Hi,
I conducted a FEM with Millipede on a shell structure. I need to visualize and list the stiffness factors of each mesh. How can I do that?
Thanks in advance,
millipede 3d.gh (31.7 KB)
For example, I want to turn the white, gray, and white areas into numbers. Millipede gives me a stiffness factor of the whole structure between 0 -1.0. However, I need the stiffness factors of each mesh on the structure. Can you help me, please?
Hello
I search a bit but didn’t find tool in Millipede to do that. That seems a bit strange but perhaps it was not very useful! I also look the the PDF and found nothing.
You can extract brightness/luminance of the mesh color for each vertex.
millipede 3d.gh (32.8 KB)
Thank you so much, Laurent. I think I found a Millipede component called Qaud Results- Stiffness Multiplier- to get the stiffness factor of each mesh but I couldn’t understand how to use it to divide my main surface mesh into three parts. I mean I want to select a mesh separately or divide zones according to their stiffness factors. For example, we can divide whole meshes (I think there are 1200 mesh on my surface) into three: the first mesh zone includes mesh that has a stiffness value between 0-0.36, the second zone consists of mesh with 0.37-0.81 stiffness value, and the last zone for mesh value can be 0.82-1.00. Do you have an idea how to do that? I need your help.
unnamed.gh (98.5 KB)
Hello
separating a mesh in multiple parts according to the weigths on vertex is simple. Just use Mesh iso splitting. I have that in my Nautilus plugin and also surely in some script found on this discourse.
And if you want more smooth result, I have a component for that (not free)
mesh iso split.gh (109.2 KB)
I use here color luminance, but it will work with the output from “Quad Results”
Thank you so much. I think it works, but there is a problem with my intent. You are splitting mesh into subparts. I need to use rectangular mesh after dividing zones by quad results. Is there any other way to make this?
Because I will select the voxels in each zone. If you need I can send the rest part of my definition to understand what I want to do.
Hello
for sure it is possible but you must find a way to calculate the stiffness of each face.
here it is a simple mean value.
mesh no iso split.gh (62.5 KB)
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Thank you so much for your great help. It nicely works. Best regrads
@laurent_delrieu Sorry, I need to ask a last question. When I try to make multipipe my final model, it gives me an error about multipipe components. I think some lines of lattice units are overlapping. How can I fix this problem? I need your help last time.
multipipe problem.gh (269.5 KB)
I don’t know if you were joking of what.
and you have a component to remove duplicate line you didn’t use ??
And your structure will fall because tolerance for remove duplicate seems too big, like the node size.
Some advice, when there are problems like that. Review the parameters and question yourself if the parameters could have an effect.
Tolerance was not good.
NodeSize by default is 1, too big … cell size is 0.02.
Now the output look good but not the multi pipe
Search on forum why multipipe fails, I am not an expert on that. I prefer Dendro for such extreme number of lines.
multipipe problem.gh (270.6 KB)
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I clearly understand what you say. Thanks a lot!