ABAQUS Explicit Error

[Abdelrahman993]

Hello,

I'm trying to model the failure of steel lattice tower under dynamic load using ABAQUS EXPLICIT
The tower is modelled using beam elements B31
The job is always aborted with an error (Unknown global id: -364
Excessive rotation of nodes in node set ErrNodeExcessRotation-Step4)

Can anyone help with this error?

Thanks

 

[FEA way]

Locate these nodes in odb and try to find out what happens to them before the analysis stops (use deformed shape and contour plots). There are several possible reasons but I would check interactions and boundary conditions in this location.

 

[Abdelrahman993]

Thanks for your reply

There are no interactions and boundary conditions in this location, while the deformed shape does not show anything abnormal before the analysis stops

I hope I can understand the meaning of this error to solve it

 

[FEA way]

More details about this analysis (including screenshots of the model and results) are necessary to provide specific advice. For now, I can generally say that such errors may be caused by a very large load, potentially suggesting the need for a material failure model along with element deletion.