scholarly journals Mechanical Behaviour of Hybrid Composites Prepared using Sisal-Pineapple-Kenaf Fibre

2020 ◽  
Vol 8 (5) ◽  
pp. 3210-3214
Keyword(s):  
Impact Strength ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Rupture Strength ◽  
Value Added ◽  
Natural Fibres ◽  
Wear Properties ◽  
Sisal Fibre ◽  
Specific Strength ◽  
Kenaf Fibre

Variety of application use fibre reinforced composites because of their intrinsic properties in mechanical strength, renewability and low production cost compared to conventional materials. Natural fibres are environmentally friendly their use will not break the budget when used as an alternative to the regular materials. Reinforcement used in polymer is either man-made or natural. Man-made synthetic, metallic, semi-synthetic, polymer fibres have superior specific strength but their high cost of production limits its application and feasibility to make composites. Recently there is a rise in use of natural fibres from various natural resources which are available abundantly. Composites based on natural fibres have their advantages of cost in making the fibres from different vegetables, wood, animals and minerals. In this work a thorough and systematic inquiry regarding better utilization of sisal fibre for making value-added products has been carried out. Various hybrid composite test specimens as per ASTM were prepared with natural fillers such as sisal-pineapple-Kenaf fibres by using hand layup method. The physical and mechanical characteristics of prepared hybrid composite with sisal fibre, pineapple fibre and kenaf fibre are the main objective the research. The various mechanical properties of the hybrid composites like tensile strength, rupture strength, impact strength, shear strength, hardness, and wear strength are studied by standard experiment methods. The experimental results were discussed. The experiments exposed that the use of sisal fibre when compared with similar fibres in a composite increase the most of the physical properties like tensile, rupture, wear properties of the material where as impact strength of the material is lowered. Surface morphology of the sisal fibre after tensile loading is studied microscopically.

scholarly journals Determination of mechanical properties of okra, sisal fibre and polyester based hybrid composite

2021 ◽  
Vol 309 ◽  
pp. 01153
Author(s):  
T. Arun Kumar ◽  
B. Sunil ◽  
K. Srividya ◽  
Sd. AbdulKalam ◽  
Ch. Mohan Sumanth
Keyword(s):  
Hybrid Composite ◽  
Hybrid Composites ◽  
Research Work ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Experimental Development ◽  
Sisal Fibre ◽  
Fibre Composites ◽  
Load Carrying

The natural fibre reinforced composites have the advantage of being light weight, renewable, cheap and eco–friendly when compared to the synthetic fibres. So, there is a need to investigate potentiality of natural fibre which can be used in highly demanding situations. An attempt has been made in the present work to explore the possible uses of variety of cultivated and wild grown fibres in nature that aids in the development of new composites for load carrying structures. The present research work has been carried out to make use of okra /sisal natural fibres. The aim of this paper is to describe the experimental development and characterization of new set of hybrid natural fibre composites which is made by reinforcing okra /sisal fibres with polyester resin in matrix by using hand layup method. The natural fibres were extracted by retting and combing process manually. The hybrid composites were prepared using okra/sisal fibres of 30/70, 50/50, 70/30 fibre weight ratios, when subjected to varying weights of fibres (0. 4, 0. 8, 1. 2, 1. 6, 2) grams. The tensileand impact properties were carried out using hybrid composite specimens.

Si3N4/Graphene binary particles reinforced hybrid titanium composites and their characterization

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Tugba Mutuk ◽  
Mevlüt Gürbüz
Keyword(s):  
Hybrid Composite ◽  
Hybrid Composites ◽  
Graphene Nanoplatelets ◽  
Powder Metallurgy Method ◽  
Matrix Composites ◽  
Compressive Behavior ◽  
Titanium Matrix ◽  
Wear Properties ◽  
Titanium Matrix Composites ◽  
Matrix Density

Abstract This study reports on silicon nitride (Si3N4) and graphene nanoplatelets binary powder reinforced hybrid titanium composites obtained by a powder metallurgy method. Si3N4 powder was added at 3 wt.% and graphene nanoplatelets were added in various amounts (0.15, 0.30, 0.45, 0.60 wt.%) in the titanium matrix. Density, micro-Vickers hardness, compressive behavior, wear properties and microstructure of the hybrid composites were evaluated. Addition of different percentages of graphene nanoplatelets and 3 wt.% Si3N4 to the titanium matrix composites significantly enhanced mechanical properties. The highest hardness (634 HV) and compressive strength (1458 MPa) values were measured for 0.15 wt.% graphene nanoplatelets and 3 wt.% Si3N4 added titanium hybrid composite. The lowest mass loss and wear rate (Δm = 4 mg, W = 6.1×10–5 mm3 (N m)–1) values were measured for the same 0.15 wt.% graphene nanoplatelets and 3 wt.% Si3N4 added titanium hybrid composite compared with pure Ti.

