YANBU INDUSTRIAL COLLEGE
DEPARTMENT OF MECHANICAL ENGINEERING TECHNOLOGY
Assignment Cover Page
Course code
Assignment
Number
Assignment Due
Date
Program Title
ME205
2
As instructed
BS Program
Course Name
Course Coordinator
Manufacturing Processing
Prof. Mohammed N. Alghamdi
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Student Name
ID
Ibrahim Alzubaidi 441400849
Section
Student
Signature
Sf
Submission
Date
10 4 2025
MCET293 –MATERIAL ENGINEERING
Question #
1
2
3
ASSIGNMENT 1
CLOs
1.1
1.1
1.2
Marks Assigned
Marks Attained
5
5
5
Total out of 15
1. Define steady state diffusion using illustration and mathematical equation?
2. Explain the following: tensile stress, tensile strain, shear stress and shear strain?
3. Describe in details the difference between brittle and ductile failure?
Tensile stress Stretching ForcePer area for examplePulling a rope
arubberband lengthens by10 strain0.1
If
stretches
it
much
Tensile strain How
deck of cards
sliding a
parallelogram
shearstress Parallelforces like
Thinkofa rectanglebecoming a
shear
shearstrain The tilt or squishfrom
deformation before fracture
plastic
Brittlefiture
breaks suddenly for exampleglass
flat smooth fracture surface
Low energy absorption low toughness
low
Common in ceramics cast iron or materials at
YItgf.fi
temperatures
example
Significant Plastic deformationbeforefracture For
up and coneshape
stretchedmeta
pled fracture surface
High energy absorption high
Common inmetals copperaluminum andPolymers
ey Difference
toughness
deform and
Ductile materials
absorbenergybeforebreaking giving
siblewarning Brittle materials fail suddenlywith no warning