Evaluation of Mechanical Properties of Acacia-Jute-Sisal-Glassfibrereinforced Composite

2015 ◽  
Vol 813-814 ◽  
pp. 51-56 ◽  
Author(s):  
C. Elanchezhian ◽  
B. Vijaya Ramnath ◽  
V. Ramanan ◽  
R. Saisundararam ◽  
C.S. Siddarth
Keyword(s):  
Impact Test ◽  
Weight Ratio ◽  
High Strength ◽  
Light Weight ◽  
Compression Moulding ◽  
Environment Friendly ◽  
Two Samples ◽  
Automobile Components ◽  
Maximum Content ◽  
Composite Samples

Now-a-days traditional materials are replacing the natural fibres in automobile components like dashboards, seat-backs and interior trims due to its properties like light weight, environment friendly, good stiffness and high strength to weight ratio . In the study three different continuous fibres, Acacia, Jute and Sisal were mixed in varying proportion with GFRP and epoxy resin on a determined ratio basis to get three different composite samples. These fibres were alkaline treated and moulded using compression moulding and hand lay-up technique. These samples were tested for their Tensile and Impact strengths to find the specimen with higher strength. Scanning Electron Microscope (SEM) test was also conducted to study the structure of all three specimens after tensile test. The study concludes that the sample ‘A’ which has maximum content of sisal has higher tensile strength than other two samples. Similarly impact test concludes that specimen ‘B’ and ‘C’ which has maximum content of Jute and Acacia has equal and higher strength.

scholarly journals Assessment of Mechanical Properties of Biocomposite Material by using Sawdust and Rice Husk

2019 ◽  
Vol 11 (3) ◽  
pp. 147-156
Author(s):  
Prabhat SINGH ◽  
Bhagel SINGH
Keyword(s):  
Rice Husk ◽  
Low Cost ◽  
Glass Fibers ◽  
Testing Machine ◽  
Weight Ratio ◽  
High Strength ◽  
Light Weight ◽  
Universal Testing ◽  
Biocomposite Material ◽  
Main Factor

This paper presents an experimental study on the development of biocomposite material by using sawdust (SD) and rice husk (RH). The use of composite in the present production has increased dramatically since the 1970’s. Traditional material like aluminum, steel, iron and copper etc. may be easily replaced by using this classical biocomposites. The tensile test, hardness and tear resistance test were conducted in a Universal testing machine as per ASTM D638, ASTM D2240 and ASTM D1004 standard, respectively. Although commercial industries have increasingly been concerned with the low cost, light weight and eco-friendly material, the biocomposite material has also a great potential for reduced production cost and low maintenance which have proven to be a main factor in a push towards recycled biocomposites. In this paper we have fabricated a biocomposite model from materials like sawdust, rice husk. The main reason to use biocomposites is that they are more economical and have high strength to weight ratio compared to glass fibers. Hence fabricated material can be used for various applications.

scholarly journals Effect of Curing on the Tensile and Flexural Performance of Fully Biodegradable Corn Starch/Areca Frond Composites

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Srinivas Shenoy Heckadka ◽  
Suhas Yeshwant Nayak ◽  
Manjeshwar Vijaya Kini ◽  
Revati Chowgule ◽  
Pranay Jain
Keyword(s):  
Flexural Strength ◽  
Corn Starch ◽  
Weight Ratio ◽  
High Strength ◽  
Surface Characteristics ◽  
Compression Moulding ◽  
Flexural Performance ◽  
Hot Air ◽  
Structural Applications ◽  
Unidirectional Fibre

Composites have monopolized the automotive, construction, and packaging industry. Their high strength to weight ratio has made them an integral part of numerous engineering applications. In this study biodegradable matrix is combined with areca frond fibres for developing composites for low strength structural applications. Areca frond fibres were extracted and treated with sodium bicarbonate to improve the surface characteristics. Hand lay-up and compression moulding techniques were used to fabricate composites having unidirectional fibre orientation. The specimens prepared were exposed to varied environments, namely, sunlight, OTG oven, steam oven, and hot air oven, for curing and the results were analyzed to best suit the implicated requirements. Scanning electron microscopy was used to observe the changes in surface characteristics of the frond fibres after treatment. Tensile and flexural strength of starch based/areca frond reinforced composites were evaluated according to ASTM standards. Test results revealed that composites cured in a steam oven resulted in improved tensile and flexural strength compared to other curing environments.

