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Could you share your file to have a look?

Try this with the new absorbing boundary elements.
Note: here the time series for the base action should be exactly the velocity

The error is saying that you forgot to:

• Add the node or list of nodes
• Add the dof
• Add the result

Please refer to the recorder documentation:
https://opensees.berkeley.edu/wiki/inde ... e_Recorder

you're welcome

I have a query regarding whether there is an inherent mass damping included in the analysis when the mass is provided. No damping is automatically used by OpenSees. You have do explicitly include damping Specifically, my question is about the interpretation of these body forces. Do they correspond ...

The last components in the stress result are useful stress invariants computed on-the-fly by STKO.
Instead, the pressure in the nodal result is the fluid pressure for U-P elements

This is the script for the section cut: SectionCut.zip Now we are implementing it directly in STKO to make it more efficient and user-friendly. But in the meantime, you can use this. Note: Run the analysis asking for "force" result (i.e. forces at the element's nodes). They are necessary to compute ...

Yes only uniaxial materials

By the way, because of the inconvenience of extracting chart data in postprocessor, I decide to output data by tcl commands. However, If I run the parallel model, the data files only contain a part of the data rather than the complete content. Is there any way to record the complete data in one fil...

Let's see if this works: There is a command in OpenSees that is not documented. It's called equalDOF_Mixed , it's like the standard equalDOF, but you can couple a DOF (for example UX) to another (for example UY). Format: equalDOFmixed RnodeID? CnodeID? numDOF? RDOF1? CDOF1? ... ... RnodeID = master ...