Papers Posted on - Sep / 2016


Author Name M. Indra Reddy
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DOI http://dx.doi.org/10.11127/ijammc2016.09.01
Paper Title The Effect of Copper and Aluminium Foil on Mechanical Properties of Natural Fiber Reinforced Plastics
Abstract
An experimental study has been carried out to investigate the tensile and flexural characterization of polymer hybrid composites made by reinforcing Jute, Pineapple leaf fiber, Copper foil and Aluminium foil into a epoxy resin. The weight fraction of composites was maintained at 40% fiber, 45% resin and l5% foil and the variation of mechanical properties such as tensile and flexural properties in each case were studied. The tensile strength was maximum in jute and pineapple composite. Further, the Flexural strength of the composite also maximum in jute and pineapple composite.
Keywords
Natural fiber, Pineapple leaf fiber (PALF), Jute fiber, Copper foil, Aluminium foil
Author Name Jyothi P N
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DOI http://dx.doi.org/10.11127/ijammc2016.09.02
Paper Title Influence of Aluminium on melt flow behaviour of ZA alloys processed through Centrifugal Casting Process
Abstract
ZA alloys are known as bearing materials due to its excellent tribological properties. Many researchers have worked on evaluating mechanical, wear, bearing, damping properties of ZA alloys processed through various casting techniques. From previous literature it is known that increase in the aluminium content increases mechanical properties of ZA alloys and also increases fluidity of the melt in continuous casting process, In the present work an attempt is made to study the effect on fluidity by increasing aluminum content in zinc alloys processed through centrifugal casting at rotational speed of 600rpm. ZA 8, ZA 12 and ZA 27 alloys were taken for the study to understand the effect of aluminum in ZA alloys during centrifugal casting process. Uniform cast tube was formed for ZA 8 alloy and non-uniform cast tubes were formed for other two alloys due to the increase in aluminum content which probably restricts fluid motion. The detailed discussion on fluid flow, microstructure and hardness of the cast tube were discussed finally.
Keywords
ZA alloys; melt flow; Horizontal centrifugal casting process.
Author Name K. Krishnakanth
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DOI http://dx.doi.org/10.11127/ijammc2016.09.03
Paper Title Experimental Characterization Of Banana And Americana Hybrid Composite
Abstract
Now a day the work on the natural fiber based composites has been increased due to the factors such as depleting resources like petroleum, crude oil from which the synthetic fibers are produced, increasing environmental concern, increased global warming…etc. moreover some of the natural fibers exhibit high mechanical properties such as high tensile modulus in comparison with their synthetic fiber counter parts. In this study we have prepared and experimentally characterize the mechanical properties of the banana/ Americana hybridized composite material. Two different fiber weights were considered to also study the influence of the fiber weight on the mechanical properties of the hybrid composite. The properties such as tensile modulus, tensile strength, flexural modulus and strength, impact strength were found out. It was found that the mechanical properties of the hybrid composite were increasing with the increase in the fiber weight.
Keywords
fiber baced composites and bananna/american hybrid composite
Author Name Mir Irfan Ul Haq
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DOI http://dx.doi.org/10.11127/ijammc2016.09.04
Paper Title Role of Computer Aided Engineering in Mitigation of Automotive Chassis Failures
Abstract
With the advent of high speed computers and analysis softwares, Computer Aided Engineering (CAE) is playing a vital role in the new product development processes. In an attempt to shorten the new product development life time and to withstand the tremendous competitive market scenario vis a vis quality, global automobile industry uses various physical and virtual testing methods. The various virtual tests being carried out for an automobile chassis structure so as to analyze it statically as well as dynamically due to various loads generated because of rough road conditions, engine excitation, sudden acceleration, deceleration; cornering, gross weight and net weight. The tests include the vertical bending test, lateral bending test, 3G bending test, the torsional test, modal analysis, accelerated durability test, tow hook test and engine and transmission mount test. The paper reviews the details of these tests being widely used by automotive industry that usually includes developing a CAD model of the chassis and then subjecting it to different loads depending on the type of test, virtually. Acceptance criteria for all the parameters obtained in the tests, viz. torsional stiffness, bending stiffness, yield strength and modal frequency etc. are deduced from data collected via experimenting and reverse engineering.
Keywords
Computer Aided Engineering, Virtual Testing Methods, Chassis
Author Name Ajay Kumar Choubey
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DOI http://dx.doi.org/10.11127/ijammc2016.09.05
Paper Title Analysis of Connecting Rod by the Finite Elements Method
Abstract
In this paper, finite element analysis of single cylinder four stroke petrol engines is taken as a case study. Connecting rod is high volume production from automobile side; it is subjected to more Stress than other engine components. The main aim of this paper is to determine the von-Mises stresses, shear stresses, total deformation. In this paper, only the static FEA of the connecting rod has been performed by the use of the software. This work can be extended to study the effect of loads on the connecting rod under dynamic conditions. A lot has been done and still a lot has to be done in this field. Structural systems of connecting rod can be easily analyzed using Finite Element techniques. So firstly a proper Finite Element Model is developed using FEM software ANSYS 14.0. The static loads acting on the connecting rods, after that the work is carried out for safe design. In this study two different size connecting rod uses for static analysis.