Design, Fabrication and Experimental Analysis of Pandanus Fibre Reinforced Polyester Composite

2014 ◽  
Vol 984-985 ◽  
pp. 253-256
Author(s):  
G. Veerakumar Vigneshwaran ◽  
Iyyadurai Jenish ◽  
Rajeshwaran Sivasubramanian
Keyword(s):  
Weight Ratio ◽  
Composite Plates ◽  
High Strength ◽  
Natural Fibre ◽  
Compression Moulding ◽  
Weight Percentage ◽  
Pine Tree ◽  
Water Treatment Process ◽  
Polyester Composite ◽  
Screw Pine

Due to the light weight, high strength to weight ratio, corrosion resistance and other advantages, natural fibre based composites are becoming important composite materials in mechanical engineering fields. The current project emphasizes the newly identified Pandanus Fibre (Pandanus Fascicularis) which is extracted from the stem of screw pine tree by the manual water treatment process. The mechanical properties of chopped Pandanus fibre by Polyester composites are investigated and compared with the similar natural fibres in the fibre reinforced composite material field. The composite plates were fabricated with raw pandanus fibres by compression moulding method with varying weight percentage and lengths of fibre.

Finite Element Analysis of Mechanical Behavior of Light-Weight Mobile FRP Bridge

2010 ◽  
Vol 163-167 ◽  
pp. 1995-1998
Author(s):  
Xin Huang ◽  
Zai Gen Mu ◽  
Peng Feng
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Material Properties ◽  
Weight Ratio ◽  
High Strength ◽  
Light Weight ◽  
The Finite Element Method ◽  
Element Analysis ◽  
Superior Corrosion Resistance ◽  
Main Material

As composite materials have advantages of high strength-to-weight ratio and superior corrosion resistance properties, it is used in emergencies in the construction of mobile bridges as the preferred material. However, In contrast to traditional steel or aluminum to the movement of the bridge as the main material, the original bridge forms need to be improved in order to reach the full of FRP material properties. In this paper, to study the domestic light-weight mobile FRP Bridge, the finite element method is used to analysis the mechanical properties of bridge.

Optimization of Process Parameters of Al-10% Cu Compacts through Powder Metallurgy

2015 ◽  
Vol 813-814 ◽  
pp. 603-607
Author(s):  
T. Pravin ◽  
M. Sadhasivam ◽  
S. Raghuraman
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Process Parameters ◽  
Weight Ratio ◽  
High Strength ◽  
Process Efficiency ◽  
Light Weight ◽  
Optimization Of Process Parameters ◽  
Maximum Process ◽  
Controlled Porosity

Powder Metallurgy (P/M) is a manufacturing process in which powders are compacted in a die to attain the final product. P/M has certain unique advantage like controlled porosity, High Strength to weight ratio. Aluminium (Al) is a light weight material, but pure Al does not possess a good strength. To achieve the strength, Copper (Cu) powders are blended at required proportions. Al along with Cu shows good mechanical properties. An attempt is made to optimize the process parameter of Al – 10% Cu powder to attain maximum process efficiency. Here optimization is done by Taghuchi’s method.

scholarly journals Effect of Changing Properties of Wythes in Precast Structural Sandwich Panels

2020 ◽  
Vol 6 (9) ◽  
pp. 1765-1778
Author(s):  
Mohamed Abo El-Naga Kandil ◽  
Ahmed H. Abdelraheem ◽  
Mohamed Mahdy ◽  
Ahmed M. Tahwia
Keyword(s):  
High Strength Concrete ◽  
Sandwich Panels ◽  
Weight Ratio ◽  
High Strength ◽  
Core Material ◽  
Light Weight ◽  
Composite Action ◽  
Strength Concrete ◽  
Concrete Face ◽  
Positive Effect

This study investigates the effects of changing in the properties of face and core wythes in structural sandwich panels (with dimensions of 500 500 mm and 120 mm total height). Concrete face wythes of three grades (80, 70, 37) MPa, thicknesses of (25, 35, and 45) mm, and three types of core materials (high density foam, polyethylene foam, and palm bark) were used in the production of panels. Steel shear connectors were installed in the panels with angle of 45º. Three-point bending load test was carried out on all panels and results were compared with both of the theoretical extremes capacities of non- composite and fully-composite states and ANSYS software results. The degree of composite action (%) and the (strength/weight) ratio were the main parameters that judged the specimens. It was found that upgrading concrete increased overall strength of slabs especially in high strength concrete (80 MPa), however the use of lightweight concrete (70 MPa) caused high (strength/weight) ratio due to very lightweight. Results revealed that decreasing thickness of concrete face wythes had a positive effect on strength/weight ratio (although the ultimate loads decreased) that enhanced the performance of panels as lightweight structural panels. The optimum face wythe thickness is that of 2.5 cm and has high (strength/weight) ratio. It was noticed that adding polyethylene foam as a core material results in positive effect and high (strength/weight) ratio. Results revealed that high strength concrete (80 MPa) and light-weight concrete (37 MPa) are very successful in the production face wythes of precast light-weight sandwich panels that can obtain high (strength/weight) ratio and high percent of composite action.

