SOlid mechanics experiments

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Mechanical Engineering Indian Institute of Technology Bombay

ME 218 Solid Mechanics Lab Spring 2016

Lab Meets: Tuesday (S1) and Friday (S2) 2:00 5:00 PM in Rooms ME 105 and ME 108 Instructor: Prof. Krishna JonnalagaddaLab Technical Staff: Mr. Shanideo Jadhav (JTS), Ankit Vekariya (RA)Teaching Assistants: Nipal Deka, Salah Ahmad Sabri, Gujre Vinay Sanjay, Satyabrata Dhala, Vyas VishalNiranjankumar, Tanksale Abhijit Anandrao, Memane Nilesh Maruti, Dalal Parth Pragnesh, Sarat Chandra

Akella, Supe Akash Shrikrishna

Assessment Scheme:

Lab Report: 30 %Viva Voce: 30%Final Exam (Written): 40%

Instructions:

1. The lab will start at exactly 2 PM. You should be at your respective experimental setup on time. If youcome late there will be attendance penalty (2 x late = 1 absent).

2. Attendance policy:a. If you are absent for any reason not approved by the institute, you will note receive attendance.b. Make up will be allowed for genuine cases, such as, medical reasons (only IITB Hospital certificate will

be accepted). It is the duty of the student to report medical or other absense as soon as possible and

arrange for a makeup lab. No make up after one weeks of recovering from illness/other reasons.3. Safety:

a. The ME department policy requies wearing shoes compulsory to the lab. No shoes = no lab.b. Whenever safety gear is provided by the TA/lab staff to wear, you should oblige for your own safety.c. It is very important that you follow the instructions of the TA/Instructor/Lab Staff.

4. The lab manual should be with you while conducting the experiment and also some A4 sheets to

note down the readings as well as writing down your observations.

5. Prelab report:a. Every student is required to bring a 1 page (A4 size, one side) hand written writeup on the experiment

to be conducted that day in the lab This they should submit to the TA and it will be part of your report


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to be conducted that day in the lab This they should submit to the TA and it will be part of your report


ME 218: EXPERIMENTS FOR SOLID MECHANICS LAB

Sr. No. Title of the experiments

E1

a] Uniaxial Compression Experiment

b] Rockwell Hardness Measurement of Metals

E2 Optical Strain Measurement Using Digital Image Correlation

E3

a] Determination of Stress Concentration Factor Using Photoelasticity

b] Rotating Beam Bending Fatigue Experiment

E4

a] Uniaxial Tensile Test

b] Charpy Impact Experiment

E5

a] Strains in a Ring under Combined Bending and Extension

b] Large Deflection of a Cantilever Beam

E6a] Experimental Verification of Reciprocal and Superposition Theoremb] Torsion of a Circular Rod


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Experiment 1(a) Uniaxial Compression Experiment

Objective: To perform compression test and determine,

(a) The machine compliance(b) The compressive flow strength at ~30% strain of aluminum sample

(c) The Youngs modulus in compression and the complete true stress vs. true strain curve

Equipment and Tools:-

The Universal Testing Machine with compression platens, grease, Vernier Caliper, Scale, aluminum

and steel samples.

Theory:Several machine and structural components such as columns and struts are subjected to compressive

load in applications. Depending on the material the properties in compression could be different from those

in tension, which is referred to as Baushinger effect. For most isotropic materials, tension, compression and

torsion comprise the most important experiments to extract the constitutive response, i.e., stress vs. strain

relationship. Also, failure in compression is often different from that seen in tension. Failure in metals under

compression usually comprises of buckling, shear banding and diametric cracking (in relative less ductile

materials). Compression experiments are also preferred to understand the stress vs. strain response of

isotropic materials due to small specimen size requirement and easy of preparation.

In this experiment, you will be measuring the stress vs. strain response of a ductile aluminum alloy

in uniaxial compression. In the absence of a compression extensometer, you will be conducting two

compression experiments to calculate the strain in aluminum sample. The first experiments will be on a steel

samples with very high yield strength and of known elastic modulus, loaded below the proportional limit.

From this experiments, you will extract the UTM compliance by plotting displacement over force for the

machine assuming that the specimen is a linear elastic spring, whose deformation can be calculated form the

elastic modulus and specimen geometry. The second experiment will be on an aluminum sample of unknown

elastic modulus, for which you will extract the force vs. displacement curve. Then, construct the true stress

vs true strain curve for aluminum using the compliance data obtained from the experiment on steel


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Experiment 1(b) Rockwell Hardness Measurement of Metals

Objective: The aim of this experiment is to determine the Rockwell hardness numbers of metals.

