The document discusses the design and development of a low-cost fatigue testing machine for sheet metals. It aims to address the limitations of existing universal fatigue testing machines which are expensive and require skilled labor. The proposed prototype will be cheaper and easier to operate, making it more suitable for small industries. It will use components like a stepped pulley system and a hammer mechanism driven by a motor to apply cyclic loads on sheet metal specimens. The design considerations, methodology, calculations and test results validating the prototype are presented. The machine is able to successfully determine the fatigue strength of aluminum, brass and copper sheet metals at a lower cost.
Design & Fabrication of Low Cost Small-Scale Fatigue Testing MachineAvinash Barve
Many engineering machines and mechanical components are subjected to fluctuating stresses, taking place at relatively high frequencies and under these conditions, failure is found to occur. This is “fatigue failure”.
Fatigue is a failure of material or machine due to the action of repeated or fluctuating stress on a machine member for some number of times/cycles. This failure begins with a small crack. The initial crack is so minute that it cannot be detected by the naked eye and is even quite difficult to locate . And this led to the invention of a fatigue the testing machine.
In view of effective design that will not fail accidentally, this research is conceived. This testing machine will determine the strength of materials under the action of fatigue load. Specimens are subjected to repeated varying forces or fluctuating loading of specific magnitude while the cycles or stress reversals are counted to destruction. The first test will include the fatigue test of the material . The second test which we are going to combine testing of bending or torsion. Thus the results of these processes will be plotted through software integration.
introduction, types of scissor lift, advantages and disadvantages design of different components and calculation based of selected material. generated 3d model in solidworks.
Design & Fabrication of Low Cost Small-Scale Fatigue Testing MachineAvinash Barve
Many engineering machines and mechanical components are subjected to fluctuating stresses, taking place at relatively high frequencies and under these conditions, failure is found to occur. This is “fatigue failure”.
Fatigue is a failure of material or machine due to the action of repeated or fluctuating stress on a machine member for some number of times/cycles. This failure begins with a small crack. The initial crack is so minute that it cannot be detected by the naked eye and is even quite difficult to locate . And this led to the invention of a fatigue the testing machine.
In view of effective design that will not fail accidentally, this research is conceived. This testing machine will determine the strength of materials under the action of fatigue load. Specimens are subjected to repeated varying forces or fluctuating loading of specific magnitude while the cycles or stress reversals are counted to destruction. The first test will include the fatigue test of the material . The second test which we are going to combine testing of bending or torsion. Thus the results of these processes will be plotted through software integration.
introduction, types of scissor lift, advantages and disadvantages design of different components and calculation based of selected material. generated 3d model in solidworks.
Method to calculate the press fit force for device as servo presses, hydraulic presses and other devices used to fit componets in automated assembly line
Static force analysis, Unit-1 of Dynamics of machines of VTU Syllabus compiled by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
It is power point presentation on belt and chain drive. you can find working and mechanism of chain and belt drive and their advantage and disadvantages.....enjoy.
This PowerPoint Presentation contains some useful information regarding the Shaper machine and the mechanisms used in the same. This is useful specifically more helpful to the GTU students for Mechanical engineering in MP1.
PPT IS IMPORTANT FOR FE PUNE UNIVERSITY STUDENTS FOR SUBJECT BME. DETAILED DESCRIPTION IS GIVEN ABOUT LATHE MACHINE, DRILLING MACHINE AND GRINDING MACHINE
Method to calculate the press fit force for device as servo presses, hydraulic presses and other devices used to fit componets in automated assembly line
Static force analysis, Unit-1 of Dynamics of machines of VTU Syllabus compiled by Hareesha N Gowda, Asst. Prof, Dayananda Sagar College of Engg, Blore. Please write to hareeshang@gmail.com for suggestions and criticisms.
It is power point presentation on belt and chain drive. you can find working and mechanism of chain and belt drive and their advantage and disadvantages.....enjoy.
This PowerPoint Presentation contains some useful information regarding the Shaper machine and the mechanisms used in the same. This is useful specifically more helpful to the GTU students for Mechanical engineering in MP1.