scholarly journals Comparative Study of Mechanical Properties and Thermal Stability on Banyan/Ramie Fiber-Reinforced Hybrid Polymer Composite

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
T. Raja ◽  
S. Ravi ◽  
Alagar Karthick ◽  
Asif Afzal ◽  
B. Saleh ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Impact Strength ◽  
Hybrid Composite ◽  
Composite Laminates ◽  
Hybrid Composites ◽  
Natural Fibers ◽  
Synthetic Fiber ◽  
Ramie Fiber ◽  
Fabric Composite

The usage of natural fibers has increased recently. They are used to replace synthetic fiber products in aircraft and automobile industries. In this study, natural fibers of bidirectional banyan mat and ramie fabrics are used for reinforcement, and the matrix is an epoxy resin to fabricate composite laminates by traditional hand layup technique at atmospheric temperature mode. Five different sequences of reinforcements are as follows to quantify the effect of thermal stability and mechanical behavior of silane-treated and untreated hybrid composites. The results revealed that silane-treated fabric composite laminates were given enhanced mechanical properties of 7% tensile, 11% flexural, and 9% impact strength compared with untreated fabric composite, and at the same time when the increasing of ramie fabric was given the positive influence of 41% improved tensile strength of 40.7 MPa, 49% improved in flexural strength of 38.9 MPa and negative influence in 57% lower impact strength in sample E and positive value in sample A 21.12 J impact energy absorbed in the hybrid composite. Thermogravimetric analysis (TGA) revealed the thermal stability of the hybrid composite. In sample A, the thermal stability is more than in other samples, and 410°C is required to reduce the mass loss of 25%. The working mass condition of the hybrid composite is up to 3.25 g after it moves to degrade.

Alkali treatment and its effect on tribological properties of natrually woven coconut sheath polyester composite

2014 ◽  
Vol 4 (2) ◽  
Author(s):  
I. Siva ◽  
J.T. Winowlin Jappes ◽  
Z. Szakal ◽  
Jacob Sukumaran
Keyword(s):  
Tribological Properties ◽  
Hybrid Composites ◽  
Alkali Treatment ◽  
Low Cost ◽  
Alkaline Treatment ◽  
Natural Fibres ◽  
Tribological Behaviour ◽  
Wear Properties ◽  
Low Friction ◽  
Sem Images

In the recent years natural fibres have drawn great interest for its bio-degradability, low cost and its availability in nature. Among different types of natural fibres, naturally woven coconut sheath fibres are one of the recently explored alternatives for synthetic fibres. These fibres are generally treated with alkali for enhancing mechanical properties and reinforcing characteristics. Tribological applications like gears, cams, bearings, etc. can be benefited from such composites. In most cases chemical treatment are done favouring the structural properties however, their influence on tribological properties are rather not considered. In the current research, hybrid composites (polyester resin with naturally woven coconut sheath (N) and glass fibres (G)) were tested against hardened steel counterface in a pin on disc configuration. Tests were performed at 40 N normal force and 3.5 m/s sliding velocity. From the results all hybrid combinations except (NNN) shows degrading wear properties with the alkaline treatment. The friction properties are modified by having low friction coefficients for all combinations except NGN and GGG hybrids. From the observed SEM images the surface morphology of NNN hybrid significantly differs from the rest of the combinations in both treated and untreated specimens. The partial removal of individual phase (resin) prevails in untreated specimen for which the fibres are highly visible. However, such phenomenon is not dominant in the alkali treated material showing better reinforcing behaviour complimenting low friction properties. The alkali treated specimen has reduced fibre size comparing the untreated specimen which results in low wear resistance. Compromise between friction and wear properties between each other the untreated fibres are best suited for tribological applications. Furthermore, investigations on treatment process and other treatments might have some influence in tribological behaviour.

