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ROJECT PHASE 1
ROJECT PHASE 1
ue 03/23
PROJECT PHASE 1
Due 03/23
HAVE TO SUBMIT A REPORT
A cylindrical pressure vessel r = 2m, with
ressure and temperature loads
p essu e a
te pe atu e
oa s
P = 1MPa
T = 150 C
rains due to pressure
Strains due to pressure
/ 2
axialdirection stress
x
pr
t
Strains due to temperature
/
hoop direction stress
y
p
rt
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View Full Document rmulation of Step 1
Formulation of Step 1
Minimize
total thickness ‘t = 4 x n x t
ply
’
such that
0
t
XY
or
12
1
2
1
2
2
,
,
,0
,
tt
for
EE
E
12
12
S
G
Design Variables 
and ‘n’
(
n
–no
.
of plies of
)
Laminate – symmetric and balanced [
]
n,s
Bounds  LB – [0 1] UB – [
/2 50
]
If you go for
‘t = (4x n
1
+ 4x n
2
)x t
ply
’
/
nn
s
mple problem to check code
Sample problem to check code
For
[
]
n,s
= 45 deg n= 1
A =
1.0e+007 *
2.8329
2.1159
0
1159
2 8329
0
2.1159
2.8329
0
0
2.3295
Strains in the 45 deg layer
Due to pressure – [0.0303
0.0303
0.1395]
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This note was uploaded on 03/27/2012 for the course EAS 4240c taught by Professor Staff during the Spring '11 term at University of Florida.
 Spring '11
 Staff

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