PPT IS IMPORTANT FOR FE PUNE UNIVERSITY STUDENTS FOR SUBJECT BME. DETAILED DESCRIPTION IS GIVEN ABOUT LATHE MACHINE, DRILLING MACHINE AND GRINDING MACHINE
SEMINAR @Design And Analysis Of A Connecting Rod With Different MaterialsDr.M BALA THEJA
Internal Combustion engine has many parts like cylinder, piston, connecting rod, crank and crank shaft. The connecting rod is very important part of an engine.
The connecting rod is very important part of an engine. Working of the connecting rod is to transmit power of piston to crank pin.
Aluminium alloy 1100 is used in manufacturing of Aircraft electrical conduits, Rivets, hose reel, sewage pumps, pressure regulator, level indicator ,control valves etc,. Friction stir welding (FSW) is an innovative solid state joining technique, employed for joining aluminium, magnesium, zinc and copper alloys. The FSW process parameters play a major role in deciding the weld quality.Effect of the tool rotational speed, weld speed, shoulder pin diameter, on the temperature at weld
nugget and temperature at HAZ were found out.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
White wonder, Work developed by Eva TschoppMansi Shah
White Wonder by Eva Tschopp
A tale about our culture around the use of fertilizers and pesticides visiting small farms around Ahmedabad in Matar and Shilaj.
Storytelling For The Web: Integrate Storytelling in your Design ProcessChiara Aliotta
In this slides I explain how I have used storytelling techniques to elevate websites and brands and create memorable user experiences. You can discover practical tips as I showcase the elements of good storytelling and its applied to some examples of diverse brands/projects..
Explore the essential graphic design tools and software that can elevate your creative projects. Discover industry favorites and innovative solutions for stunning design results.
Decormart Studio is widely recognized as one of the best interior designers in Bangalore, known for their exceptional design expertise and ability to create stunning, functional spaces. With a strong focus on client preferences and timely project delivery, Decormart Studio has built a solid reputation for their innovative and personalized approach to interior design.
Visual Style and Aesthetics: Basics of Visual Design
Visual Design for Enterprise Applications
Range of Visual Styles.
Mobile Interfaces:
Challenges and Opportunities of Mobile Design
Approach to Mobile Design
Patterns
Between Filth and Fortune- Urban Cattle Foraging Realities by Devi S Nair, An...Mansi Shah
This study examines cattle rearing in urban and rural settings, focusing on milk production and consumption. By exploring a case in Ahmedabad, it highlights the challenges and processes in dairy farming across different environments, emphasising the need for sustainable practices and the essential role of milk in daily consumption.
PDF SubmissionDigital Marketing Institute in NoidaPoojaSaini954651
https://www.safalta.com/online-digital-marketing/advance-digital-marketing-training-in-noidaTop Digital Marketing Institute in Noida: Boost Your Career Fast
[3:29 am, 30/05/2024] +91 83818 43552: Safalta Digital Marketing Institute in Noida also provides advanced classes for individuals seeking to develop their expertise and skills in this field. These classes, led by industry experts with vast experience, focus on specific aspects of digital marketing such as advanced SEO strategies, sophisticated content creation techniques, and data-driven analytics.
Can AI do good? at 'offtheCanvas' India HCI preludeAlan Dix
Invited talk at 'offtheCanvas' IndiaHCI prelude, 29th June 2024.
https://www.alandix.com/academic/talks/offtheCanvas-IndiaHCI2024/
The world is being changed fundamentally by AI and we are constantly faced with newspaper headlines about its harmful effects. However, there is also the potential to both ameliorate theses harms and use the new abilities of AI to transform society for the good. Can you make the difference?
EASY TUTORIAL OF HOW TO USE CAPCUT BY: FEBLESS HERNANEFebless Hernane
CapCut is an easy-to-use video editing app perfect for beginners. To start, download and open CapCut on your phone. Tap "New Project" and select the videos or photos you want to edit. You can trim clips by dragging the edges, add text by tapping "Text," and include music by selecting "Audio." Enhance your video with filters and effects from the "Effects" menu. When you're happy with your video, tap the export button to save and share it. CapCut makes video editing simple and fun for everyone!
