ◽  
Martin Jebraj ◽  
Harsha R. Gudi
Keyword(s):  
Mechanical Properties ◽  
Building Materials ◽  
Fibre Composite ◽  
Damping Ratio ◽  
Weight Ratio ◽  
High Strength ◽  
Natural Fibre ◽  
Mechanical Tests ◽  
Reinforced Composites ◽  
Artificial Fibre

The properties of fiber reinforced composites (FRP) like high strength to weight ratio, high stiffness to weight ratio, flexibility in design, ease of fabrication with economical savings as compared to metal alloys, make it an excellent choice for various range of products from building materials, sporting equipment, appliances, automotive parts, boats, canoe hulls to bodies for recreational vehicles. In this study the properties of natural fibre composite are compared with composite made of artificial fibres. The natural fibre chosen is jute fibre and the artificial fibre chosen is glass fiber. Polyester resin was the matrix used because of compatibility, cost effectiveness and easy availability. The composites were fabricated by Hand Layup technique and the number of layers of composite laminate was varied as three, four and five. The specimens were subjected to mechanical tests and Young’s Modulus, Ultimate Strength were evaluated. Modal analysis was carried out to determine the damping characteristics through damping ratio. A comparison of the two composites in terms of mechanical properties is made and the results are tabulated.

scholarly journals Composite materials based on natural fibres applied for structural reinforcement

2022 ◽  
Vol 960 (1) ◽  
pp. 012007
Author(s):  
G Bou Abdallah ◽  
I Ivanova ◽  
J Assih ◽  
C Diagana ◽  
D Dontchev
Keyword(s):  
Composite Materials ◽  
Rapid Development ◽  
Weight Ratio ◽  
High Strength ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Experimental Program ◽  
Existing Structures ◽  
Structural Reinforcement ◽  
External Reinforcement

Abstract Environmental problems and environmental protection triggered a rapid development of natural fibres as sustainable materials for the reinforcement of reinforced concrete structures. Synthetic fibre polymer composite materials have been widely accepted by the construction industries as an effective external reinforcement material to rehabilitate deficiencies in existing structures. These materials have exceptional performance such as high strength to weight ratio, corrosion resistance and lightness. However, the disadvantages include high costs during manufacturing and end-of-life services, less environmentally friendly and causing adverse effects on human health. This article presents an experimental program on the use of natural fibres as reinforcement in composite materials for structural strengthening. Different types of natural fibre fabrics (hemp, flax, mixed hemp and cotton) in terms of their mechanical properties were studied. The fibre and fibre fabric sheets were tested in tension test and compared with carbon and glass fibre fabric sheet as reference. So, this study carries out the effect of natural hemp and flax fibre fabric thickness on ultimate loads of specimens. In addition, the ultimate load and stiffness of strengthened beams were investigated. In fact, the results show that the reinforcement technique allows to increase the load-bearing of strengthened structure by 8% to 35% in bending tests.

scholarly journals Mechanical Characterization of Banana Fibre Reinforced Natural fibre Composite

2019 ◽  
Vol 9 (2) ◽  
pp. 2466-2471
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Flexural Strength ◽  
Fibre Composite ◽  
Weight Ratio ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Reinforced Composites ◽  
Banana Fibre ◽  
Fibre Reinforced Composites

Fibre reinforced composites have been an essential concern in various fields, especially in the field of aerospace owing to its high strength to weight ratio, toughness, corrosion resistant and low cost. Natural fibre reinforced composites have produced better results in mechanical properties like impact, toughness and fatigue strengths when compared to synthetic fibre reinforced composites. Recently researches have been conducted on different varieties of natural fibres for use in plastics such as jute straw, wood, rice husk, wheat, barley etc. Natural fibres have also attracted the attention of researchers due to its availability, renewability, degradability and most importantly ecofriendly. In this work an attempt is made to improve the mechanical properties of the composite and also to enhance the compatibility of the fibres with the matrix. The composite is prepared by reinforcing banana fibres into unsaturated epoxy matrix using hand layup method. Mechanical properties such as tensile strength, flexural strength and hardness strengths are carried out on the specimens made by reinforcing with 5%, 10 % and 15 %concentration of banana fibre by weight. The results showed that the composite with 15% concentration of banana fibre produced higher tensile strength of 21.43 MPa, flexural strength of 0.895 kPa and Shroud hardness of 59.3.

Investigation on Flexural and Impact Properties of Abaca and Manila Hybrid Composite

2014 ◽  
Vol 1051 ◽  
pp. 102-106
Author(s):  
B. Vijaya Ramnath ◽  
V.M. Manickavasagam ◽  
C. Elanchezhian ◽  
A. Santhosh Shankar ◽  
R. Sundarrajan ◽  
...  
Keyword(s):  
Hybrid Composite ◽  
Composite Laminate ◽  
Room Temperature ◽  
Fibre Composite ◽  
Weight Ratio ◽  
High Strength ◽  
Natural Fibre ◽  
The Past ◽  
Fibre Composites ◽  
Increased Strength

Bio-fibre composites are increasingly replacing conventional and synthetic composite materials for the past two decades. This is due to their abundant availability, high strength to weight ratio and bio-degradability. Suitable properties of natural fibres can be imparted by changing the orientation of the fibres during manufacturing process. This paper proposes a hybrid property of natural fibre composite made up of Manila and abaca fibres as reinforcing agents with epoxy resin as matrix .Hand lay-up process is used for manufacturing this composite laminate. Then the treated fibres with increased strength are used with epoxy LY556 resin with HY951 hardener under room temperature. Three different samples are prepared and their mechanical properties like impact and flexural strength are found. This hybrid composite is effectively developed for automobile and electrical applications.

Studies on Mechanical and Flexural Strength of Carbon Nano Tube Reinforced with Hemp/Vinyl Ester/Carbon Fiber Laminated Hybrid Composite

2021 ◽  
Vol 9 (9) ◽  
pp. 699-708
Author(s):  
Nandini MC
Keyword(s):  
Composite Materials ◽  
Carbon Fiber ◽  
Vinyl Ester ◽  
Hybrid Composites ◽  
Matrix Material ◽  
High Strength ◽  
Natural Fibre ◽  
Vital Role ◽  
Hemp Fiber ◽  
Carbon Nano Tube

Abstract: In Recent days, the natural fibres from renewable natural resources offer the potential to act as a reinforcing material for polymer composites alternative to the use of glass, carbon and other man-made fibres. Among various fibres, Hemp is most widely used natural fibre due to its advantages like easy availability, low density, low production cost and satisfactory mechanical properties. Composite materials play a vital role in the field of materials to meet the stringent demands of light weight, high strength, corrosion resistance and near-net shapes. Composite is a structural material that consists of two or more combined constituents that are combined at a macroscopic level and are not soluble in each other. Composites are having two phases that are reinforcing phase like fiber, particle, or flakes & matrix phase like polymers, metals, and ceramics. In this project an attempt is made to prepare different combination of composite materials using hemp/carbon fiber and Carbon nano tube reinforcement and vinyl ester as the matrix material respectively. Composites were prepared according to ASTM standards and following test are carried out Tensile, Flexural and ILSS test. The effect of addition of Carbon nano tubes in hemp/vinyl ester/carbon fibers has been studied & it has been observed that there is a significant effect of fibre loading and performance of hemp/carbon fiber reinforced vinyl ester based hybrid composites with improved results Keywords: Hemp fiber, Vinyl ester, Carbon fiber, Tensile, Flexural and ILSS Test

Investigation on Compression and Hardness Properties of Abaca and Manila Hybrid Composite

2014 ◽  
Vol 680 ◽  
pp. 23-26
Author(s):  
V.M. Manickavasagam ◽  
B. Vijaya Ramnath ◽  
C. Elanchezhian ◽  
V. Vignesh ◽  
V. Vijai Rahul ◽  
...  
Keyword(s):  
Composite Materials ◽  
Hybrid Composite ◽  
Fibre Composite ◽  
Weight Ratio ◽  
High Strength ◽  
Vital Role ◽  
Very High

Nowadays composite materials play a vital role in automotive and aerospace industries due to their important properties like high strength to weight ratio, biodegradability and ease of production. In this paper, compression and hardness properties of a hybrid composite made of manila and abaca fibers are evaluated. Hand layup process is used in this work. The result shows that hybrid composite possesses very high strength and hardness as compared to mono fibre composite.

Analysis of Mechanical Properties on Roselle Fibre with Polymer Matrix Reinforced Composite

2016 ◽  
Vol 16 ◽  
pp. 1-6 ◽  
Author(s):  
S. Nallusamy
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Matrix Composite ◽  
Polymer Matrix ◽  
Weight Ratio ◽  
High Strength ◽  
Strength Properties ◽  
Reinforced Composite ◽  
Composite Field ◽  
Structural Applications

Over the past two decades it has been established that composite materials are the leading emerging materials. The natural fibres present a number of advantages over traditional synthetic fibres because of their better corrosion resistance, excellent thermo-mechanical properties and high strength to weight ratio. Also the composite materials play an important role in maintaining the eco-friendly design requirements. Among this, polymer matrix composite is one of the recent developing sectors on the composite field, because it has high strength with less density as compared to the metal matrix composite. Depending on the applications, the properties of the polymer reinforced composite are improved by modifying compositions, process of fabrication and direction of fibre etc. In this analysis the Roselle Fibre (Hibiscus Sabdariffa) is reinforced with polymer composite by wt % in the mode of compression molding. The mechanical properties of the above fabricated material were analyzed by ASTM Standards and also the characterization of polymer composites were analysed using SEM. The compressive strength and the hardness value were high as compared to other strength properties; hence it is more suitable for compressive and structural applications. The results concluded that the treated fibre with chemical reveals better compatibility with polymer matrix than that of untreated fibre.