Equipment and Tools: Rockwell hardness testing machine, indenters, flat and polished specimens.

Theory: Of the many definitions of hardness, for metals the most appropriate one would be resistance to

permanent deformation. It can be determined either statistically or dynamically. Static hardness test can be

further classified as follows:

a) Hardness as the force per unit area, which is used in Brinell and Vickers indentation experiments.

!" In the Rockwell hardness experiment, the hardness of a material is calculated from the depth of

penetration of the indenter into the material.

Significant information can be obtained from the hardness number of a specimen. Uniform hardness

numbers are nearly always a sufficient guarantee of the uniform quality of the finished products. In this test

the depth of the penetration of the given indenter under a specified load is measured. The type of indenter

and load used depend upon the material to be tested. Rockwell hardenss has many scales depending on the

applied load and the type of indenter. Scale B (denoted HRB) is used for the materials having hardness

number up to that of mild steel. In HRB scale, the indenter is a hardened steel ball of 1/ 16 dia. An initial

load of 10 kg is applied on the ball. An additional load of 90 kg is then applied (major load). Similary, HRC

scale is used for alloy steels, which are much harder to penetrate. In this case, the indenter is a diamond cone

of 120 degree included angle and a 150 kg major load is applied.

Procedure:

1. Keep the specimen on the machine platform. Ensure that the surface of indentation is parallel to the

platform.

2. Turn the table upward so that distance between the indenter and specimen is less than 8mm.

3. Select the HRB/HRC scale with the help of touch screen display buttons.

4 Press the start b tton it ill a tomaticall go do n into the specimen to make the impression and ill


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Experiment 2 Optical Strain Measurement Using Digital Image Correlation

Objective: -Non-contact full-field strain measurement in tensile metal samples using image correlation.

Equipment and tools: Digital camera, appropriate optical lens, computer, Al sheet specimen, pattern

generating apparatus, Vernier calipers, tripod.

Introduction: - Experimental techniques in solid mechanics depend on surface displacement field

measurements. Conventional strain measurement techniques involve either a bonded foil strain gage or an

extensometer. These methods give local average strain measurement over an area or a given gauge length,

respectively. To measure full-field stain over a large area on a surface with/without gradients several non-

contact methods (direct and indirect) are used, such as, photoelasticity, Moire interferometry, speckle

interferometry, etc. Digital image correlation is a relatively new method in solid mechanics for strain

measurement with is easy to setup and

Digital Image Correlation (DIC) is an image based numerical measuring technique, which offers the

possibility of determining complex displacement and deformation fields on the surface of objects under

various loading conditions. It is a popular method, especially in micro- and nano-scale mechanical testing

applications due to its relative ease of implementation and use. The main advantage is the technique is suited

to any kind of image (optical, electron microscope, etc.) as long as the deformation causes on contrast

change in the digital pixels of the image before and after deformation.


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Procedure:-

1) Specimen Preparation: - For good results, it is essential to get a good speckle pattern. The speckle patterncan be naturally occurring or can be applied. It can be applied with white and black paint. First, paint the

surface with a thin layer of white paint (it could be spray paint) and then apply a black mist of paint

(spray paint) to create the black speckles.

2) Image Capture: - To take the pictures during the deformation period, the specimen needs to be prepared

to be subject to the mechanical test. After the sample is prepared and the universal testing machine isconfigured, select an accessible position for the digital camera and adjust the focal length to fix and

acquire a clear image. Set the aperture range of the camera lens with the lowest f-number as possible to

let the entrance of the maximum amount of light. The illumination has to be appropriate. The sample

must be illuminated by a standard white light source. If ambient illumination is not sufficient, additional

lighting may be needed. Before starting the test, a picture is taken for reference (non-deformed image).

While the specimen is subject to external loads, consecutive pictures are taken (deformed images).

3) These images are then given as input to the code or software from where displacement or strains can beobtained. Code will be explained to you by the TA during the lab.

) lib i h lib i i i l h d i h di l i i l d h b

Fig-3 Schematic illustration of a reference square subset before

deformation and a target (or deformed) subset after deformationFig-2 Speckle Pattern


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Experiment 3a Determination of Stress Concentration Factor Using Photoelasticity

Objective: To find the stress concentration factor using Photoelasticity technique

Equipment and Tools:Epoxy resin, photoelasticity setup

Fig. E3.1: Schematic of plane polariscope

Theory: Photoelasticity is an experimental technique for stress measurement and is particularly useful when

the geometry is irregular or it has a discontinuity. This method is based on the discovery of David Brewster

that when a piece of glass is stressed and viewed by a polarized light transmitted through it, a brilliant pattern

due to stress is seen. These color patterns are used to infer measurement of stresses in engineering structures.

