Problem Description
The material parameters of a foam material must be determined from experimental results, namely the resultant reaction force exerted by a cubic sample on a rigid base.
Fig. 1 - Foam material on rigid base
The ''experimental'' resultant forces were generated from a LS-DYNA run with the parameters E=10⁶ and Y=10³. Samples are taken at different time steps :
Time [ms] | Force [N] |
2 | 10000 |
4 | 13000 |
6 | 15000 |
8 | 17000 |
New points illustrated by this example:
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Design Variables:
Design formulation:
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Possible approaches for the problem solution |
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