1. THE NATIONAL INSTITUTE OF ENGINEERING
DEPARTMENT OF INDUSTRIAL AND PRODUCTION
ENGINEERING
Presented by
ADARSH V
GAGAN PONNAPPA M G
RAKESH J M
YATHISH B
Under the guidance:
Dr H N Divakar
Associate professor
2. PROBEM DEFINITION
Weakening of a material is the progressive and
localised structural damage that occurs when a
material is subjected to cyclic loading. If the loads are
above a certain threshold, microscopic cracks will
begin, eventually crack will reach a critical size, the
crack will propagate suddenly, and the structure will
fracture
To calculate the fatigue strength of the materials,
high cycle fatigue machines are available.
3. PROBEM DEFINITION
High cycle fatigue strength (about 104
to 108
cycles) can
be calculated by the machine, such as load-controlled
servo-hydraulic test rig is commonly used in these
tests, with frequencies of around 20–50 Hz. Other sorts
of machines—like resonant magnetic machines—can
also be used, to achieve frequencies up to 250 Hz.
4. The current fatigue testing machines are universal in
nature. These machines are designed to test all the
factors responsible for fatigue in a component. These
machines are capable of testing fatigue strength for
different types of components and materials. Hence
these machines are extremely large, very expensive
and require highly skilled labour to operate.
Ex: Servo hydraulic test system
PROBEM DEFINITION
6. The prototype that is being designed is for a
specific specimen, mainly sheet metals. This
machine can be used to determine the minimum
requirements for a component to pass a fatigue
test.
This prototype is less expensive and easy to
operate and are more useful in small scale
industries which do not require high end
specifications.
PROBEM DEFINITION
9. SPECIMENS USED
Aluminium Sheet Metal
Aluminium is also a popular metal used in sheet metal
due to its flexibility wide range of options, cost
effectiveness, and other properties
Common applications include electronic chassis,
tanks, and pressure vessels. It is used in modern aircraft
structure.
10. SPECIMENS USED
Brass Sheet Metal
Brass can also withstand very high temperatures, and
has excellent conductivity, making them ideal materials
for conveying hot water in a residential or commercial
space.
Moreover, brass is surprisingly flexible and highly
moldable compared to other metals.
11. SPECIMENS USED
Copper Sheet Metal
Copper alloys become stronger and more ductile as
temperature goes down.
They also retain excellent impact resistance to 20 K.
12. METHODOLOGY
Metal cutting
Metal cutting processes work by causing fracture of
the material that is processed. Usually, the portion
that is fractured away is in small sized pieces, called
chips. Common cutting processes include sawing,
shaping (or planning).
13. METHODOLOGY
Welding
Joining process is done with the help of welding
(SMAW). SMAW is briefly explained below:
In the shielded metal arc welding process (SMAW)
the 'stick' electrode is covered with an extruded
coating of flux.
14. METHODOLOGY
Drilling
Drilling is a cutting process that uses a drill bit to
cut or enlarge a hole of circular cross-section in solid
materials.
Common drill bit materials include hardened steel
(High Speed Steel, Titanium Nitride coated steel); for
cutting harder materials, drills with hard inserts, e.g.
carbide or CBN inserts, are used.
15. METHODOLOGY
Assembly
An assembly line is a manufacturing process (most of
the time called a progressive assembly) in which
parts (usually interchangeable parts) are added as
the semi-finished assembly moves from work station
to work station where the parts are added in
sequence until the final assembly is produced.
