MSE 556-601
Test 2
Class part
ID:
1.
Show that as 0, the Halpin Tsai equation reduces to isostress condition
and as infinity, Halpin-Tsai equation reduces to isostrain condition.
See the class notes.
MSE 556
Final Examination
ID No:
Question 1 is compulsory. Answer any 3 questions out of the other 4. Make your
answers short. If you answer the fourth question, it will carry bonus points of 10. Form
MSE 556
Final Examination
ID No:
Answer any 4 questions out of 5. Make your answers short. No more than 10 lines for
each part. All parts carry 12.5 points.
Q1. (a) Derive the Turners formula for ther
MSE 556-651
Test 3
Class Part
ID:
Q1. Draw the variation of axial stress in the fiber and the shear stress at the
interface when (a) l<lc, (b) l=lc, and (c) l>lc.
Q2. Show by means of a diagram, the d
MSE 556-601
Test 3
Class Part
ID No:
This part is close book and formulae pages from the resources section may be used.
Time: 2:30 hours
Q1. Halpin-Tsai equations are
P/Pm= (1+ Vf)/(1-Vf) with =(Pf/Pm
MSE 556-651
Final
ID Number:
Answer any four questions from the first five. Question 1 is compulsory and not attempting it
will mean loosing 25 points. Question 6 is a bonus which means you will earn
MSE 556
Final
ID: (No name)
Provide short answers. Answer any 5 questions from 6. Question 3 or 4 is
compulsory but not both. Formula pages from the course website are allowed.
Q1. (a) Draw the variat
MAT 556
Test 3
ID NO:
1. (50 points)
(a) Derive an expression for the stress taken by the composite when the length of the
discontinuous fibers is greater than the critical length.
(b) Derive an expre
MSE 556-001
Test 3
Class part
ID:
Formula pages are allowed for the class tests
Q1. A symmetric laminate consists of a 3 ply lamina 45/0/45o. The Q matrix of the
zero degree ply in MPsi is given below
MSE 556-601
Test 3
Class Part
ID No:
This part is close book and formulae pages from the resources section may be used.
Time: 2:30 hours
Q1. Halpin-Tsai equations are
P/Pm= (1+ Vf)/(1-Vf) with =(Pf/Pm
MAT 556-601
Final Examination
ID No:
Provide answers with the test taken in the class. As a Take Home, answer all these questions
and provide them after one week.
Equations page provided with test 1 m
MSE 456 Test 3
Class Part
ID Number:
Time: One hour
Note: Credit for test 3 will be complete only if both class part and take part are
submitted.
Q1.
Write the equations connecting the stresses and st
Quiz #1
A lamina of thickness 2 inches is compressed by 0.02 inches. Determine the strain in the
materials coordinate system.
dUx=-0.02, dx=2, xx=-dUx/dx=-0.01, yy=dUy/dy=0, xy=0.5 xy=0
Tij for engine
Test 1
MSE 556
ID:
The pages containing formulae are allowed.
In the following laminate loaded along the off-axis, calculate the strains. Given the
moduli in the material coordinate system to be
E11=
Test 1
MSE 556
ID:
The pages containing formulae are allowed.
In the following laminate loaded along the off-axis, calculate the strains. Given the
moduli in the material coordinate system to be
E11=
Q1. A lamina ABCD with fibers oriented at 30o has been stressed to give rise to the
following stresses in materials coordinate system.
11=0.012, 22=0.0021,and 12=0.00052, all in MPsi
If the moduli in
MSE 556
Test 2
ID No:
Complete the part I of the examination in the class. Complete part II of the examination
by taking it home and submit the answer after 2 weeks. Use of the Formulae pages is
allow
MSE 556-601
Test 2
Class Part
ID No:
This part is close book and formulae pages from the resources section may be used.
Time: 2.5 hours
Q1. For a laminate with /- /- / ply arrangement with equal thick
MAT 556
Final Examination
ID No:
Answer any 4 questions out of 5. Bonus question is optional and
addition to improve the scores. Formula pages are allowed.
1.
Given the following values in Mpsi, deter
MSE 556
Class Part 2
ID:
Give short answers.
Q1. Derive Turners formula for thermal expansion coefficient of a composite.
See the class notes.
Q2. Show that volume fraction of voids Vv in a composite
MSE 556
Class Part 3
ID:
1. Explain the following terms in 2 lines
(a) Wake toughening
(b) Crack bridging
(c) Crack arrest
(d) Crack diversion
(e) Transformation induced toughening
2. Draw the stress-
MSE 556-601
Test 1
Class part
ID number:
Formula pages from the course site are allowed to be used in this test. Time: 1 hour and 15
minutes.
Q1.
Figure 1
Determine the stress components in material c
MSE 556-651
Final
ID: (No name)
Provide short answers. Answer any 5 questions from 6. Question 3 or 4 is
compulsory but not both. Formula pages from the course website are allowed.
Q1. (a) Draw the va
MSE 556
Test 1
ID Number:
The formulae pages given in the course locker site and a calculator are allowed during the
examination. Time: 75 minutes
Q1. A square unidirectional composite with all dimens
MSE 556
Test 1
ID:
Formulae sheet provided by the instructor my be used.
A lamina of width 2 inches in the x-direction is compressed by 0.02 inches. Determine
the components of stress that need to be
MAT 556
Final Examination
ID No:
Answer any 4 questions out of 5. Bonus question is optional.
1.Given the following values in Mpsi, determine the Qb values of the lamina with fibers
oriented at 45o Qb
Test 1
MSE 556
ID:
The pages containing formulae are allowed.
Q1.
A lamina with fibers oriented at 45 degrees to X-axis is stressed to a magnitude of o as
shown in the figure below. The elastic moduli
MSE 556-601
Test 2
ID No:
Formulae page from the course web site may be used.
Class part: Return the test with your answers. Keep a copy for your take home
examination.
1. Show that in the Halpin-Tsai
MSE 556
Test 2
ID#
Q. A lamina is subjected to loading condition described below. Determine the failure
stresses using the maximum stress theory and Tsai-Hill theory for =10 o and
=-10o. Write your c
MSE 556
Quiz #2
Describe two types of laminates for which the shear coupling ratio is zero. For
these two laminates, determine if extension-bending moment matrix vanishes or
not. Show the result by co