IRJET- Design and Analysis of the Piston using Three Materials

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 06 Issue: 08 | Aug 2019 www.irjet.net p-ISSN: 2395-0072
© 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 476
DESIGN AND ANALYSIS OF THE PISTON USING THREE MATERIALS
Goriparthi S N Phanindra kumar1, Murari indrani2, Nagababu Gungati3
1P G Scholar, SSCET, Lankapalli, Krishna dist, AP.
2Asst prof, SSCET, Lankapalli, Krishna dist, AP.
3HOD of mechanical dept, Diviseema polytechnic, Avanigadda.
---------------------------------------------------------------------***----------------------------------------------------------------------
Abstract - Piston plays a main role in energy conversation.
Failure of piston due to various thermal and mechanical
stresses. The working condition of the piston is so worst in
comparison of other parts of the internal combustion engine.
The main objective of this work is to investigate and analyze
the stress distribution of piston. Design and analysis of an IC
engine piston using three different materials that are used in
this project. taking pulsar 220cc piston dimensions different
materials (grey castiron, aluminum alloy, AL-NI) have been
selected for structural and thermal analysis of piston. Created
pressure on piston head 13.65Mpa on these three materials,
and applied temperature 400 degress on piston head finally
find out the which one is the suitable material on piston in
these three materials. Design of the piston is carried out using
Solidworks software, static and thermal analysis is performed
using Finite Element Analysis (FEA).
Key Words: Piston, Aluminium alloy, Nickel,
1. INTRODUCTION
An internal combustion engine is defined as an engine in
which the chemical energy of the fuel is released inside the
engine and used directly for mechanical work, asopposedto
an external combustion engine in which a separate
combustor is used to burn the fuel. The internal combustion
engine was conceived and developed in the late 1800s.
Internal combustion engines can deliver power in the range
from 0.01 kW to 20x103 kW, depending on their
displacement. The complete inthemarketplacewith electric
motors, gas turbines and steam engines. The major
applications are in the vehicle (automobile and truck),
railroad, marine, aircraft,homeuseandstationaryareas.The
vast majority of internal combustion engines are produced
for vehicular applications, requiring a power output on the
order of 102 kW.
1.1 MATERIAL FOR PISTONS
The most commonly used materials for pistons of I.C.
engines are cast iron, aluminium alloy (cast aluminium,
forged aluminium), cast steel and forged steel.
Here we are using grey cast iron, aluminium alloy and new
material aluminium Nickel carbidegraphite(Al-NiGraphite)
1.2 Preparation of Al-Ni graphite’s Specimen
Stir Casting technique is a method of producing composite
materials, in which a scattered stage (fired particles, short
filaments) is blended with a liquid metal by method for
mechanical mixing with the help of stirrer. The liquid state
composite material is cast by permanentdiecastingmethod.
In this Stir casting technique has been used to prepare the
work-piece samples of Al-Ni-Graphite hybrid metal matrix
Composite material and accomplish the required properties
of that composite material. The vortex stir casting is best
approach to create an accurate mixing of the Nickel carbide
and graphite material in the matrix, the aluminium material
was stacked in a crucible and it was placed into a resistance
furnace at various temperature levels
Preparation of Al-Ni-graphite’s Specimen
Nickel carbide and Graphite powder preheated before
mixing of aluminium metal melt, the four blades Stirrer was
designed in order to produce the sufficient homogenous
particle circulation throughout the matrix material. After
getting the homogeneous mixing of Nickel carbide, graphite
powder and aluminium composite moltenmetal waspoured
into the permanent dies. In casting processdiearefilled with
a lubricating material to reducing sticking of the casting
metal to the die. The vent holes areprovidedwiththecasting
for escaping hot gas into the out. The casting was removed
from the die; the casting will be too hot, so that casting must
be cooled in order to reduce the oxidation process. The
casting material is cooled by the water quenching process.
This process contains the rapid cooling of the casting.
Material by treating with the water. The casting is dipped in
to a water to reduce the heat and to get a solid form of the
composite specimen.

