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..

Sketch stress-strain diagram for mild steel, Sketch stress-strain diagram f...

Sketch stress-strain diagram for Mild Steel in tension and also describe the important points. Also draw stress-strain curve for cast Iron, concrete and for elastic rubber only.

Define boot strap air evaporative system, Define the following : (a) Boo...

Define the following : (a) Boot Strap Air Evaporative System (b) Simple VCR System (c) Advantage and disadvantage of VCR system over Air Refrigeration System (d) Reduce

Draw spike, descripyion

descripyion

Machine drawing, Sketch neatly two views of a footstep braring for supporti...

Sketch neatly two views of a footstep braring for supporting a 50mm diameter vertical shsft. Give important dimensions

Analyse the beam, Analyse the beam: Analyse the beam illustrated in Fi...

Analyse the beam: Analyse the beam illustrated in Figure and draw the SFD, BND & thrust diagram. Situated the point of contraflexure, if any. Figure Solution

Determine the resultant of the loads, Determine the resultant of the loads:...

Determine the resultant of the loads: A system of loads acting on beam is shown in the figure given below. Determine the resultant of the loads. Sol.: Let R be resultant

Welding variables-welding current, WELDING VARIABLES The following major ...

WELDING VARIABLES The following major process variable play an important role in shaping the weld bead and the resultant weld metal in submerged arc welding: a. Welding cu

What will happen if air filter is not used?, (a) What will happen if air fi...

(a) What will happen if air filter is not used? (b) What are the components of an air filter? (c) What precautions should be followed while cleaning the air filter? (d) What grade

Stress analysis, Figure shows rough sketch of a selected representative cri...

Figure shows rough sketch of a selected representative critical part of a "Quick Coupler" (of an earth moving equipment) made with cast steel.  You need to perform FEA analysis to

Mechanical material requisition, The Mechanical Engineer/Specialist shall p...

The Mechanical Engineer/Specialist shall prepare Material Requisitions for all required mechanical material and equipment. The format for all requisitions shall be in accordance w

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