Composite Free Size Optimization - Mass Constraint Offset
Hello CAE Enthusiasts,
Im currently trying to do a Free Size optimization on a composite model which is built on a ply based approach. After all, it seems that the Optimization is running fine. I got a feasible design after 7 Iterations and all constraints are satisfied.
However, if i import my optimized FreeSize.fem into HyperWorks again the weight is off by 22.5 %. My optimization constraint is a weight of 600 grams. As a result I got roughly 735 gramms. The objective of this optimization is to minimize weightedCompliance.
I tried several attempts to figure out what is wrong but i don`t get it. I would be glad if someone would get a hint or could take a look at the attached model.
Thanks in advance. StaySafe and greeting from Germany.
As I`m new to composite optimization I set up my model with the help of these tutorials:
https://altairuniversity.com/wp-content/uploads/2013/07/Skateboard_tutorial_Prakash_MGJuly1.pdf
https://altairuniversity.com/7167-new-tutorial-composite-optimization-of-a-formula-student-monocoque/
First I used the Material data from these tutorial and everything went fine. As I updated the MAT8 Card with my Material Data the Problem accrued. When I change it back, its still there.
I would be still glad about some help.