2. PROPERTIES OF MATERIALS
2.1. GREY CAST IRON:
Resistance to Deformation:
Grey Cast Iron is highly resistant to deformation and
provides a rigid frame. However, if there is some
construction relatedproblem,thenevenGreyCastIron made
structure can breakdown
Resistance to Oxidation:
Grey Cast Iron is highly resistant to rust, which is formed
by the reaction of oxygen and Iron. It is a perfect solution
to avoid the problem of corrosion.
High Compressive Strength:
This strength is defined by the endurance of any metal or
alloy to withstand its compressive forces. Grey Cast Iron has
a high compressive strength and that’s why, it is widelyused
in posts and columns of buildings. In addition, their
compressive strength can be as high as that of some Mild
Steels.
Tensile Strength:
There are different varieties of Grey Cast Iron and their
tensile strength varies accordingly. Some varieties show the
tensile strength of 5 tons per square inch, someshow19,but
on an average their strength is 7 tons per square inch.
2.2. Aluminum alloy
Corrosion Resistance:
When exposed to air, a layer of aluminium oxide forms
almost instantaneously on the surface of aluminium. This
layer has excellent resistance to corrosion
Thermal Conductivity :
The thermal conductivity of aluminium is about three times
greater than that of steel. This makes aluminium an
important material for both coolingandheatingapplications
such as heat-exchangers.
Electrical Conductivity:
Along with copper, aluminium has an electrical conductivity
high enough for use as an electrical conductor. Although the
conductivity of the commonly used conducting alloy (1350)
is only around 62% of annealed copper, it is only one third
the weight and can therefore conduct twice as much
electricity when compared with copper of the same weight.
Reflectivity of Aluminium:
From UV to infra-red, aluminium is an excellent reflector of
radiant energy. Visible light reflectivity of around 80%
means it is widely used in light fixtures. The sameproperties
of reflectivity makes aluminium ideal as an insulating
material to protect against the sun’s rays in summer, while
insulating against heat loss in winter.
2.3. Al-Ni Graphite
 High resistance to corrosion in water or air
 Low deformation
 To resist high pressures and temperatures
3. ANALYTICAL CALCULATION FOR PISTON
Analytical calculations are done for cast iron piston. For
doing analytical calculation material properties and
dimensional information should be known and so all the
parameters consider for design of piston are calculated by
using one analytical problem. Design Considerations for a
Piston In designing a piston for an engine, the following
points should be taken into consideration: It should have
enormous strength to withstand the high pressure.
 It should have minimum weight to withstand the
inertia forces.
 It should form effective oil sealing in the cylinder.
 It should provide sufficient bearing area to prevent
undue wear.
 It should have high speed reciprocation without
noise.
 It should be of sufficient rigid construction to
withstand thermal and mechanical distortions.
 It should have sufficient support for the piston pin.
 Procedure for Piston Design
4. METHODOLOGY:
 Analytical design of piston using specification of
Bajaj Pulsar 220CC.
 Creation of 3D models of piston using solid works
and then imported in ANSYS 14.5
 Mesh of 3D models using ANSYS 14.5
 Analysis of pistons using static analysis-thermal
method.
 Comparative performance of grey cast iron -
aluminium alloy piston and composite material
under static and thermal analysis method.
 Select the best one aluminium alloy and composite
material al-Ni

5. MODELING OF PISTON
Sketch with dimensions of a piston:
6. ANSYS ANALYSIS ON PISTON:
The static and thermal analysis for the piston was done by
finite elements method using ANSYS software. For ANSYS
simulation the solidworks geometry is separated into
elements. In this elements are interlinkedtooneanother ata
point called as Node. In present examination work we have
used FEA for the Thermal and Structural analysis of piston.
The solidworks software is used to prepare the piston. After
completing solidworks modeling, the model is saved in IGES
file then IGES file is imported to ANSYS software for the
finite element analysis.
6.1 GREY CAST IRON
For the pressure load applied is 13.65MPa
Gray Cast Iron
Gray Cast Iron > Constants
Density 7.2e-009 tonne mm^-3
Coefficient of Thermal
Expansion
1.1e-005 C^-1
Specific Heat
4.47e+008 mJ tonne^-1
C^-1
Thermal Conductivity
5.2e-002 W mm^-1 C^-
1
Resistivity 9.6e-005 ohm mm
Gray Cast Iron > Compressive Ultimate& Tensile Ultimate
Strength
Compressive Ultimate
Strength MPa
Tensile Ultimate
Strength MPa
820 240
Gray Cast Iron > Isotropic Elasticity
Maximum Stress:
Total Deformation:
Maximum strain:

