501231, Materials Science
Elsadig
Mahdi
2014
QATAR UNIVERSITY
DEPARTMENT OF MECHANICAL & INDUSTRIAL ENGINEERING
501231
Materials Science
COURSE OUTLINE
February 14
By
Prof. Dr. Elsadig Mahdi
501231,
MechanicalProperties
Highlights,Motivationand
CriticalConcepts
Almost all engineering materials are subjected to external
loads in service, and even during processing.
What mechanical engineers need t
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week10-b
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Impact Exampl
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week11-a
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Quiz 5
Rotat
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week10-c
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Ch. 15 Kinema
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week10-a
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Impact
Dr. W.
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week9-a
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Principle of I
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week9-c
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Midterm
Conse
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week8-b
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Conservation o
CHAPTER 5:
DIFFUSION IN SOLIDS
ISSUES TO ADDRESS.
What is diffusion?
How does diffusion occur?
How does diffusion depend on structure and
temperature?
How can the rate of diffusion be predicted fo
MechanicalProperties
METALS
ModulusofResilience
Resilience is the capacity of a material to absorb energy
whenitisdeformedelasticallyandthen,uponunloading,to
havethisenergyrecovered.
Theassociatedpr
MATERIAL
S SCIENCE
INTRODUCTIO
N
Materials: Science; Engineering;
Structures science involves
Strictly
speaking,
materials
investigating the relationships that exist between the
structures and propert
CHAPTER 9: PHASE DIAGRAMS
ISSUES TO ADDRESS.
When we combine two elements.
what equilibrium state do we get?
In particular, if we specify.
-a composition (e.g., wt%Cu - wt%Ni), and
-a temperature (T
Fatigue Failure
FATIGUE CONSIDERATION IN
DESIGN
In this section we will be discussing on
design aspects related to fatigue failure,
an important mode of failure in
engineering components.
Fatigue fail
A screw dislocation has burger vector parallel
to the dislocation line.
An edge dislocation has burger vector
perpendicular to the dislocation line.
1
Chapter 4-
Mixed Dislocations
Many dislocations h
Defects
The crystals are called perfect when all unit cells consist of
the ideal arrangement of atoms or molecules and all cells
line-up in a three dimensional space with no distortion.
In reality, so
Class activities
Crystal Structures
1a
The majority of common metals have either
a Face Center Cubic Structure, Fig la, a
Body Centered Cubic Structure, Fig.lb or
an Hexagonal Close Packed Structure
F
CHAPTER 3: CRYSTAL
STRUCTURES &
PROPERTIES
ISSUES TO ADDRESS
q
How do atoms assemble into solid structures? (for now, focus on metals)
q
How does the density of a material depend on its structure?
q
W
CHAPTER 4:
IMPERFECTIONS IN SOLIDS
ISSUES TO ADDRESS.
What are the solidification mechanisms?
What types of defects arise in solids?
Can the number and type of defects be varied and controlled?
How d
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week8-c
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Principle of I
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week7-c
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Work of a forc
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week4-a
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Quiz #1
Curvi
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week3-a
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Rectangular Co
GENG 210:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week4-c
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Newtons Second
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week2-a
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Determination
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week1-b
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Introduction o
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week2-c
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Uniform Rectil
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week1-a
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What is Mechanical Engineering? (1)
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week1-c
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Dynamics
Kinema
GENG 222:
Dynamics
Dr. W. Jong Yoon
Mechanical Engineering
Qatar University
Spring 2014
Week5-a
Dr. W. Jong Yoon, Qatar University, GENG 222
(Dynamics), Spring 2014
What did you learn?
Newtons Second