Noran Engineering, Inc. FEA Process for Composite ... - NSRP
Noran Engineering, Inc. FEA Process for Composite ... - NSRP
Noran Engineering, Inc. FEA Process for Composite ... - NSRP
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Ply Layups<br />
10000<br />
total load to failure<br />
25000<br />
stress vs ply angle<br />
sig 1<br />
sig 2<br />
9000<br />
20000<br />
sig 12<br />
shear allowable<br />
8000<br />
Y2 allowable<br />
7000<br />
15000<br />
6000<br />
10000<br />
Load (lbf)<br />
5000<br />
4000<br />
Stress Psi<br />
5000<br />
s<br />
3000<br />
0<br />
0 20 40 60 80 100<br />
2000<br />
-5000<br />
1000<br />
-10000<br />
0<br />
0 20 40 60 80 100<br />
Angle(degrees)<br />
-15000<br />
ply angle ( degrees)<br />
Previous Single Ply replaced by 0/90/-45/45/45/-45/90/0<br />
<br />
<br />
Maximum Strength is reduced, but now very predictable<br />
No Optimization! Sometimes called ‘black’ isotropic<br />
material ….<br />
<strong>Noran</strong> <strong>Engineering</strong>, <strong>Inc</strong>.<br />
<strong>Composite</strong>s May 2006 12
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