Hi all,
I'm trying to model a 2D cohesive layer with a zero-thickness in Abaqus (6.11.2)
The shape of the layer is a quarter circle.
When modelling this i first create a cohesive layer with a certain thickness.
I then convert the part of this cohesive layer to a orphan mesh, then edit the mesh, such that a zero thickness layer is created.
However when i want to submit the job i get the following error message:
Error in job XX: THE NODE NUMBERING MIGHT NOT BE CORRECT FOR ELEMENT YY INSTANCE ZZ
This error is given only for a certain number of elements, the other elements seem to work just fine.
How can i resolve this error? When chechking the elements with the error message, they seem to be numbered just fine and exactly the same as the other element that do not generate this error message.
Also when deleting the elements where the error is occuring for, the simulation runs just fine.
I added an .inp file where this error occurs for me:
https://dl.dropbox.com/u/21539688/FE-QM-Elem-COARSE-01b5.inp
Cohesive (zero thickness): NODE NUMBERING MIDE NOT BE CORRECT (A
hi steven,
ı am struggling with the same problem. i know it is somehow related to sweep path, but could not get the exact answer.
have you been able to get the answer?
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Node numbering error with zero thickness cohesive elements
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Cohesive (zero thickness): NODE NUMBERING MIDE NOT BE CORRECT (A
hi frank,
i was able to check the answer at last.
but the answer is not a complete answer. problem is still open !
thanks for your support
regards
In reply to Cohesive (zero thickness): NODE NUMBERING MIDE NOT BE CORRECT (A by hgulasik
hi steven,
hi steven,
ı am struggling with the same problem.
i use python to build the zero thickness cohesive elements, some cohesive elements is fine but the others have the same problem as you.
have you solved this problem?
In reply to hi steven, by Yufei
Hi,
Hi,
Please check the stacking sequence of all your cohesive elements. All elements should have the same stacking sequence. Also flipping the sweep direction during meshing solves the "node numbering might not be correct" error for me.
nothing to do with the
nothing to do with the stacking. to solve the problem, u should give a thickness to the cohesive layer in the curved regions. generally there is no problem with the straight regions
cohesive element:NODE NUMBERING MIGHT NOT BE CORRECT FOR ELEMENT
Hi,
I'm still stuggling with this problem. Using an in-house matlab code, I added the cohesive elements in the triangle mesh grid that had been produced in Abaqus prior. An error message lists as:
THE NODE NUMBERING MIGHT NOT BE CORRECT FOR ELEMENT *** INSTANCE ***
I double checked all the cohesive elements with the error message and didn't find any problem with them. They are all connected by 4 nodes in a counter-clockwise direction. And I also tried the ways proposed by all you and it is still unresolved.
Is this somehow related to the way that the triangle mesh was made? Because the sweep technique seems not to be activated for a 2D complex region with the curved geometry.