Topic: Pull-out - Principal stress's jump
I modelled a pull-out experiment, following the ATENA's manual. To model the unbonded segments I chose to make a (rectangular) hole in the concrete, as suggested in the "ATENA-Troubleshooting 18.104.22.168".
The model works good, but doing this, there is a problem in the way the program read the principal stress at the beginning of the embedded bar. There is a big jump of value for an unreasonable value to a more expected one. I was able to improve the precision of the value whit the incrementation of the mesh near the point.
I would like to know if there is a way to prevent this without implementing the meshing or this situation is normal. Furthermore, there is a way to put a monitor point of strength of the bar?
If you prefer, please have a view of my ATENA file and the output graphics (with and without refined mesh):