Effect of Alkaline Treatment on Tensile and Impact Strength of Kenaf/Kevlar Hybrid Composites

2015 ◽  
Vol 763 ◽  
pp. 3-8 ◽  
Author(s):  
Noor Haznida Bakar ◽  
Koay Mei Hyie ◽  
Aidah Jumahat ◽  
Anizah Kalam ◽  
Z. Salleh
Keyword(s):  
Hybrid Composite ◽  
Hybrid Composites ◽  
Unsaturated Polyester ◽  
Fibre Surface ◽  
Alkaline Treatment ◽  
Morphological Examination ◽  
Impact Performance ◽  
Kenaf Fibre ◽  
The Matrix ◽  
Polyester Matrix

This study is about the hybrid composite which used the woven Kevlar, long Kenaf fibre, and unsaturated polyester as the matrix. It focused on the mechanical characterization and properties of hybrid composite. The hybrid composites were fabricated by treated and untreated kenaf fibre and Kevlar as reinforcement in unsaturated polyester matrix using hand lay-up process. Effect of 6wt% of sodium hydroxide (NaOH) on the hybrid composites were analyzed using X-ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR) analysis. The tensile and impact performance of the samples were tested according to the standard ASTM D3039 and ASTM D3763, respectively. Based on scanning electron micrograph (SEM) morphological examination, it revealed that the interfacial adhesion between the fibre surface and polymer matrix were improved. The results proved that the alkaline treatment can help to improve the mechanical properties compared to the untreated kenaf fibre.

Mechanical, Absorption and Swelling Properties of Vinyl Ester Based Natural Fibre Hybrid Composites

2021 ◽  
Author(s):  
Nadeem Ahmed Nasimudeen ◽  
Sharwine Karounamourthy ◽  
Joshua Selvarathinam ◽  
Senthil Muthu Kumar Thiagamani ◽  
Harikrishnan Pulikkalparambil ◽  
...  
Keyword(s):  
Impact Strength ◽  
Hybrid Composite ◽  
Vinyl Ester ◽  
Moisture Absorption ◽  
Hybrid Composites ◽  
Natural Fibre ◽  
Potential Candidate ◽  
Swelling Properties ◽  
Flexural Testing ◽  
Structural Applications

Natural fibres such as Banana (B), Jute (J) and Kenaf (K) were hybridized in different stacking sequences in vinyl ester. The composites with hybridized fibres were tested to evaluate their tensile, flexural and impact properties. Further, they were also tested for their water absorption and thickness swelling behavior. The hybridization of the fibre mats had an encouraging outcome on the mechanical behavior. The JKBKBJ hybrid composite possessed the maximum tensile strength (34.12 MPa) while maximum stiffness of 1.667 GPa was observed for the KBJJBK hybrid composites. The observations from the flexural testing indicated that the hybrid composites resisted the flexural load for higher displacement. All the hybrid configurations presented better impact strength over the composites reinforced with kenaf and jute fibres. Among the hybrid composites investigated, the KJBBJK hybrid composite displayed highest impact strength (12.32 kJ/m2). The improved strength, stiffness and lower moisture absorption properties make the composites with hybridized fibres a potential candidate for the light weight structural applications.

Evaluating the Mechanical Properties of Snake Grass Fibre and Sisal Fibre Hybrid Composites by Injection Moulding Method

2019 ◽  
Vol 11 (3) ◽  
Author(s):  
T. Vinodkumar ◽  
M. Chandrasekaran ◽  
P. Vivek ◽  
S. Arunkumar ◽  
S. Padmanabhan
Keyword(s):  
Injection Moulding ◽  
Hybrid Composites ◽  
Raw Materials ◽  
Poly Lactic Acid ◽  
Element Analysis ◽  
Sisal Fibre ◽  
Specific Strength ◽  
Alternative Material ◽  
Experimental Values ◽  
The Impact

This study motivates the state of relying on the non-degradable plastic packaging to develop the alternative material namely reinforced poly lactic acid (PLA) with snake grass fibre (SG) and sisal fibre (SF) bio composite. Injection moulding fabrication method is used. For mechanical characterization, SG/SF is loaded with an effect from 10 to 30 wt.%. Similarly, the tensile and flexural properties are significant to improve the attained wt. % of SG/SF. Additionally, PLA-SG/SF bio composite produced is having high specific strength and specific modulus. The suggested one in SG/SF may be integrated into PLA to reduce the mass of the end product and substantially reduce the cost of raw materials. The impact strength tends to decrease with SG/SF content. Finite element analysis was carried out to correlate the experimental values.

