DESIGN OF A 60 KN CAPACITY ELECTROMECHANICALLY POWERED TENSILE TESTING MACHINE.


DESIGN OF A 60 KN CAPACITY ELECTROMECHANICALLY POWERED TENSILE TESTING MACHINE.

TABLE OF CONTENT

Title Page………………..i

Certification……………ii

Dedication………………iii

Acknowledgment……….iv

Table of content………vii

CHAPTER ONE: INTRODUCTION

1.1 Background of the Study

1.2 Statement of the Problem

1.3    Objectives    

1.3.1 Main Objective                                                        

1.3.2 Specific Objectives                                                  

1.4 Significance of the Project

1.4  Scope of Work           

CHAPTER TWO: REVIEW OF RELATED LITERATURE

2.1 Tensile Testing Process                                                                                                               

2.2 Tensile Test Specimen

2.3  Tensile Test Equipment

2.4  Tensile Testing Standards for Metals

CHAPTER THREE: MATERIALS AND METHODS

3.1 Introduction                                                 

3.2 Materials                                             

3.3 Methods                                              

3.3.1 Material Selection                                                      

3.3.2. Power Screws                                            

3.3.3 Nuts for Power Screws                                         

3.3.4. Guide Rods

3.3.5 Gear Train - Gears, Gear Shafts and Retainers                                                        

3.3.6 Cross-Members                               

3.3.7 Base Box                                                        

3.3.8 Lower Wedge-Grip Holder                                          

3.3.9 Wedge Grips                                            

3.3.10 Bearings                                                               

3.3.11 Electric Motor and Speed Controls                                

3.3.12 Load Cell and Extensometer                                 

3.3.13 Data Acquisition Devices                               

3.3.14 Lubrication                                           

3.3.15 Maximum Deflections of Machine Parts                          

3.3.16 Selection of Manufacturing Processes   

 CHAPTER FOUR:    RESULTS AND DISCUSSION

 4.1 Working Design Drawings and Process Sheets for the Manufacture of Power

           Screws, Nuts, Guide Rods and Slotted Discs.

4.2 Working Design Drawing and Process Sheet for the Manufacture of Fixed Cross-

         Head of Tensile Testing Machine

4.3 Working Design Drawing and Process Sheet for the Manufacture of Tensile      

    Testing Machine Moving Cross-Head

4.4 Working Design Drawings and Process Sheets for the Manufacture of Tensile

      Testing Machine Base Box

4.4.1 Working Design Drawing and Process Sheet for the Manufacture of Tensile

        Testing Machine Base Box Cover

4.4.2 Working Design Drawing and Process Sheet for the Manufacture of Tensile

        Testing Machine Base Box Bottom

4.5 Working Design Drawings and Process Sheets for the Manufacture of Tensile

     Testing Machine Gear Train Components

4.5.1 Working Design Drawings and Process Sheets for Manufacture of Gears, Keys,

     and Transmission Shaft of Tensile Testing Machine

4.5.2 Working Design Drawings and Process Sheets for Manufacture of Gear      

       Retainers, and Gear Train Pillars of Tensile Testing Machine

4.6 Working Design Drawing and Process Sheet for the Manufacture of Lower      

    Wedge-Grip Holder for Tensile Testing Machine

4.7 Engineering Working Design Drawing and Process Sheet for the Manufacture of

    Machine

    Adapter Plates, Spacer, and Vibration Damping Pads for the Tensile Testing

4.8    Assembly of Tensile Testing Machine                                         

4.8.1 Assembling the Gear Train                                     

4.8.2 Assembling the Lower Wedge-Grip Holder

4.8.3 Assembling the Tensile Testing Machine                                    

4.9 Bill of Engineering Measurements and Estimates (BEME)   

CHAPTER FIVE:  SUMMARY, CONCLUSION AND RECOMMENDATION

  5.1  Summary                                                       

5.2  Conclusion                                                          

5.3 Engineering Implications of Work

5.4 Contribution to Knowledge                                      

5.5    Recommendations                                                  

REFERENCES

                                                         CHAPTER ONE

INTRODUCTION

1.1 Background of the Study

      Tensile testing, which is also known as tension testing (Horst et al, 2006), is a fundamental material  test, where a standard sample is subjected to controlled tensional loading until the material fails and fractures. The test results are generally used in materials selection in design applications, prediction of material behaviour under different types of loading other than uniaxial tension, and for quality control. Tensile properties of materials are often measured during the development of new materials and processes so that different materials and processes of manufacture can be compared (Davis, 2004).

      Tensile testing directly records the load/elongation profile of the test specimen. In particular, tensile testing measures properties such as the yield point, maximum load, and load at fracture. It also measures uniform and maximum elongation, as indices of ductility. Using these data, both the engineering and the true stress-strain curves can be plotted from which the material’s fundamental properties such as Young’s Modulus, Yield Strength, Ultimate Tensile Strength, Poisson ratio and strain-hardening characteristics can be computed using appropriate algorithms.

      For isotropic materials, the most commonly used test for obtaining mechanical properties is the uniaxial tensile test, while for anisotropic materials such as composites and textile materials, multi-directional tensile testing serves to enable the parameterization of the extent of anisotropy.

1.2 Statement of the Problem

      The dearth of necessary and needed infrastructure in the nation’s institutions of learning is glaring to all concerned. The need for students in general, and engineering students in particular, to have a firm and practical grasp of the all-important tensile test cannot be over-emphasized.

      Hence, the need to develop an instructional model of the tensile testing machine using, as much as possible, locally sourced materials, in order to bridge the gap between theoretical lectures on tensile testing and the much needed practical aspect of it.

