Remove 3D elements free edges
Altair EmployeeI know someone has asked this topic before. However, all the solution I found did not work on my case.
I used 'edges' to find the free edges between two hex elements. I have tried to remove it by ' equivalence ' and by deleting the elements and creating them again. When I checked the nodes on the two hex elements. I found that there is one shared node has two ID numbers. So I also tried to replace one ID with another ID. None all these methods worked.
Please help me.
Thank you very much!
Answers
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Hi jacobier
The Edges panel functionality applies only for 2D shell elements
<?xml version="1.0" encoding="UTF-8"?>
Similar connectivity check for 3D elements can be done only in faces panel ( Tools > faces )
<?xml version="1.0" encoding="UTF-8"?>
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So does it mean that I don't need to worry about the free edge for my case?
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Actually when I used 'face' function. I found a face between the two elements. 'Equivelance' did not work as well.
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Could you show a photo?
I checked your file but don't see it
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<?xml version="1.0" encoding="UTF-8"?>
The other edges are correct. Only these two are related to connection and should be removed.
Thank you very much!
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Hello jacobier,
The left of the two masked (hidden) elements (yellow, Reissner's membrane) is at fault.
It's a degenerate hexa element, rather than a penta. Therefore, at this point, the nodes can not become equivalence.
Best Regards,
Mario
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Hi, Mario
Thank you very much! How can I solve this? I have tried deleting the element and manually making penta element, but the problem remained.
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Hello jacobier,
Delete the element and make a equivalence check (display all before).
Then you can create a new one.
Best Regards,
Mario
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After I deleted the elements and displayed all, still 0 nodes were found for equivalence. Can you try that for me, as I have uploaded the model.
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