Maximum shear stress:
Similarly, the max stress, total deformation, max strain,
and max shear stress for the other two materials such as
ALUMINIUM ALLOY and AL-NI GRAPHITE are as follows.
6.2 ALUMINIUM ALLOY (AL 2024-T361)
For Aluminium Alloy at 13.65Mpa Pressure
Material Data
Aluminium Alloy > Constants
Coefficient of Thermal
Expansion
2.3e-005 C^-1
Specific Heat
8.75e+008 mJ tonne^-1
C^-1
Aluminium Alloy > Compressive Yield & Tensile Yield
Strength
Compressive Yield Strength
MPa
Tensile Yield
Strength
280 280
Aluminium Alloy > Isotropic Elasticity
Temperature
C
Young's
Modulus
MPa
Poisson's
Ratio
Bulk
Modulus
MPa
Shear
Modulus
MPa
400 71000 0.33 69608 26692
6.3 Al-Ni-GRAPHITE
For Aluminium Nickel Carbide Graphite (Al-Ni Graphite) at
13.65 pressure
Material Data
al-Ni-graphite > Constants
al-Ni-graphite > Isotropic Elasticity
Temperature
C
Young's
Modulus
MPa
Poisson's
Ratio
Bulk
Modulus
MPa
Shear
Modulus
MPa
400 74000 0.34 77083 27612
Al-Ni-graphite > Tensile Yield Strength
RESULTS
Comparision of results for grey cast iron, aluminium alloy,
al-Ni-graphite
Material Maximu
m stress
Total
deformati
on
Maximum
strain
Maximu
m shear
stress
Grey cast
iron
37.999 0.034804 0.000665
03
18.363
Aluminiu
m alloy
35.905 0.036491 0.000692
21
18.476
Al-Ni-
graphite
35.499 0.024202 0.000468
95
20.15
From the above results shown in the table it found that
 Static structural analysis is carried out on piston at
13.65MPa pressure with three different materials,
such as grey cast iron, aluminium alloy and al-Ni
graphite in ansys workbench.
 Maximumstress,deformation, maximumstrainand
maximum shear stress are noted and tabulated
 From the tables it is concluded that the aluminium
Nickel carbide graphite (Al-NiGraphite)isshowing
efficient resultsTemperature
C
Young's
Modulus
MPa
Poisson's
Ratio
Bulk
Modulus
MPa
Shear
Modulus
MPa
400 1.1e+005 0.28 83333 42969
Tensile Yield Strength MPa
193.38

7. THERMAL ANALYSIS ON PISTON:
Maximum temperature given at piston crown 400deg
Minimum temperature given at bottom face 30deg
Grey Cast Iron:
Temperature distribution:
Heat flux
Similarly, the heat flux and temperature distribution for
the other two materials such as ALUMINIUM ALLOY and
AL-NI GRAPHITE are shown in the following results.
RESULTS:
Comparision of results for grey cast iron, aluminium alloy,
al-Ni-graphite
Material Heat flux
Grey cast iron 0.55471 W/mm
Aluminium alloy 1.8145 W/mm
Al-Ni-graphite 1.9201 W/mm
From the above results shown in the table it found that
 Steady state thermal analysis is carried out at
maximum temperature 400deg and minimum
temperature 30deg for the above three various
materials.
 Temperature distribution and heat flux are noted
for three different materials and tabulated.
efficient results
CONCLUSIONS:
 Modeling and analysis of piston is done
 Modeling of piston is done in solid works 2016
design software by using various commands
 The solidworks part file is converted into IGS file
and imported to ansys workbench.
 First Static structural analysis is carried out on
piston at 13.65MPa pressure with three different
materials, such as grey cast iron, aluminium alloy
and al-Ni graphite in ansys workbench.
 Maximumstress,deformation, maximumstrainand
maximum shear stress are noted and tabulated
 Then steady state thermal analysis is carried out at
maximum temperature 400deg and minimum
temperature 30deg for the above three various
materials.
 Temperature distribution and heat flux are noted
for three different materials and tabulated.
efficient results
 Hence Al-Ni-Graphite is preferableamong the three
applied materials.
REFERENCES
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analysis and optimization of piston using cae tools
proceeding of 20th IRF international conference
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