User Account

All Pages

assigment.., Mechanical Engineering

Assignment Help:
Describe the internal structure, bonding of atoms and molecules and to understand the mechanical properties of materials.
Comprehensive understanding of properties of materials, atomic bonding of atoms and imperfections. Solution of identification of structures. Writing of an experimental report
Task 1:
One of the major aspect of material science involves the investigation of material structure. The structure of materials has a profound influence on many properties of materials.
Your Task
1. Both Diamond and Graphite are made from carbon. However diamond is considered the hardest material while graphite is brittle and slippery. Explain this difference from atomic bonding view point
2. Inconel is a corrosion resistant, tough Nickel-chromium alloy because it contains large amounts of Nickel & chromium. How does Nickel increases the toughness of the material and chromium protect the metal from corrosion?
3. Industries that manufacture racing cars prefers nickel based alloys for engine components and iron based alloys for structural parts. Justify this statement.
Task 2:
Material engineers should be conversant of various materials, their properties, manufacturing process involved, environmental issues, monetary issues and more.
Your Task
1. Which chromium plating is more eco-friendly - trivalent or Hexavalent? Justify your answer in the light of environmental issues caused.
2. Explain why tempering cycle is essentially required in the heat treatment of high tensile carbon steel and what are the consequences if tempering cycle is not carried out?
3. What are the essential criteria for selecting materials required for the following operating functions?
(a) Turbine blades which endures vibrations and saline conditions
(b) Domestic utensils used in kitchen
(c) Aircraft body to go undetected in radars
(d) Dental braces used in medical field
(e) Rocket Chambers of space shuttles.
Task 3
Ability to write an experimental report in a standard format is a key competency requirement of a Material engineer.
Your Task
1. Write an experimental report with the following aim and objectives details
Aim: The aim of this tensile test is to subject metallic materials to pulling or tensile loading and observe the mechanical behaviour of materials.
Objectives:
a) To note down various loading values applied with corresponding elongations observed and calculate engineering stress and engineering strain values using equations.
b) To plot a curve between engineering stress and engineering strain on a graph sheet and determine the modulus of elasticity of the tested materials.
c) To determine other mechanical properties such as yield strength (sY), ultimate tensile strength (UTS), fracture strength (sf), % of elongation and % of area reduction.
2. Write an experimental report with the following aim and objectives details
Aim: The aim of fatigue test is to develop an understanding on fatigue behaviour of metallic materials and predict fatigue life/stress levels of ferrous and non-ferrous materials.
Objectives:
a) To perform the fatigue test on the given specimens using the Fatigue tester and plot S-N curve
b) To determine the safe fatigue stress levels for the specimens from the S-N curve.

Related Discussions:- assigment..

Explain gated pattern, Gated pattern This is an improvement over the si...

Gated pattern This is an improvement over the simple pattern where the gating and runner system are integral with the pattern. This would eliminate the hand cutting of the runn

Modulus of elasticity, Explain Young's Modulus or Modulus of elasticity? ...

Explain Young's Modulus or Modulus of elasticity? Sol. : It is ratio between tensile stress and tensile strain or compressive stress and compressive strain. It can be denote

Epicyclic Gear Box or Wilson Gear Box, an arrangement of the wilson epicycl...

an arrangement of the wilson epicyclic gearbox giving four forward and one reverse speed of shaft D for an input speed of shaft E is shown in fig .3.in 1st gear Ii is fixed.in 2 ge

Find span of the beam, A beam is simply supported and carries a uniformly d...

A beam is simply supported and carries a uniformly distributed load of 40kn/m run over whole length or span. The section of the beam is rectangular having depth as 500mm. If the s

Kinetic inversion, kinetic Inversion In a mechanism, in a kinematic cha...

kinetic Inversion In a mechanism, in a kinematic chain one of the links is fixed. One can get different mechanisms by fixing in different links in a kinematic chain. This techn

Communication protocols applicable in holonic manufacturing , Communication...

Communication Protocols Applicable in Holonic Manufacturing System Communication amongst agents plays an essential role in the Holonic manufacturing system. Exchange of informa

Determining the number of kanban card sets, Determining the Number of Kanba...

Determining the Number of Kanban Card Sets: Example: Determining the Number of Kanban Card Sets X automotive, a company that makes muffler assemblies for the Mangalore Mo

Determine the loss of information during exchange in iges, Determine the Lo...

Determine the Loss of Information During Exchange in IGES Loss of Information During Exchange : Information would inevitably be lost when information is passed between two CAD

Follower displacement diagrams, how to draw

how to draw

Can you explain about fuel oil and dextrin, Q. Can you explain about Fuel O...

Q. Can you explain about Fuel Oil and Dextrin? Fuel Oil : It improves the mould ability of sand. Iron Oxide: It develops hot strength. Dextrin: It increases air sett

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd