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..

What do you mean by heat transfer, What do you mean by Heat Transfer ? Comp...

What do you mean by Heat Transfer ? Compare (i) Work done with Heat Transfer (ii) Thermodynamics with Heat Transfer. State whether Heat Transfer is a path function or state functio

Describe shear force and bending moment, Describe the following terms:- ...

Describe the following terms:- a) Shear force and bending moment b) Concentrated load, Uniformly varying load and Uniformly distributed load c) Beam & Types of beam. d)

Define phase, Define Phase. A phase is a quantity of matter that is hom...

Define Phase. A phase is a quantity of matter that is homogeneous during in chemical composition and physical structure. Determine if the matter is all gas, all liquid or all s

Illustrates about the need for reinforcement, Illustrates about the need fo...

Illustrates about the need for reinforcement? NEED FOR REINFORCEMENT Concrete is economical and durable and is currently universally utilized for footings. Plain concrete is

Calculate the length of plastic deformation, Calculate the length of plasti...

Calculate the length of plastic deformation: Calculate the length of plastic deformation along 45o in case the applied stress is 63.25% of yield stress in the plate of abov

Conical section, expression for elongation of bar of conical section under ...

expression for elongation of bar of conical section under the action of axial force p whenit tapers from d1 to d2 over a length

Physics, what is the advantage of fan

what is the advantage of fan

Find out the forces in the members of the tower, Find out the forces in the...

Find out the forces in the members of the tower: Find out the forces in the members of the tower. Solution By symmetry, ∠ AFG = ∠ AGF = θ and HG = 7.5 m; while AH = 3

Elastomers, define elastomer.explain in details?

define elastomer.explain in details?

Open and closed position of the armature and flux linkage, Q.   For an elec...

Q.   For an electromagnetic system, show that the energy stored in a magnetic field is equal to the area enclosed b/w magnetization curves for open and closed position of the armat

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: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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