Birefringence is a property by virtue of which a ray of light passing through a birefringent materialexperiences two refractive indices. Many transparent materials like polycarbonates exhibit birefringence on

application of stress and this effect is termed as photoelastic effect. When monochromatic light (L) is

incident on the polarizer (P), only the component of light with an electric vector parallel to the axis of the

polariser will be allowed to pass through. When the plane polarised light arrives at the specimen (M) it is

refracted and, if the material of the specimen is stressed, it is split into two separate waves, one vibrating

parallel to one permitted vibration direction and the other wave parallel to the other (orthogonal) permitted

vibration direction. The velocities of these waves will be determined by the relevant refractive indices, which

ill b diff t f th t di ti d th f th ill b i l t f h


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For a sample of uniform thickness, regions in which !! ! !! is constant show the same

interference color when viewed between crossed polars. Contours of constant principal stress difference are

therefore observed as isochromatic lines. In order to determine the directions of the principal stress it is

necessary to use isoclinic lines as these dark fringes occur whenever the direction of either principal stressaligns parallel to the analyser or polariser direction.

In a circular polariscope setup two quarter-wave plates are added to the experimental setup of the

plane polariscope. The first quarter-wave plate is placed in between the polarizer (P) and the specimen (M)

and the second quarter-wave plate is placed between the specimen (M) and the analyser (A). The effect of

adding the quarter-wave plates is that we get circularly polarised light. The basic advantage of a circular

polariscope over a plane polariscope is that in a circular polariscope setup we only get the isochromatics and

not the isoclinics. This eliminates the problem of differentiating between the isoclinics and the

isochromatics.


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2. Stress Concentration Factor of plate with single hole (Figure 2):Find maximum stress at point A, by noting fringe order. Also find maximum stress at point B.

Stress = #1 #2 = N *F / t

At point A :#

2 =0, as inner surface of hole is free, so only maximum principle stress exists, tangent to hole.At point B : We assume stress distribution is sufficiently uniform and we can assume #2 = 0.

Therefore, stress difference in our case nothing but maximum stress.

Stress concentration factor = stress at point A / Stress at point B.

Figure 2 Figure 3

3. Stress Concentration Factor of plate with three holes (Figrue 3):

x

x

A

B

x

x

A

B


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Experiment 3b Rotating Beam Bending Fatigue Experiment

Objective: To study the effect of cantilever loading on standard rotating bending fatigue specimen and to

find its endurance strength

Theory: In many machines, components are subjected to cyclic (repeated) loads of varying frequencies as

well as amplitudes. The stresses induced due to such forces are called as fluctuating stresses. It is observed

that about 80% of failures of mechanical components are due to fatigue loading resulting from fluctuating

stresses. It has been observed that materials fail under fluctuating stresses at a stress magnitude, which is

lower than ultimate tensile strength of the material. Sometimes the magnitude is even smaller than the yield

strength. Further it has been found that the magnitude of the stress causing fatigue failure decreases as the

number of stress cycles increases. This phenomenon of decreased resistance of the materials to fluctuatingstresses is called fatigue.

Fatigue failure begins with the nucleation of a crack at some point in the material. This crack is more

likely to nucleate in the following regions:

1] Regions of discontinuity, such as oil holes, keyways, screw threads, etc.

2] Regions of irregularities in machining operations such as scratches on surface, etc.

3] Internal cracks due to defects in materials, e.g., blow holes.

These regions are subjected to stress concentration due to the crack. The crack grows due to

fluctuating stresses until a section of the component is so reduced that the remaining portion is subjected tosudden fracture.

There are two distinct areas of fatigue failure

1] Region indicating slow growth of crack with a fine fibrous appearance (sub-critical crack growth)

2] Region of sudden fracture with a coarse granular appearance (catastrophic crack propagation)

Fatigue cracks are not visible till they reach the surface and by that time the failure has already

occurred. The fatigue failure is sudden and total. The fatigue failure, however, depends upon a number of

factors, such as number of cycles, mean stress, stress amplitude, stress concentration, residual stresses,

corrosion & creep. The fatigue or endurance limit for a material is defined as the maximum amplitude of

l l i h h d d i i f li i d b ( i ll )


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Experiment 4a Uniaxial Tensile Test

Objective: To determine the following in an uniaxially loaded mild steel and aluminum specimen.

a) The maximum tensile stressb) The modulus of elasticity.c) The percentage reduction in cross section.d) Construction of the true-stress vs. true stain curve

Equipment and Tools: The Universal Testing Machine, Vernier Calipers, ruler, extensometer.

Background and Theory: The uniaxial tensile test is a very important and useful experiment conducted in

experimental solid mechanics. Besides provided elastic and inelastic material properties such as elasticmodulus, yield/flow stress, strain hardening, etc., the failure of a material can best be studied from this

experiment. The uniaxial tensile test is also often used to develop elasto-plastic constitutive equations for

homogeneous and isotropic materials. Variations of this experiment (not done in this lab) including high

temperatures and multiple strain rates reveal valuation information on the mechanisms of deformation sought

after in the design of new materials (e.g., alloy systems).

In this experiment a dog-boned shaped specimen is loaded in displacement control while measuring loa

using a Universal Testing Machine (UTM). It is called universal because tension, compression, bending and shear tes

can be performed on the same machine. The machine has a capacity of 100 KN. The machine has two motor drive

screws, which carries the upper beam. Load cell, which measures the force applied, is fixed on the upper beam. Th

crosshead displacement is measured using LVDT (linear variable differential transformer). The load deformatio

curve is plotted on the monitor screen. Extensometer is an instrument by which you will measure strain. Th

mechanical extensometer provided consists of two lever arms, which are bound to the specimen using a elastic band

distance 20 mm apart. The relative motion of the arms is recorded by the extensometer-amplifier circuit, which gives

a voltage output. This voltage output is converted to displacement using a calibration sheet. The displacement divide

by the original length of the gauge section chosen (20 mm) will give engineering strain. The engineering stress is

computed from the force measured by the load cell and the initial cross-sectional area of specimen. From th

ti i i t d t i th t t d t i d t i l l t d d ti f th t i l


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Experiment 4b Charpy Impact Test

Objectives:

a) To study the impact resistance of metals using Impact testing machine of the Charpy type.

b) To determine the variation of impact strength of a material with change in temperature.

Equipment and tools:

Impact testing machine, scale, standard charpy specimens, furnace and thermocouple, liquid nitrogen.

Theory: Some materials like cast iron, glass and some plastics which offer considerable resistance to static

load, often shatter easily when a sudden load (impact) is applied. The impact strength is defined as the

resistance of the materials to shock dynamic load. The impact testing is to find out the energy absorbed by a

specimen when brought to fracture by hammer blow and gives a quality of the material, particularly itsbrittleness. Highly brittle materials have low impact strength.. Temperature also influences impact strength

of the materials. The area under the stress strain curve in a static tensile test is measure of the energy

absorbed per unit volume of the material, called the modules of toughness. This is also a measure of the

impact strength of the material. Impact test can also be used to determine the transition temperature for

ductile to brittle behavior.


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Figure 2: Typical Ductile-to-Brittle Transition Curve

Procedure:

1.Note down the dimensions of the specimen and find the working area of the specimen at the place of

notch.

2. With no specimen on the anvil, raise the pendulum to an initial reading R1 in the dial and release it.

3.Note the reading R2 of the dummy pointer on the dial. The difference is the energy loss due to friction.

4.Now place the specimen accurately in position on the anvil.5. Raise the pendulum to the same initial height and release. The pendulum swings to the other side

rupturing the specimen.

6.Note the reading R3 on the dummy pointer on the dial.

7. Tabulate the reading.

8. Repeat the procedure for change in temperature and examine the variation of impact strength.

Report:

1 Fi d t th l d t f i ti i j l


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Experiment 5a Strains in a Ring under Combined Bending and Extension

Objective: (a) To measure strains using bonded foil strain gauges in combination with a Wheatstone Bridge.

(b) Compare with linear elastic solution in a proving ring (circular beam with rectangular cross-section)subjected to combined extension and bending with strains measured from experiment.

Equipment and Tools: Venier calipers, strain measuring bridges with bonded foil gauges, circular ring,

weights and weight hanger.

Theory: A thin ring of internal radius risubjected to a diametrical pull F is shown in the figure (a) below.

Using symmetry the free body diagram of a quarter ring is shown in figure (b). At != 0, the shear force is

zero and hence only an axial load ofF/2and bending momentM0, which is indeterminate are acting on thecross-section. Using energy method, the bending moment at any !can be calculated and is given by:

!! !!"

!!"#$ !

!

!

, which gives at != 0, !! !!"

!!!

!

!

.


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! ! !

!

!!!

!"

!!! ! !!!

The stress at the horizontal cross-section, i.e., at != 0, using r = R-y, is then give by

! ! !

!

!!!

!!!

! ! ! ! !!