scholarly journals Impact and Hardness Characteristics of Cfrp-Kenaf-Abaca Fiber Composites

2019 ◽  
Vol 8 (4) ◽  
pp. 3530-3533
Keyword(s):  
Impact Energy ◽  
Composite Laminate ◽  
Weight Ratio ◽  
High Strength ◽  
Fiber Composites ◽  
High Impact Energy ◽  
Compression Moulding ◽  
Energy Demands ◽  
Green Materials ◽  
Hardness Tests

Industries call for green materials which will supervene upon the ancient materials through virtue of their high strength to weight ratio. Composite substances of herbal behavior satisfy the above desires with a aggregate of one or more materials. In this paper, the combination of herbal fibers mainly Abaca and Kenaf are taken as reinforcement and CFRP as matrix medium. Here the Composite is laminated using Compression Moulding Method. Impact and Hardness Tests has been done to determine the mechanical behavior of the composite laminate. It has been concluded that the Category II suggests better mechanical property when compared to the other two categories and observed Impact energy of 6 Joule and Hardness of 108 HRB respectively. Scanning Electron Microscope was done to observe the internal mechanical behaviour of the composite laminate. From SEM it is noted that minimum propagation of crack and voids present in the composite laminate. It has been observed that this hybrid composite laminate can be implemented wherever high impact energy demands.

Precipitation in Al-Li-Zr alloys

1992 ◽  
Vol 50 (1) ◽  
pp. 186-187
Author(s):  
D.M. Vanderwalker
Keyword(s):  
Fracture Toughness ◽  
Precipitation Hardening ◽  
Weight Ratio ◽  
High Strength ◽  
Transmission Electron ◽  
Water Quench ◽  
Aluminum Lithium ◽  
Aluminum Lithium Alloys ◽  
Lithium Alloys ◽  
Zr Alloys

Aluminum-lithium alloys have a low density and high strength to weight ratio. They are being developed for the aerospace industry.The high strength of Al-Li can be attributed to precipitation hardening. Unfortunately when aged, Al-Li aquires a low ductility and fracture toughness. The precipitate in Al-Li is part of a sequence SSSS → Al3Li → AlLi A description of the phases may be found in reference 1 . This paper is primarily concerned with the Al3Li phase. The addition of Zr to Al-Li is being explored to find the optimum in properties. Zirconium improves fracture toughness and inhibits recrystallization. This study is a comparision between two Al-Li-Zr alloys differing in Zr concentration.Al-2.99Li-0.17Zr(alloy A) and Al-2.99Li-0.67Zr (alloy B) were solutionized for one hour at 500oc followed by a water quench. The specimens were then aged at 150°C for 16 or 40 hours. The foils were punched into 3mm discs. The specimens were electropolished with a 1/3 nitric acid 2/3 methanol solution. The transmission electron microscopy was conducted on the JEM 200CX microscope.

Microstructure of an extruded rapidly solidified Al-8Fe-2Mo alloy

1986 ◽  
Vol 44 ◽  
pp. 548-549
Author(s):  
W. T. Donlon ◽  
J. E. Allison ◽  
S. Shinozaki
Keyword(s):  
Electron Microscopy ◽  
Automotive Industry ◽  
Fuel Economy ◽  
High Strength ◽  
Al Alloys ◽  
Light Weight ◽  
Thin Sections ◽  
Strength And Durability ◽  
Rapidly Solidified ◽  
Whitney Aircraft

Light weight materials which possess high strength and durability are being utilized by the automotive industry to increase fuel economy. Rapidly solidified (RS) Al alloys are currently being extensively studied for this purpose. In this investigation the microstructure of an extruded Al-8Fe-2Mo alloy, produced by Pratt & Whitney Aircraft, Goverment Products Div. was examined in a JE0L 2000FX AEM. Both electropolished thin sections, and extraction replicas were examined to characterize this material. The consolidation procedure for producing this material included a 9:1 extrusion at 340°C followed by a 16:1 extrusion at 400°C, utilizing RS powders which have also been characterized utilizing electron microscopy.

TUNGUM ALLOY

Alloy Digest ◽  
2012 ◽  
Vol 61 (5) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Weight Ratio ◽  
High Strength ◽  
Fatigue Properties ◽  
Excellent Corrosion Resistance

Abstract Tungum alloy combines an unusually high strength-to-weight ratio, with ductility, excellent corrosion resistance, and good fatigue properties. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming. Filing Code: Cu-806. Producer or source: Tungum Ltd.

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