Correlation of structural and mechanical properties for Al-Al2O3-SiC hybrid metal matrix composites

2021 ◽  
pp. 002199832110115
Author(s):  
Naseem Ahamad ◽  
Aas Mohammad ◽  
Moti Lal Rinawa ◽  
Kishor Kumar Sadasivuni ◽  
Pallav Gupta
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Impact Strength ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Structural Characteristics ◽  
Base Material ◽  
Physical Property ◽  
Weight Percentage ◽  
Al Matrix

The aim of the present paper is to examine the outcome of Al2O3-SiC reinforcements on structural and mechanical behavior of Al matrix based hybrid composites. Al-Al2O3-SiC hybrid composite has been developed through stir casting with addition of ceramics i.e. Al2O3-SiC (2.5 wt.%, 5.0 wt.%, 7.5 wt.% and 10.0 wt.%) in relative and symmetrical proportion. The structural characteristics, i.e. phase, microstructure, EDS; physical property i.e. density and the mechanical properties, i.e. hardness, impact strength and tensile strength of fabricated specimens have been investigated. XRD represents the transitional phase formation among Al base material and Al2O3-SiC ceramic phases with inter-atomic bonding between them. SEM reveals that the Al2O3-SiC fragments has distributed symmetrically in Al matrix. EDS spectrum of various samples are in confirmation with the XRD results. Density of hybrid composite reduces with increase in weight percentage of ceramic reinforcements i.e. Al2O3-SiC because ceramic particle gains low density after preheating. Hardness of hybrid composites increases upto 5 wt.% variation of ceramic reinforcements i.e. Al2O3-SiC after that it decreases. Impact strength of hybrid composite has been increased with an increase in weight percentage of ceramic. Al-2.5 wt.% Al2O3-2.5 wt.% SiC shows maximum ultimate tensile strength. It is expected that the prepared hybrid composites will be useful for fastener studs.

scholarly journals Mechanical and corrosion properties of AlCu matrix hybrid composite materials

2019 ◽  
Vol 51 (1) ◽  
pp. 81-92 ◽  
Author(s):  
Serkan Islak
Keyword(s):  
Corrosion Resistance ◽  
Composite Materials ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Rupture Strength ◽  
Corrosion Properties ◽  
Pressing Method ◽  
Transverse Rupture Strength ◽  
The Matrix ◽  
Mechanical And Corrosion Properties

In this study, AlCu matrix hybride composites with various ratios of boron carbide (B4C), hexagonal boron nitride (hBN), and graphite (Gr) were produced by using hot-pressing method. The microstructure, density, mechanical and corrosion properties of these composites were investigated. Optical microscopy, scanning electron microscopy, and X-ray diffraction were used to characterize the microstructures, and the experimental densities of the composites were measured using a helium pycnometer. The mechanical properties including the hardness and transverse rupture strength were investigated using hardness and three-point bending tests, respectively. In addition, the hybrid composites were immersed in an aqueous solution of 3.5 wt.-percent NaCl at pH 3 for potentiodynamic and corrosion rate measurements. These tests revealed that a microstructure in which reinforcing particles are almost homogeneously dispersed in the matrix was obtained. Density measurements have shown that very dense and compact hybrid AMCs are produced. The hardness and transverse rupture strength of the composites were significantly increased by particulate addition to the matrix. Depending on the type and amount of reinforcement material, differences in the corrosion resistance of the hybrid composites have been determined. The results show that AlCu-8B4C-2Gr hybrid composite material has the highest corrosion resistance among the composite materials.

scholarly journals Thermal and Dynamic Properties of Woven Kenaf/Carbon Fibre Reinforced Epoxy Hybrid Composite

2019 ◽  
Author(s):  
Humaira Alias Aisyah ◽  
Md. Tahir Paridah ◽  
Salit Mohammad Sapuan ◽  
Abdan Khalina ◽  
Omer Berk Berkalp ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Carbon Fibre ◽  
Hybrid Composite ◽  
Hybrid Composites ◽  
Dynamic Properties ◽  
Fibre Composite ◽  
Carbon Fibre Composite ◽  
Kenaf Fibre ◽  
Pure Carbon ◽  
Woven Kenaf

The effects of carbon fiber hybridisation on the thermal properties of woven kenaf reinforced epoxy composites kenaf fibre were studied. Woven kenaf hybrid composites at the different weave designs of plain and satin, and fabric count of 5 × 5 and 6 × 6 were manually prepared by vacuum infusion technique. Thermal properties of pure carbon fibre and hybrid composites were conducted by using thermogravimetric analyser (TGA) and differential scanning calorimeter (DSC). It was found that at high kenaf fibre content showed better thermal stability while the highest thermally stable was found in pure carbon fibre composite. The TG and DTG results showed that the amount of residue decreased in plain-designed hybrid composite compared to satin-designed hybrid composite. The DSC data revealed that the presence of woven kenaf increase decomposition temperature.

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