!

!!! !"

!

!!

!

!

!

! ! ! ! !!

!

!!! !

!

!!

!

!

!

!"

which implies the strain at the inner and outer surfaces of the ring at != 0 are:

!! !

!

!!"! !

!

!!

!

!

!! ! !!!

!"#!"#!

! !

!

!!"! !

!

!!

!

!

!! ! !!!

!"#

Procedure:

Measure the dimensions of the ring. Mount ring on a fixture. Connect the strain gauges to strain measuring

bridge. Load the ring in diametrical opposite direction and note the strain value at various loads. Note, beforestarting the measurements, balance the Wheatstone bridge. If the bridge is not automatically balancing,

report to the TA as there could be a problem with the strain gauge.

Report:

1.Plot the load-unload strains on all the four gauges.

2. Compare them with theoretical values.

3. Write your observations based on the results.


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Experiment 5b Large Deflection of a Cantilever Beam

Objectives:

a) To find and compare the large deflections of a cantilever beam with elementary strength of materialstheory, large deflection approach and the experimental results.

b) To demonstrate the difference between the behavior of an actual physical model and its mathematical

approximation.

Theory: For the deflection of a cantilever beam with point load, the Euler-Bernoulli elementary beam theory

gives the following relationship between applied load P, the flexural rigidity and curvature (approximated asthe second derivative of the transverse displacement).

2

2 ( )

d yEI M P l x

dx= = !

(1)

With the boundary conditions, dy/dx = 0 and y = 0 at x =0 leads to the solution for deflection at any distance

x from the fixed end as 2 (3 )

6

Px l xy

EI

!

=

(2)


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1

22

(sin sin )o

d P

ds D

!! != "

(7)From the figure

sin .dy dy d

ds d ds

!!

!= =

Substituting for d"/dsfrom equation (7)1

2sin 2 (sin sin )ody

P Dd

! ! !!

= "

This is a non-linear differential equation. Integrating through the entire length lwill give the vertical

deflection $Vat the end B1

22 sin (sin sin )v o

v o

o o

dy D P d

! "

! " " " " #

= = #$ $, which gives

[ ]12

1 ( , 2) ( , )v E K E KL

!" #

$= % %

.. (8)

Where E(K, "/2) and E(K, %1) are respectively the complete and incomplete elliptical integrals of the second

kind expressed as:2

2 2

0

( , / 2) 1 sinE K K d

!

! " "= #$ and1

2 2

1

0

( , ) 1 sinE K K d

!

! ! != "#

The horizontal deflections at the end B is obtained from the equation (4) and (5) noting that "= 0 at x = 0

( )h

dP L D

ds

!"# =

From equation (2) noting that X= 0, "= 0.

2 iPd !! 2 iL ! "


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Experiment 6a Experimental Validation of Reciprocal and Superposition Theorem

Objectives: To understand the reciprocal and superposition theorem apparatus to possibly illustrate:

a) Measurement of beam deflectionsb) Demonstrate/verify reciprocal and superposition theorem

Equipment and Tools: Simply-supported rectangular beam, Weights, Dial gauge, Ruler

Theory: The deflections of a beam are an engineering concern as they can create an unstable structure if they

are large. People dont want to work in a building in which the floor beams deflect an excessive amount,

even though it may be in no danger of failing. Consequently, limits are often placed upon the allowable

deflections of a beam, as well as upon the stresses. When loads are applied to a beam their originally straight

axes become curved. Displacements from the initial axes are called bending or flexural deflections. The

amount of flexural deflection in a beam is related to the beams area moment of inertia (I), the single applied

concentrated load (P), length of the beam (L), the modulus of elasticity (E), and the position of the applied

load on the beam. The amount of deflection due to a single concentrated load P is given by:

! !!!

!

!"#

Where k is a constant based on the position of the load, and on the end conditions of the beam.

Reciprocal theorem


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Procedure:

1. Mark points A,B and C on beam with the help of ruler at some distance from one end of the beam.2. Start applying variably increasing load at point B and measure the corresponding deflection at point A

using dial gauge. Also note down the dial gauge reading during unloading.3. Now apply variably increasing load at point C and measure the corresponding deflection at point A using

dial gauge. Also note down the dial gauge reading during unloading.

4.Now apply both loads simultaneously at point B and C and measure the corresponding deflection at point

A using dial gauge.

5. Tabulate the results.

Report:

The deflections obtained from the experiment and the deflections obtained through mathematical formulae

are to be compared and conclusions to be stated.


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Experiment 6b Torsion of a Circular Shafts

Objective: The aim of experiment is to obtain torque-twist relationship for an aluminum circular shaft and

compare the result with theoretical predictions.