Keywords
Connecting rod, FEA, stress, static analysis etc
Author Name Shashi Prakash Dwivedi
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DOI http://dx.doi.org/10.11127/ijammc2016.09.06
Paper Title Tensile and Fatigue Fracture Behaviour of SiC Reinforced Metal Matrix Composite
Abstract
This study presents the mechanical behavior of newly developed metal matrix composites (MMCs) in terms of tensile and fatigue properties. In the investigation, A6061/SiC metal matrix composite with different weight percent of reinforcements (2.5%, 5%,7.5%, 10%, 12.5%) were made-up by stir casting. Microstructural analysis, tensile test and fatigue tests were carried out in order to make out microstructure and mechanical properties of the composites. The outcomes of microstructural study exposed uniform distribution and low porosity for 7.5 % SiC. Minimum porosity was observed for the 2.5% of reinforcement. The mechanical results showed that the addition of SiC particles led to the improvement in tensile strength, fatigue strength upto 7.5 % SiC.In the fracture image of tensile and fatigue sample at 7.5% of SiC, grain structure was much better as compared to other selected samples.
Keywords
Tensile fracture, fatigue fracture, microstructural analysis, grain structure, MMCs
Author Name C. Nikhare
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DOI http://dx.doi.org/10.11127/ijammc2016.09.07
Paper Title Two dimensional complex shape analyses during low pressure tube hydroforming
Abstract
Hollow products are increasingly employed for automotive parts to reduce vehicle weight. Hydroforming technology is widely used for forming complicated or complex components from tube blanks. Complex shape can be easily formed with the help of high pressure. However high pressure equipments and high tonnage press are the resistance to product cost benefits. Whereas low pressure tube hydroforming can also achieve some of the complex shape with minimum pressure requirements and lower die closing force. This work represents the forming of two dimensional different complex shapes by using the low pressure tube hydroforming. The die filling conditions were critically studied. It is determined that for the complex shape with low pressure tube hydroforming slightly lesser perimeter length is required which allows for weight reduction. Stress and thickness distribution of the part during tube crushing were analysed.
Keywords
Advanced High Strength Steels; Hollow products; Tube hydroforming; Complex shapes; Low pressure.
Author Name M Saran Theja
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DOI http://dx.doi.org/10.11127/ijammc2016.09.08
Paper Title Characterization of Natural Fibres in Composites
Abstract
After World War II synthetic fibres are used mostly than natural fibres. Now-a-days due to increase of oil prices and environmental considerations. This is an interest on natural fibres use within the textile, building, plastic, and automotive industries for economic development and independence versus imported material. This experimental study aims fabrication and characterization of natural fibres in composite materials. The samples are several Natural Composites and those samples are pure epoxy mat, coconut coir mat, palm fibre mat, combination of coconut coir and palm fibre mat were manufactured by using hand layup method. The weight fraction of fiber and the matrix was kept 40% - 60%.Testing is done for treated and the untreated fibresthus properties will be studied and compared with previous mechanical properties. The tests were flexural test, tensile test
Keywords
Composites, fiber-reinforced, isotropic, matrix layer, fiber layer, coconut coir, fabricated sandwich panel, honeycomb, light weight to strength.
Author Name Anubhav Tewari
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DOI http://dx.doi.org/10.11127/ijammc2016.09.09
Paper Title Analysis of a stress concentration factor for a plate with varying loading conditions- finite element approach
Abstract
The current work focuses on analysis of four cases- horizontal hole pair in uniaxial loading, Horizontal hole pair in biaxial loading, Vertical hole pair in uniaxial loading and vertical hole pair in biaxial loading. Readings obtained are characterized by three methods; Analysis by FEM, analytically by theoretical calculations and experimental by result obtained as per standard data handbook. Results clearly indicate that finite element analysis has shown profound abilities to determine the stress concentration factor as compared to the analytical and experimental counterparts. This clearly indicates that finite element analysis can be used as a significant tool to understand the behavior of plates subjected to varied loading conditions.
Keywords
finite element analysis, stress concentration factor, Ansys, uniaxial and biaxial loading, loading conditions.