1.3    Objectives    

      The objectives of this project include the main and specific objectives which are outlined below:                                                                             1.3.1 Main Objective                                                             The main objective of the project is the design of a 60 kN capacity electromechanically powered tensile testing machine.                                                            1.3.2 Specific Objectives                                                         The specific objectives of this project include:

(i)     Specification of the various parts of the machine.

(ii)     Specifying optimal engineering materials, from which the various parts can be made,           based on a compromise of factors such as cost, availability of materials and amenability           to locally available fabrication process.

(iii)     Production of the detailed design drawings of the machine parts as well as the assembly           drawing of the machine as a whole using AutoCAD design and modeling software.

(iv)     Contribute to the process of bridging the gap between theory and practical in the                teaching of materials testing.

1.4 Significance of the Project

       The significance of the project includes the qualitative impartation of the knowledge of materials testing to students practically, as opposed to mere theory and the attendant difficulty of comprehension.

1.4  Scope of Work    

In this project, the dual column type of a 60 kN capacity tensile testing machine, including the various parts, will be designed. The specimen-holding cross-heads, based on ASTM E8/E8M Standards, will also be specified. Accommodation will be made in the design for the critical components such as the load cell and extensometer to be purchased and fitted on the machine. These are, however, expected to be fully integrated into the machine on subsequent and further work by students. The present model design will be for uniaxial loading only, complete with compression and bending capabilities. Finally, detailed design drawings of the machine and its various parts will be produced using AutoCAD design and modeling software.

.


TYPE IN YOUR TOPIC AND CLICK SEARCH.






RESEARCHWAP.COM

Researchwap.com is an online repository for free project topics and research materials, articles and custom writing of research works. We’re an online resource centre that provides a vast database for students to access numerous research project topics and materials. Researchwap.com guides and assist Postgraduate, Undergraduate and Final Year Students with well researched and quality project topics, topic ideas, research guides and project materials. We’re reliable and trustworthy, and we really understand what is called “time factor”, that is why we’ve simplified the process so that students can get their research projects ready on time. Our platform provides more educational services, such as hiring a writer, research analysis, and software for computer science research and we also seriously adhere to a timely delivery.

TESTIMONIES FROM OUR CLIENTS


Please feel free to carefully review some written and captured responses from our satisfied clients.

  • "Exceptionally outstanding. Highly recommend for all who wish to have effective and excellent project defence. Easily Accessable, Affordable, Effective and effective."

    Debby Henry George, Massachusetts Institute of Technology (MIT), Cambridge, USA.
  • "I saw this website on facebook page and I did not even bother since I was in a hurry to complete my project. But I am totally amazed that when I visited the website and saw the topic I was looking for and I decided to give a try and now I have received it within an hour after ordering the material. Am grateful guys!"

    Hilary Yusuf, United States International University Africa, Nairobi, Kenya.
  • "Researchwap.com is a website I recommend to all student and researchers within and outside the country. The web owners are doing great job and I appreciate them for that. Once again, thank you very much "researchwap.com" and God bless you and your business! ."

    Debby Henry George, Massachusetts Institute of Technology (MIT), Cambridge, USA.
  • "I love what you guys are doing, your material guided me well through my research. Thank you for helping me achieve academic success."

    Sampson, University of Nigeria, Nsukka.
  • "researchwap.com is God-sent! I got good grades in my seminar and project with the help of your service, thank you soooooo much."

    Cynthia, Akwa Ibom State University .
  • "Great User Experience, Nice flows and Superb functionalities.The app is indeed a great tech innovation for greasing the wheels of final year, research and other pedagogical related project works. A trial would definitely convince you."

    Lamilare Valentine, Kwame Nkrumah University, Kumasi, Ghana.
  • "Sorry, it was in my spam folder all along, I should have looked it up properly first. Please keep up the good work, your team is quite commited. Am grateful...I will certainly refer my friends too."

    Elizabeth, Obafemi Awolowo University
  • "Am happy the defense went well, thanks to your articles. I may not be able to express how grateful I am for all your assistance, but on my honour, I owe you guys a good number of referrals. Thank you once again."

    Ali Olanrewaju, Lagos State University.
  • "My Dear Researchwap, initially I never believed one can actually do honest business transactions with Nigerians online until i stumbled into your website. You have broken a new legacy of record as far as am concerned. Keep up the good work!"

    Willie Ekereobong, University of Port Harcourt.
  • "WOW, SO IT'S TRUE??!! I can't believe I got this quality work for just 3k...I thought it was scam ooo. I wouldn't mind if it goes for over 5k, its worth it. Thank you!"

    Theressa, Igbinedion University.
  • "I did not see my project topic on your website so I decided to call your customer care number, the attention I got was epic! I got help from the beginning to the end of my project in just 3 days, they even taught me how to defend my project and I got a 'B' at the end. Thank you so much researchwap.com, infact, I owe my graduating well today to you guys...."

    Joseph, Abia state Polytechnic.
  • "My friend told me about ResearchWap website, I doubted her until I saw her receive her full project in less than 15 miniutes, I tried mine too and got it same, right now, am telling everyone in my school about researchwap.com, no one has to suffer any more writing their project. Thank you for making life easy for me and my fellow students... Keep up the good work"

    Christiana, Landmark University .
  • "I wish I knew you guys when I wrote my first degree project, it took so much time and effort then. Now, with just a click of a button, I got my complete project in less than 15 minutes. You guys are too amazing!."

    Musa, Federal University of Technology Minna
  • "I was scared at first when I saw your website but I decided to risk my last 3k and surprisingly I got my complete project in my email box instantly. This is so nice!!!."

    Ali Obafemi, Ibrahim Badamasi Babangida University, Niger State.
  • To contribute to our success story, send us a feedback or please kindly call 2348037664978.
    Then your comment and contact will be published here also with your consent.

    Thank you for choosing researchwap.com.