Equipment and Tools: Torsion setup, solid circular rod of Al, Vernier calipers.

Theory: Inelastic torsion: Figure below shows the typical stress-strain relationship for metals. The initial

portion is linear where the material response is elastic. Once the stress exceedsyield stress, the relationship

is no longer linear and the material response is referred to as plastic. The material displays strain-hardening,

whereby the slope of curve beyond yield point increases with strain. For our analysis here, we will

approximate this strain hardening response by a horizontal line. Such material response is called elastic-

perfectly plastic material behavior.

Figure E2.1: Stress-strain relationship in metals


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List of key words associated with the experiments

Impact testToughness, impact energy, Charpy impact test, toughness variation with temperature, thermocouple

Hardness test

Hardness, Rockwell hardness, HRB & HRC, ball indenter, diamond cone indenter

Torsion test

Torsion of circular sections, shear modulus, yield stress in shear, torque v/s angle of rotation diagram,

torsional stress distribution over the section

Photoelasticity test

Circular and plane polariscope, stress concentration, isoclinics, isochromatics, birefringence, stress optic law

Determination of strain in circular ring

Strain gauge, strain indicator, stresses in curved beams, wheatstones bridge, quarter bridge

Tension test

Load cell, Universal testing machine, extensometer, Load v/s strain plot, stress v/s strain curve for mild steel,Youngs modulus, proportionality limit, elastic limit

Digital Image Correlation

Speckle pattern, subset, region of interest, camera, lens, alignment, correlation, displacement field

Rotating bending Fatigue test

Mean stress, stress amplitude, Endurance limit, Stress v/s Life plot for metals, notch sensitivity, stress

