Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy.

Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our Privacy Policy and User Agreement for details.

**Scribd will begin operating the SlideShare business on December 1, 2020**
As of this date, Scribd will manage your SlideShare account and any content you may have on SlideShare, and Scribd's General Terms of Use and Privacy Policy will apply. If you wish to opt out, please close your SlideShare account. Learn more.

Successfully reported this slideshow.

Like this presentation? Why not share!

- Tensile Strength by VICTOR ROY 5050 views
- Stress strain curve by Mazadul Hasan 14288 views
- Shear stress strain curve & modulus... by Pixy Afsana 35477 views
- Group presentation for tensile test... by Prajwal Vc 37071 views
- Mechanical Properties of matter by physics101 19666 views
- 3 strain transformations by Lisa Benson 3090 views

4,750 views

Published on

this slide wil describe the various mechanical properties of metals like aluminium steel b

Published in:
Engineering

No Downloads

Total views

4,750

On SlideShare

0

From Embeds

0

Number of Embeds

7

Shares

0

Downloads

101

Comments

5

Likes

8

No notes for slide

This material is favoured in the music industry since the material can be worked into complex shapes and retain an attractive finish.

Higher UTS than aluminium

- 1. PBL PROJECT FUNDAMENTALS OF MANUFACTURING PROCESSES MEE 205 TOPIC : COMPARATIVE STUDIES OF MECHANICAL PROPERTIES OF DIFFERENT MATERIALS GUIDED BY PROF. DEIVANATHAN R PREPARED BY: SHUBHAM KUMAR 12BME0146 SANDEEP KUMAR 12BME0491 ABHISHEK CHANDRAKAR 12BME0444 ABHINAV PATHAK 12BME0514 GAURAV GOYAL 12BME0086 AMITESH GAVEL 12BME0081
- 2. OBJECTIVES To find and study the mechanical properties of materials and compare them by plotting the graph. Materials are -: Brass Mild steel Aluminium
- 3. Tensile strength->it is the maximum stress that a material can withstand while being stretched or pulled before failing or breaking. Tensile strength is the opposite of compressive strength. Hardness ->it is a measure of how resistant solid matter is to various kinds of permanent shape change when a force is applied. TYPES OF MECHANICAL PROPERTIES
- 4. CONT… Ductility-> It is a solid material's ability to deform under tensile stress; this is often characterized by the material's ability to be streched. Young's modulus-> It is defined as the ratio of the stress along an axis over the strain along that axis in the range of stress in which Hooke's law holds.
- 5. WORK PLAN We will take these three materials, measure their mechanical properties using respective instrument as mentioned above. We will plot the graph of properties these materials and do their compare their strength. We will study the importance of each material and its importance in different fields manufacturing industries.
- 6. Force, F (N) THE TENSILE TEST Plastic Deformation Elastic Deformation Elongation, Dl (m)
- 7. Equations F A Stress In Pa or N.mm2 L D Strain 0 e L No units
- 8. Elastic Behavior Hooke’s Law Ee E= Young’s modulus A measure of stiffness
- 9. Tensile Test Tension test is carried out; to obtain the stress-strain diagram, to determine the tensile properties and hence to get valuable information about the mechanical behavior and the engineering performance of the material. The major parameters that describe the stress-strain Curve obtained during the tension test are the I. Tensile strength (UTS) II. Yield strength III. Elastic modulus (E) IV. Toughness
- 10. PROPERTIES OBTAINED FROM TENSILE TEST Young's Modulus: This is the slope of the linear portion of the stress-strain curve, it is usually specific to each material; a constant, known value. Ultimate Tensile Strength: This is the highest value of stress on the stress-strain curve. Ductility: It is the measure of the plastic deformation that has been sustained at fracture point. 10
- 11. ALUMINIUM
- 12. GENERAL PROPERTIES General information Chemical formula: Al Molecular weight: 26.98 It is the second most malleable metal and sixth most ductile. Composition 1000 series (Al, Si) 3000 series (Al, Mn, Cu, Mg, Si, Fe) 5000 series ( Al, Mg, Mn, Si, Fe, Zn) 8000 series (Al, Sn, Ni, Si, Fe)
- 13. PROPERTIES OF ALUMINIUM Physical Properties Density: 2.7 g/cm3 melting point : approx 5800C Mechanical properties Young's modulus - 45-72 GPa Poisson's ratio - 0.33 Tensile Strength - 70-360 MPa Hardness- Vickers - 30-100 Hv Yield Strength - 30- 286 MPa Compressive strength – 30- 286 MPa Elongation - 2-41 %
- 14. TABLE OF RESULTS EXPLAINED
- 15. GRAPH (ALUMINIUM)
- 16. CALCULATIONS Ultimate Tensile Strength= 97 MPa Yield Point = 74 MPa Modulus of Elasticity= 48.69 Gpa *As per the Graphical Values.
- 17. COMPOSITION Alloy (copper with 5-40% zinc)
- 18. PROPERTIES Young’s modulus 90- 110 GPa Yield strength 95- 500 MPa Tensile strength 310- 550 MPa Elongation 5-60 % Vickers hardness 65- 220 HV
- 19. Table of results explained
- 20. GRAPH(BRASS)
- 21. CALCULATIONS Young’s modulus is the gradient of the straight line Modulus of Elasticity= 105.33 GPa Yield Strength= 158 MPa Ultimate Tensile Strength= 220MPa *As per the Graphical Values
- 22. COMPOSITON AND PROPERTIES OF MILD STEEL Also known as Low-Carbon Steel. Composition:- • Ferum: 99.70%wt - 99.98%wt • Carbon: 0.02%wt – 0.25%wt General properties: • Density: 7800 – 7900 kgm-3 Mechanical properties: Modulus of Elasticity 100 – 150 GPa Yield Strength 130 – 200 MPa Tensile Strength 345 – 580 MPa Elongation 26% – 47% Hardness 107.5 – 172.5 HV
- 23. THE RELATIONSHIP BETWEEN STRESS AND STRAIN FOR MILD STEEL
- 24. CALCULATIONS Modulus of Elasticity= 105.8 GPa Yield Strength= 140 MPa Ultimate Tensile Strength= 155 MPa *As per the Graphical Values
- 25. 7.1 WHY DO WE COMPARE? 28 •To develop a standard, with which to compare others. •Allows trends to be identified and plotted. •To determine how are results might effect real life applications. •It allows us to predict what might happen in later experiments (e.g. What a combination of the materials might exhibit).
- 26. OUR RESULTS
- 27. 7.3 INTERPRETATION It is clear from the graph that.... The three metals behaved in very different ways. Aluminium was the softest, more ductile of the three samples. Brass behaved in a less ductile manner. Order of toughness as obtained from graph: Mild Steel < Aluminium < Brass The ultimate tensile strength (UTS) varied greatly between metals. 30
- 28. 7.4 APPLICATION- ALUMINIUM Low energy plastic deformation. Low Density- Lightweight. Highly recyclable. 31 Key properties:
- 29. Key Properties: 32 7.4 Application- Brass • Relatively Low Density. • Higher elastic/plastic limit than aluminium, however still relatively low- malleable. • Corrosive/tarnish resistant due to its zinc content. • Decorative.
- 30. Key Properties: 33 7.4 Application- Mild Steel • High UTS • Very “stiff”- ideal for a wide range of civil applications. • Cheap, carbon content.
- 31. THANK YOU

No public clipboards found for this slide

Login to see the comments