scholarly journals Characterisation of Carbon Nano Tube Reinforced with hemp/vinyl Ester/Carbon Fiber Laminated Hybrid Composite

2021 ◽  
pp. 21-28
Author(s):  
Nandini MC ◽  
Dr. Shivarudraiah ◽  
Dr. H K Shivanand ◽  
Puneeth P
Keyword(s):  
Composite Materials ◽  
Carbon Fiber ◽  
Vinyl Ester ◽  
Hybrid Composites ◽  
Matrix Material ◽  
High Strength ◽  
Natural Fibre ◽  
Vital Role ◽  
And Performance ◽  
Carbon Nano Tube

In Recent days, the natural fibres from renewable natural resources offer the potential to act as a reinforcing material for polymer composites alternative to the use of glass, carbon and other man-made fibres. Among various fibres, Hemp is most widely used natural fibre due to its advantages like easy availability, low density, low production cost and satisfactory mechanical properties. Composite materials play a vital role in the field of materials to meet the stringent demands of light weight, high strength, corrosion resistance and near-net shapes. Composite is a structural material that consists of two or more combined constituents that are combined at a macroscopic level and are not soluble in each other. Composites are having two phases that are reinforcing phase like fiber, particle, or flakes & matrix phase like polymers, metals, and ceramics. In this project an attempt is made to prepare different combination of composite materials using hemp/carbon fiber and Carbon nano tube reinforcement and vinyl ester as the matrix material respectively. Composites were prepared according to ASTM standards and following test are carried out Density test, Water absorption test and Impact test. The effect of addition of Carbon nano tubes in hemp/vinyl ester/carbon fibers has been studied & it has been observed that there is a significant effect of fibre loading and performance of hemp/carbon fiber reinforced vinyl ester based hybrid composites with improved results.

Experimental Testing on Hybrid Composite Materials

2014 ◽  
Vol 592-594 ◽  
pp. 339-343 ◽  
Author(s):  
S. Sathish ◽  
T. Ganapathy ◽  
Thiyagarajan Bhoopathy
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Glass Fiber ◽  
Hybrid Composite ◽  
Experimental Testing ◽  
Fiber Composite ◽  
Weight Ratio ◽  
High Strength ◽  
Jute Fiber ◽  
Sisal Fiber

In recent trend, the most used fiber reinforced composite is the glass fiber composite. The glass-fiber composites have high strength and mechanical properties but it is costlier than sisal and jute fiber. Though the availability of the sisal and jute fiber is more, it cannot be used for high strength applications. A high strength-low cost fiber may serve the purpose. This project focuses on the experimental testing of hybrid composite materials. The hybrid composite materials are manufactured using three different fibers - sisal, glass and jute with epoxy resin with weight ratio of fiber to resin as 30:70. Four combinations of composite materials viz., sisal-epoxy, jute-epoxy, sisal-glass-epoxy and sisal-jute-epoxy are manufactured to the ASTM (American Society for Testing and Materials) standards. The specimens are tested for their mechanical properties such as tensile and impact strength in Universal Testing machine. The results are compared with that of the individual properties of the glass fiber, sisal fiber, jute fiber composite and improvements in the strength-weight ratio and mechanical properties are studied.

scholarly journals Characterisation of Natural Fibres for Sustainable Discontinuous Fibre Composite Materials

Materials ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2129 ◽  
Author(s):  
Ali Kandemir ◽  
Thomas R. Pozegic ◽  
Ian Hamerton ◽  
Stephen J. Eichhorn ◽  
Marco L. Longana
Keyword(s):  
Mechanical Properties ◽  
High Performance ◽  
Material Selection ◽  
Fibre Composite ◽  
Single Fibre ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Fibre Composites ◽  
Waste Flow ◽  
Mechanical Performances

Growing environmental concerns and stringent waste-flow regulations make the development of sustainable composites a current industrial necessity. Natural fibre reinforcements are derived from renewable resources and are both cheap and biodegradable. When they are produced using eco-friendly, low hazard processes, then they can be considered as a sustainable source of fibrous reinforcement. Furthermore, their specific mechanical properties are comparable to commonly used, non-environmentally friendly glass-fibres. In this study, four types of abundant natural fibres (jute, kenaf, curaua, and flax) are investigated as naturally-derived constituents for high performance composites. Physical, thermal, and mechanical properties of the natural fibres are examined to evaluate their suitability as discontinuous reinforcements whilst also generating a database for material selection. Single fibre tensile and microbond tests were performed to obtain stiffness, strength, elongation, and interfacial shear strength of the fibres with an epoxy resin. Moreover, the critical fibre lengths of the natural fibres, which are important for defining the mechanical performances of discontinuous and short fibre composites, were calculated for the purpose of possible processing of highly aligned discontinuous fibres. This study is informative regarding the selection of the type and length of natural fibres for the subsequent production of discontinuous fibre composites.

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