i


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Batch

T1 140100023 KARAN JAIN 140100087 ABHISHEK EKKA 14D100011 KULKARNI SOMESH DIGAMBER 14D100015 ASHOK KUMAR CHAHIL

T2 140100009 YASHRAJ GURUMUKHI 140100071 ABHINAV BANKA 140100097 PATURU VENKATA SAI SUSHANT 140100112 ARAVIND SANKAR P S

T3 140100018 PRANAV KENI 14D100022 SAKSHAM HOODA 140100030 THAKRE RISHIKESH VIJAY 140100117 AKASH KUMAR

T4 140100015 MANAN DOSHI 140100065 PRASAD AGRAWAL 140100047 RAVI JAIN 140100100 MADDIMADUGU RONIL RAJ

T5 140100069 CHINMAY MAHESHWARI 14D100004 CHIKHALIKAR AKASH KEDAR 140100005 BHAGAT YASH YOGESH 140100073 MANIRAM SINGH

T6 140010031 AAKRITI VARSHNEY 140100044 VAIBHAV JAIN 140100066 DINESH KUMAR 130100028 KARAN

T7 140100091 KUNTUMALLA GOWTHAM 140100013 BABHULKAR PRATIK DILIP 14D100007 AUTI GUNJAN SANJAY

T8 140100035 VARMA SUSHIL MAHAVIR 140100059 SHUBHAM BANSAL 14D100017 RAJAN DEWANGAN

T9 140100024 ABHISHEK KUMAR CHAUDHARY 140100048 NITIN CHOUDHARY 140100004 CHAUDHARI AKUL ANANT

T10 140100116 KSHITIJ BAJAJ 140100012 PRASADE RISHIKESH VINAY 140100103 VENKATA PRAVEEN BOKINALA

T11 14B030010 FRANKLIN SHIBU VARGHESE 140100016 MONISH PATHARE 140100027 SAMYAK RAJENDRA KAMBLE

T12 14D110001 SHARNAM SHAH 14D100002 VAIBHAV UMAKANT NEHETE 140100062 ABHAS GUPTA

T13 140020121 GURJOT SINGH WALIA 140100076 DEEPAK KINRA 140100057 HARVEER SINGH JAGARWAR

T14 140100099 T SAI GOUTAM 140100052 SHREYAM NATANI 140100019 PRATYARTH RAO

T15 140110010 SAHIL SANTOSH MODI 140100094 TRISHALA SUNIL BOTHRA 140100109 CHIRAG M RAMESH

T16 14D170017 MANKAR AMEY VIVEK 140100010 NEIL SAMUEL GEORGE 140100105 MANDA PUNEETH

T17 140110034 SHETTY VEDIKA DEJAPPA 140100060 YASH DHOBLE 140100088 PIYUSH KUMAR BRAMHANE

T18 140020048 SHIVAM GARG 140100104 BHOGARAJU KRISHNA SANDEEP 14D100016 SUBRAT KUMAR PATRO

T19 14D100020 TEJAS S KOTWAL 140100078 RISHABH GOYAL 140100068 HIMANSHU CHEETA

T20 140110042 ARNAV DESHMUKH 140100074 PRASHANT KUMAR VARUN 140100081 CHETAN SINGH

T21 140100041 KANISHKA PANDA 140100028 SHREERANG 140100040 MAHESH KUMAR SONI

T22 140100063 ROHIT BHOR 140100029 EKADE HRISHIKESH SUSHIL 14D100014 ADITYA KALRA

T23 140110053 SANAT SAMEER MALHOTRA 140100070 HARSHIT AGRAWAL 140100045 VIKAS SUTRAKAR

T24 140100033 VISHVESH KORANNE 140100043 AMIT A PATIL 140100106 RAJA RAVINDRANADH

Roll Numbes and Names of Students from S1 section


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Week Date E1 E2 E3 E4 E5 E6 V1 V2 V3 V4 V5 V6

W2 12/Jan/16 T1,T13 T2,T14 T3,T15 T4,T16 T5,T17 T6,T18 NO VIVA

W3 19/Jan/16 T7,T19 T8,T20 T9,T21 T10,T22 T11,T23 T12,T24 T1,T13 T2,T14 T3,T15 T4,T16 T5,T17 T6,T18

W4 26/Jan/16 HOLIDAY

W5 2/Feb/16 T2,T14 T3,T15 T4,T16 T5,T17 T6,T18 T1,T13 T7,T19 T8,T20 T9,T21 T10,T22 T11,T23 T12,T24

W6 9/Feb/16 T8,20 T9,21 T10,22 T11,23 T12,24 T7,19 T2,T14 T3,T15 T4,T16 T5,T17 T6,T18 T1,T13

Sat 13/02/16 T3,T15 T4,T16 T5,T17 T6,T18 T1,T13 T2,T14 T8,20 T9,21 T10,22 T11,23 T12,24 T7,19

W7 16/Feb/16 T9,T21 T10,T22 T11,T23 T12,T24 T7,T19 T8,T20 T3,T15 T4,T16 T5,T17 T6,T18 T1,T13 T2,T14

W8 23/Feb/16

W9 1/Mar/16 T4,T16 T5,T17 T6,T18 T1,T13 T2,T14 T3,T15 T9,T21 T10,T22 T11,T23 T12,T24 T7,T19 T8,T20





W14 5/Apr/16 T12,T24 T7,T19 T8,T20 T9,T20 T10,T22 T11,T23 T6,T18 T1,T13 T2,T14 T3,T15 T4,T16 T5,T17

W15 12/Apr/16 T12,T24 T7,T19 T8,T20 T9,T20 T10,T22 T11,T23

15-Apr-16

Experiments Viva

MIDSEM WEEK

Exam


24/25

Batch

F1 140100101 POTLURI VACHAN DEEP 140100064 AYUSH BHADORIYA 14D100013 VARUN CHAUDHARY 14D100012 PUNEET KUMAR

F2 140100110 RAUNAQ BHIRANGI 140100084 PINNAKA PRUDHVI 140100096 PALREDDY SREERAM KUMAR REDDY 140100046 SACHIN MEENA

F3 140110036 RISHABH ISRANI 14D170009 HRISHIKESH ANIL KULKARNI 140100086 GULAM SARWAR 140100083 CH P VENKATA SAI KIRAN

F4 140100025 TEJAS SRINIVASAN 140100049 KUNJ P PATEL 140100001 PAREKH MANMATH KARTIKEY 140100085 BATTINA SIVAJI

F5 140100020 DAMANI PRANAV RAJKUMAR 140100042 SHIKHAR BUDHIRAJA 14D100009 PRAJESH ARVIND JANGALE 12D100034 ABHINAV RATHOR

F6 140100008 NIHAR PRATIN VETE 140100067 SATYAM NYATI 140100003 YADAV RAM RAMASHANKAR

F7 140020078 VENKATESH KABRA 140100037 MANTRI KARAN SANJAY 140100080 AYUSH ANAND

F8 140100021 PRANIT BHANDARI 140100098 NEELARAPU SANDEEP 140100077 HIMANSHU DENGRE

F9 140100026 KANSARA VATSAL SANJAY 140100114 NILAKSH KUMAR AGGARWAL 14D100008 SHRUTI KHAIRKAR

F10 14D170011 PALASH GAJJAR 140020074 GURMEET SINGH BEDI 14D100021 MUDIT SINGH VATS

F11 140100002 MUDIT BOTHRA 140100089 ANJAN KUMAR PATEL 140100038 ASHMAK MOON

F12 140100072 SHUBHAM KUMAR 140100051 SHITANSHU DEHGAL 140100093 CHALAVADI SAI SUDHIRF13 14D100019 ANKUSH MUKHERJEE 14D100006 GAURI RSHIKESAN PADUTHOL 140100032 ARYA S V

