I have created an Abaqus model using a Python script, the script creates the model, and defines the material, the assembly, the partitions, and the creation of sets of points, since I want to use these sets for applying force and recording history output... However, the model is for a plate 0.4*0.4*0.002 dimension with a small hole inside.
I added on each of its four faces, an additional part that should be defined as infinite elements. For that, I defined them as acoustic elements, then created a job, generated an input file, and then modified the input file to set the modified element type of these extra edges to be CIN3D8 for defining infinite material. then I imported a model from the new modified input file...
The Problem:
After importing the model from the modified input file, all point sets and related History-Output requests disappeared.
The Part of the imported model includes now Features: Orphan mesh-1
And no cells or any other partitions are there (also disappeared)
How can I add new sets again for specific coordinate points?
I get the error:
Feature creation failed.
Here is a view of the terminal commands:
>>> target_node
mdb.models['Model-12'].parts['PART-1'].nodes[3136]
>>> p
mdb.models['Model-12'].parts['PART-1']
>>> p.Set(nodes=(target_node, ), name='S1')
Feature creation failed.
To resolve this issue and successfully create a new node set, you can try the following steps:
1. Double-check the validity of the target node: Ensure that the target node with ID 3136 exists in the 'PART-1' of the 'Model-12'. You can verify this by printing out the node IDs and confirming that the target node is present.
2. Check for any conflicts: It's possible that there is already a feature with the name 'S1' in 'PART-1', which is causing the failure. Try using a different name for the node set, such as 'S2' or 'NodeSet1', to avoid any naming conflicts.
3. Verify the correct syntax: Ensure that you are using the correct syntax for creating the node set. In Abaqus, the node set creation syntax typically looks like this:
````
p.Set(nodes=(target_node, ), name='S1')
```
Make sure that you are passing the target node as a single-element tuple `(target_node, )` and using the correct method for creating sets in your Python script.
4. Check for any model modifications: If you have made any modifications to the imported model after importing it from the modified input file, such as creating additional parts or modifying the existing geometry, it's possible that these modifications are causing conflicts or issues when creating the node set. Verify that there are no conflicting modifications that may interfere with the node set creation.
Hope it helps
Mohammad Imam
Thanks for your answer, I checked actually every point you mentioned already. But that was not the problem
However, I got it to work finally by doing the following trick:
Solution:
>>> target_node
mdb.models['Model-12'].parts['PART-1'].nodes[3136]
>>> target_node_label = target_node.label
>>> p
mdb.models['Model-12'].parts['PART-1']
targetNodeRange = p.nodes[target_node_label-1:target_node_label]
>>> p.Set(nodes=(targetNodeRange , ), name='S1')
So, in summary, one will need to take a range including the index of the target node, then a mask will be generated including that node, which will be recognized by the Set constructer.
I hope this will help anyone who faces this problem.
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