16. STEPPED PULLEY CIRCULAR PLATE BEARING RING
MILD STEEL ANGLE BAR LINEAR BEARING BLOCK V-TYPE BELT
COMPONENTS USED
24. DIMENSIONS OF PLATFORM
LENGTH OF PLATFORM: 0.6 m
WIDTH OF PLATFORM: 0.61 m
THICKNESS OF PLATFORM MATERIAL:
0.025 m
HEIGHT OF PLATFORM : 0.69m
PLATFORM
Dimensions of Components
25. DIMENSIONS OF BOARD ON
WHICH HAMMER SHAFT
TRACK IS MOUNTED,
WIDTH: 0.6m
HEIGHT: 0.07m
THICKNESS: 0.035m
BOARD
Dimensions of Components
26. DIMENSIONS OF HAMMER
SHAFT
LENGTH: 0 .22m
DIAMETER OF SHAFT: 0.30m
LENGTH OF CONNECTING
ROD: 0.17m
DIAMETER OF HAMMER BALL:
0.30m
HAMMER
SHAFT
Dimensions of Components
28. MOTOR SPECIFICATIONS,
AKASH SINGLE PHASE AC
MOTOR,
POWER: 1.5 HP
VOLTS: 220 V
CURRENT: 9.9 A
SPEED: 1475 RPM
DIMENSIONS OF MOTOR
PLATFORM,
LENGTH OF TRACK: 0.205m
WIDTH OF TRACK: 0.22m
HEIGHT OF TRACK: 0.07m
MOTOR
Dimensions of Components
35. Speed Reduction Ratio
It is the ratio of the product of diameter and
speed of the one shaft to the product of diameter and
speed of the another shaft which is to be connected
each other. Its value must be unity.
To calculate the speed reduction ratio
diameter of each shaft/pulley and the speed of any
one shaft/pulley is required.
i.e Speed Reduction Ratio is calculated by
N1D1=N2D2
SPEED CALCULATIONS
36. Specification of the pulleys
Position Diameter in meter Speed in rpm
Motor pulley 0.04 1475
Middle shaft pulley 0.21 280
Middle shaft stepped-
pulleys
0.03, 0.06, 0.09 280
Upper shaft stepped-
pulley
0.12, 0.10, 0.08 70, 168, 315
Crank 0.14 60, 120, 180
SPEED CALCULATIONS
38. Using Load Cell
One can calculate the load acting by keeping the
load cell below the hammer when the hammer is in
working. Load cell measures the load acting on it
and gives the convenient values.
This method gives very accurate value.
This is less time consuming process.
The Load acting on the sheet metal in Low Cycle
Fatigue testing machine when it is working condition
is 12N
Load Acting on the Work Piece
39. SPECIMEN TEST
Dimension of the specimen
LENGTH OF SPECIMEN: 0.24 m
WIDTH OF SPECIMEN: 0.06 m
THICKNESS OF SPECIMEN: 0.001m
TESTING AND RESULT
53. J. T. P. Yao and W. H. Munse, report SSC- 137, University of
Illinois, Urbana, Illinois under Department of the Navy.
P. W. BEAVER, MULTIAXIAL FATIGUE AND FRACTURE.
Vitaliy Kazymyrovych, Very High Cycle Fatigue of Engineering
Materials, Department of Materials Engineering, Karlstad
University SE-651 88, Sweden, Karlstad University Studies
2009:22, ISSN 1403-8099, ISBN 978-91-7063-246-4.
M. Marini and A. B. Ismail, Torsional Deformation and Fatigue
Behavior Of 6061 Aluminum Alloy.
REFERENCE
54. Gajendra Singh Rathore1, Upendra Kumar Joshi2,Issue 3,
Vol.2 (May 2013).
M.L. Roessle 1, A. Fatemi , Strain-Controlled Fatigue
Properties of Steels and Some Simple Approximations,
Department of Mechanical, Industrial, and Manufacturing
Engineering, The University of Toledo, Toledo, Ohio 43606,
USA,Received 20 February 1999; received in revised form 5
August 1999; accepted 4 February 2000.
Jun Zhang, M.S, Study on Fatigue Life and Fracture
Toughness of Sheet Metal after Laser Forming, Washington
State University,School of Mechanical and Materials
Engineering, December 2003.
REFERENCE