Retrofitting of damaged sandwich panels - EPAQ
Retrofitting of damaged sandwich panels - EPAQ
Retrofitting of damaged sandwich panels - EPAQ
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Wrinkling stress <strong>of</strong> PU-foam cored <strong>sandwich</strong> <strong>panels</strong> before and<br />
after reparation actions (I, II, III and IV) <strong>of</strong> artificial defects<br />
(A, B, C), results by Anton Kull, IsMainz<br />
1<br />
Simulation <strong>of</strong> a wrinkling failure<br />
Relative wrinkling stress [N/mm²]<br />
0.90<br />
0.86<br />
0.72<br />
0.74<br />
0.63<br />
0.58<br />
0.54<br />
0.48<br />
0.38<br />
Initial Test 1<br />
A before repairing<br />
A after repairing Type I<br />
A after repairing Type IV<br />
B before repairing<br />
B after repairing Type IV<br />
C after repairing Test 15 Type I<br />
C after repairing Test 17 Type II<br />
C after repairing Test 19 Type III<br />
C after repairing Test 21 Type IV<br />
1.2<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0<br />
EASIE MC, Roma<br />
September 21, 2011<br />
6
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