Author Name Ani Daniel
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DOI http://dx.doi.org/10.11127/ijammc2016.09.10
Paper Title Analysis Of Energy Consumption During Carbon Dioxide Laser Cutting
Abstract
The objective of this paper is to analyze the influence of gas during carbon dioxide laser cutting process . A variety of cutting conditions like variation of pressure and velocities were applied to steel to analyze the effect of these mentioned parameters. It is observed through experiments that the most effective cut was at 1 bar pressure with 0.5m/min velocity by measuring the kerf width heat affected zone and power consumption..
Keywords
Carbon dioxide laser cutting, HAZ, Kerf width, laser cutting, Steel, Energy balance equation, Power consumption
Author Name Abrar Ahamed
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DOI http://dx.doi.org/10.11127/ijammc.2016.09.12
Paper Title Corrosion behaviour of Cenosphere Aluminium 6061 Composites
Abstract
One of the alarming environmental problems that require an immediate solution is associated with an infinitely increasing amount of ash produced during the burning of coal, oil, and wood and other biomaterials. Among these, fly ash utilization continues to be an important area of national concern due to India’s dependence on thermal power generation for its energy supply. Alloy 6061 is one of the most widely used alloys in the 6000 series. This standard structural alloy, one of the most versatile of the heat-treatable alloys, is popular for medium to high strength requirements and has good toughness characteristics. Alloy 6061 has excellent corrosion resistance to atmospheric conditions and good corrosion resistance to seawater. This paper deals with the manufacture of cenosphere aluminum composites with varied proportions of the reinforcement phase, fly ash cenospheres – 6061 aluminium composite with features in terms of corrosion resistance have been developed. Immersion corrosion studies have been carried out with a thorough correlation between the corroded surfaces and the results indicated. The corrosion studies show that there is an increase in the corrosion pitting of the cenosphere aluminium composite.
Keywords
Aluminium 6061 composites, fly ash cenospheres, corrosion resistance, immersion corrosion.
Author Name Venkatesh Kataru
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DOI http://dx.doi.org/10.11127/ijammc.2016.09.11
Paper Title Evaluation Of Corrosion, Hardness For Stainless Steel – 304 In Varied Corrosive Environments
Abstract
Austenitic stainless steels are materials commonly used in off shore applications owing to their superior quality in terms of corrosion resistance. However it is also cited that there have been evidences in the past with respect to pitting and crevice corrosion under conditions that were not expected. The current work focusses on evaluation of immersion corrosion studies on stainless steels in varied corrosion environments like water, sea water and dilute hydrochloric acids. The immersion duration was for a period of 7 days for all the three diluents. Hardness studies have also been reported in the paper. The result shows that there is a decrease in the corrosion resistance of stainless steel samples with respect to acid corrosion as compared to fresh water and sea water corrosion tests. Hardness of the samples have also shown a reduction in the values for acid corrosion when compared to the counterparts.
Keywords
Corrosion, Acid corrosion studies, SS304, hardness, immersion corrosion tests.
Author Name Yash Anchan
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DOI http://dx.doi.org/10.11127/ijammc2016.09.13
Paper Title Residual stress evaluation of mild steel subjected to varied processing Conditions in milling operation
Abstract
Residual stresses are generated upon equilibrium of material, after plastic deformation that is caused by applied mechanical loads, thermal loads or phase changes. Mechanical and thermal processes applied to a component during service may also alter its residual stress state. The current work focusses on evaluation of residual stresses when mild steel components are subjected to varied cutting conditions on a milling machine. Varied cutting conditions like depth of cut, coolant conditions, speed and feed are potential machining parameters which have been performed to study the effect of these on residual stresses. Hardness studies before and after machining have also been tabulated. It is seen that the hardness of the materials have not profound change with varying cutting conditions. It is also seen that the residual stresses have shown significant changes with varied cutting conditions of machining on a milling machine.
Keywords
machining parameters, milling, residual stress, x ray diffraction, hardness
Author Name Abrar Ahamed
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DOI http://dx.doi.org/10.11127/ijammc2016.09.14
Paper Title Study on Slurry Erosive Wear Behaviour of Al 6061 based Composites
Abstract
In the present investigation, Titanium di oxide (TiO2) reinforced Al 6061 composites were fabricated using liquid metallurgy route. The performance of Al 6061 based Titanium di oxide composites in slurry erosive environment was examined. The slurry consists of equiaxed sand particles of size approximately 600 µm in 3.5%NaCl solution. The slurry erosive wear studies on Al 6061 alloy and Al 6061-TiO2 composites were carried out at different sand concentration, varying rotational speed and at different time duration of exposure. It was observed that slurry erosive weight loss decreased with increase in TiO2 reinforcement. However, there was increase in slurry erosive weight loss with increase in slurry concentration, rotational speed and time duration of exposure.
Keywords
Aluminium 6061 composites, TiO2, slurry erosive wear.