Hello!
I am working on a quite complicated tank mesh and would like to retrieve the Von-Mises stress results for all faces.
Karamba_VM_Stress.gh (17.9 MB)
My problem is I can’t get the same results as the Legend end values.
I have A-B-C-D solution ideas, but none of them is correct (?).
A.)
After some research I found out others struggled with this too, however their solutions didn’t work in this case:
I used the solution from this thread, but the values are not the same.
(the 3 branches refer to layers: -1/0/1,
Item 0 is the smallest, item 1 is the biggest value)
B.) Same function as in A just without scripting, and pos/neg values are considered, too.
C.) From its definition, Utilization in Karamba is: (VM_Stress/yield stress)
I assume it should work backwards: VM_Stress = Util * yield_stress
It gives a different number form either A-B or the legend .
D.) I managed to get the same result as in C with a bit modified function, but I don’t think it is correct.
Let alone the utilizaton values don’t match with the Util Legend borders either.
I am getting more and more confused although I guess the V-M Stress values should be pretty straight forward from principal stresses.
Any ideas how to get the Von-Mises stress results for every face of the mesh?
@karamba3d
Thank you!