Homework Set 1
Use the following stress tensor for problems 1 4. Stresses are given in GPa.
" 2.0 &4.0 3.5 $
"! $ = ' &4.0 &3.0 1.5 (
# % '
(
'# 3.5 1.5 1.0 (%
1. Determine the principal stresses and the principal axes directions.
2. Determine the stress
What makes you stronger?
http:/www.youtube.com/watch?v=Xn676-fLq7I&ob=av3e
1
Climb
Vacancy-assisted dislocation climb
Bowman, Mechanical Behavior of Materials (2004).
2
Climb
Bowman, Mechanical Behavior of Materials (2004).
3
Climb
Climb of dislocations f
!
Homework 8
Catherine Kang!
Steven Lofy!
Jin Zhu!
Kaitlyn Mawhinney
Problem 1: Gaussian Elimination and Elementary Row Reduction
Write and row reduce (by hand, you can check with MATLAB) the augmented matrix to
find whether the given set of equations has
Homework 4
Jin Zhu
Kaitlyn Mawhinney
Catherine Kang
Problem 1: Forward and Backward Difference Approximations (Chapra, Problem 4.16)
Use forward and backward difference approximations of O(h) and a centered difference
approximation
of O(h2) to estimate th
Ceramics and Composites
Lets first review some simple structures
21
BCC
Body Centered Cubic
(BCC) structure
CN=8
APF = 0.68
Examples: Fe, W, Cr
Note: the same atom
at the center as at the
corners!
Figure source unknown, taken from previous EMA 3050
Homework 3
Catherine Kang
Kaitlyn Mawhinney
Jin Zhu
Problem 1: Loops and Conditional Statements
Try to work out what value of x the following code returns (initially without running it).
Draw a flow
chart explaining the code.
x = 1;
if tan(73*pi*x/4) >= 0
1/12/17
Introduc.on: Importance of
Numerical Analysis
A Real Example
Mathema.cal Methods for Materials
Engineers
MSE 260
Dr. Ramn R. Collazo
WideBandgaps Laboratory
Compound semiconductors
Then
Now
AlGaAs
AlN
GaN
RGB UV
InN
$3B LED market
(Cr
Exam 1 Review Topics (Study Guide)
The following topics and example problems should be reviewed for the upcoming test:
1. Mathematical Modeling and Numerical Methods (Eulers Method)
a. Chapter 1 Examples 1.1 & 1.2, Section 1.4 Case Study
i. Homework 1 Pr
CSC 113 MATLAB Sample Test 2
Part 1: User Controlled Input/Output
1. What is the output of this code?
2. What is the output of this code?
3. If x=[1 2.53 1.75] write a single line of code that prints the following
CSC113 MATLAB Sample Test 2
page 1
Part 2
Homework 2
1
Due 1/27/17 by 7 pm
Names (print, max 3 person per group):
Answer all questions. Show all calculations, define all necessary terms, and show reasoning to receive
credit. Absolutely no credit will be given for guessing! No handwritten/scanned
CSC 113 MATLAB Sample Test 2
Part 1: User Controlled Input/Output
1. What is the output of this code?
2. What is the output of this code?
3. If x=[1 2.53 1.75] write a single line of code that prints the following
fprintf( 'Number %3.1f\n', x);
CSC113 MAT
Homework 3
1
Due 02/03/17 by 7 pm
Names (print, max 3 person per group):
Answer all questions. Show all calculations, define all necessary terms, and show reasoning to receive
credit. Absolutely no credit will be given for guessing! No handwritten/scanned
Homework 1
1
Due 1/20/17 by 7 pm
Names (print, max 3 person per group):
Answer all questions. Show all calculations, define all necessary terms, and show reasoning to receive
credit. Absolutely no credit will be given for guessing! No handwritten/scanned
Homework 4
1
Due 02/10/17 by 7 pm
Names (print, max 3 person per group):
Answer all questions. Show all calculations, define all necessary terms, and show reasoning to receive
credit. Absolutely no credit will be given for guessing! No handwritten/scanned
MSE 200
Test #2
ID Number:
This is a closed book test. No notes, books, or information stored in calculator
memories may be used. Cheating will be punished severely. Transfer your answers
to the scantron page and submit only the scantron with your correct
MSE 200
Test 2
ID number:
This is a closed book test. No notes, books, or information stored in calculator
memories may be used. Formulae needed for the examination are provided on the
last page. Cheating will be punished severely.
Using a pencil, fill yo
MSE 200
Test #2
ID Number:
This is a closed book test. No notes, books, or information stored in calculator
memories may be used. Cheating will be punished severely. Transfer your answers
to the scantron page and submit only the scantron with your correct
MSE 200
Test #2
ID Number:
This is a closed book test. No notes, books, or information stored in calculator memories
may be used. Cheating will be punished severely. Equations given in the last page may be
used. Be careful to transfer your answers careful
1Q1. A test bar of aluminum has a diameter of 0.505 inches. Upon applying a tensile load, the
sample exhibited 0.002 plastic strain at 1700 lb and the maximum load during testing was 3100
lb; and breaking occurred at 2200 lb. The sample diameter at fractu
MSE 200
Test 2
ID number:
This is a closed book test. No notes, books, or information stored in calculator
memories may be used. Formulae needed for the examination are provided on the
last page. Cheating will be punished severely. All of your work must b
MSE 200
Test 1
ID:
This is a closed book test. No notes, books, or information stored in calculator memories may be
used. Formulae needed for the examination are provided on the last page. Cheating will be
punished severely. Only one scantron per person.
MSE 200
Test#2
ID. No:
This is a closed book test. No notes, books, or information stored in calculator
memories may be used. Formulae needed for the examination are provided on the
last page. Cheating will be punished severely. Using a pencil, fill your
MSE200Test#2IDNumber:
Thisisaclosedbooktest.Nonotes,books,orinformationstoredincalculatormemoriesmaybe
used. Formulae needed for the examination are provided on the last page. Cheating will be
punishedseverely.Besurethatyoureadandanswerallpartsofeachquest
MSE200Test#2IDNumber:
Thisisaclosedbooktest.Nonotes,books,orinformationstoredincalculatormemoriesmaybe
used. Formulae needed for the examination are provided on the last page. Cheating will be
punishedseverely.Besurethatyoureadandanswerallpartsofeachquest
MSE 200
Test#2
ID.No:
This is a closed book test. No notes, books, or information stored in calculator
memories may be used. Formulae needed for the examination are provided on the
last page. Cheating will be punished severely.
Using a pencil, fill your a
MSE 200
Test 2
ID number:
Section #003
This is a closed book test. No notes, books, or information stored in calculator memories
may be used. Cheating will be punished severely. Be very careful to transfer your answers
on to the scan sheets because only t
MAT 200-001
Exam #1
Fall 2003
Last 4 digits of S. S. No: _
No notes, books, or information stored in calculator memories may be used. Cheating
will be punished severely. All of your work must be written on these pages and turned in.
To receive full or par
MAT 200
Exam #1
Fall 2004
Constants, equations, and other data are given on the last page of the exam.
Multiple choice (2 points each):
_A_ 1. Bonding as a 'sharing of electrons' between two adjacent atoms best describes:
a. covalent bonding
b. ionic bond