F14 14D100003 ROSHAIL INFANT GERARD 140100034 RAUT AKSHAY RAJENDRA 140100107 VEENAM MOHITH SAI NAG

F15 140010006 VISHWA JIGNESH VASANI 140100115 NITIN MAURYA 140100108 DINDIGALA PRUDHVI CHARAN

F16 140100061 AMOGH DIXIT 140100014 SHANBHAG SOHAM SUBHASH 14D100010 SHISODE AJINKYA RAJIV

F17 140040012 HARSH SHETH 140100054 SUNNY SONI 140100036 NISHANT NEERAJ

F18 140100056 AYUSH SHARMA 14D100005 TANMAY RAJU BHOITE 140100058 JALARAM CHOUDHARY

F19 140100092 GANGAM VAMSHI CHANDRA 140100007 UTKARSH GUPTA 140100031 MESHRAM AYUSH DEEPAK

F20 140100102 RACHAMADUGU VYSALI NIKHITA 140100039 GAIKWAD ABHAY DASHARATH 140100075 NEERESH PRIYADARSHI

F21 140100082 RAHUL GOPE 140100079 SANSKAR JAIN 140100017 LAD MEHUL NITIN

F22 140040057 NAMAN GUPTA 140100050 MITALI ANIL MEDHE 140100053 DHEERAJ KUMAR VERMA

F23 140110054 VAIBHAV CHOUDHARY 140100006 MUTHA ADITYA SANTOSH 140100095 VINEET KUMAR

F24 140010054 YASHASWINI K MURTHY 140100113 MISHAL ASSIF P K 140100055 HARISH MEENA

Roll Numbes and Names of Students from S2 section


25/25

Week Date E1 E2 E3 E4 E5 E6 V1 V2 V3 V4 V5 V6

W1 08/01/16 F1,F13 F2,F14 F3,F15 F4,F16 F5,F17 F6,F18

W2 15/Jan/16 F7,F19 F8,F20 F9,F21 F10,F22 F11,F23 F12,F24 F1,F13 F2,F14 F3,F15 F4,F16 F5,F17 F6,F18

W3 22/Jan/29 F2,F14 F3,F15 F4,F16 F5,F17 F6,F18 F1,F13 F7,F19 F8,F20 F9,F21 F10,F22 F11,F23 F12,F24

W4 29/Jan/16 F8,20 F9,21 F10,22 F11,23 F12,24 F7,19

W5 5/Feb/16 F3,F15 F4,F16 F5,F17 F6,F18 F1,F13 F2,F14 F8,20 F9,21 F10,22 F11,23 F12,24 F7,19

Sat 6/Feb/16 F2,F14 F3,F15 F4,F16 F5,F17 F6,F18 F1,F13

W6 12/Feb/16 F9,F21 F10,F22 F11,F23 F12,F24 F7,F19 F8,F20 F3,F15 F4,F16 F5,F17 F6,F18 F1,F13 F2,F14

W7 19/Feb/16 F4,F16 F5,F17 F6,F18 F1,F13 F2,F14 F3,F15 F9,F21 F10,F22 F11,F23 F12,F24 F7,F19 F8,F20

W8 26/Feb/16

W9 4/Mar/16 F10,F22 F11,F23 F12,F24 F7,F19 F8,F20 F9,F21 F4,F16 F5,F17 F6,F18 F1,F13 F2,F14 F3,F15


Sat 12/Mar/16 F11,F23 F12,F24 F7,F19 F8,F20 F9,F21 F10,F22 F5,F17 F6,F18 F1,F13 F2,F14 F3,F15 F4,F16


W12 25/Mar/16

W13 1/Apr/16 F12,F24 F7,F19 F8,F20 F9,F20 F10,F22 F11,F23 F6,F18 F1,F13 F2,F14 F3,F15 F4,F16 F5,F17

W14 8/Apr/16

W15 12/Apr/16 F12,F24 F7,F19 F8,F20 F9,F20 F10,F22 F11,F23

15/Apr/16

MIDSEM WEEK

HOLIDAY

HOLIDAY

Exam

Experiments Viva

NO VIVA

No Viva

No Experiment

Date post:	27-Feb-2018
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