EM324
Mechanics of Materials
Instructor:
Ashraf Bastawros
Office 2347 Howe Hall
Tel:294-3039
Office hours: M 2-3PM
By appointment
Course TAs
Antonia Antoniou <antoniaa@iastate.edu>
0241 Howe Hall
Chunyu Yang
<yangchy@iastate.edu>
0238 Howe Hall
Office Hours: Monday 6-7 PM
Thursday 6-7 PM
Tuesday 6:30-9:30
2202 Howe Mech. Help
1
Course Web Page
Main:
http://www.public.iastate.edu/~em324/
Section Specific:
http://www.public.iastate.edu/~bastaw
/Courses/EM324.html
Objectives of Mechanics of Materials
- Determine the load carrying capacity
and the deformed shape of a structure.
- Manipulate the structure geometry to
obtain a fail safe design.
2
Mechanics of Materials
Experimental
Structures
Analytical/Numerical
Mechanical
component
MicroElectronics
Mechanics of Materials
3
Mechanics of Materials
Course Outline
1. Equilibrium
2. Stress (specific load)
3. Strain (specific deformation)
4. Stress-strain relationships
5. Axial Loading and pressure vessels
6. Torsional loading
7. Beam stresses and strains
8. Column Buckling
4
How will grades be determined?
- Quiz/Homework
20%
Every Wednesday 20 min Quiz
Collect two HW problems at random
- Midterms (3@ 20% ea.)
60%
- Final Exam
20%
- Exams are Closed book and notes
Letter Grades
A
>91%
C+
> 75%
A-
> 88%
C
> 70%
B+ > 85%
C-
> 68%
B
> 80%
D+
> 65%
B-
> 78%
D
> 60%
F
<60%
Will not grade to a curve
5
How to study
1. Review your lecture notes for basic concept
(10-20 min)
2. Overview the book explanation
(10-20 min)
3. Read thoroughly the worked examples
4. Solve the required HW problems
(20-40 min)
(15-30 min)
If you can not solve the HW assignment, bring your
iteration to the recitation session and show it to your
Instructor.
Rigid Body under equilibrium:
x
C
Find Reaction forces at A &B
Find all member forces
B
A
D
Section x-x
C
D
P
TCB
TCA
TDA
TCD
TCD
x
TCB
TCB
TCA
TCA
Joint C
P
6