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Dear STKO team,

I'm trying to model an infill wall. But I encountered a problem that I could not overcome.
I have completed modeling the frame system but I am having an error : the source element of the link element has a wrong family type

The error is saying that you used, as a master, some edges of your frame geometry.
edit the master selection and make sure to select only faces

Thanks a lot for ur response sir,

I corrected my mistake you mentioned. However, vertical analyzes also end without making any progress.
I think, There is a convergence problem. How can I solve this issue,

Thanks..

Hi, I could observe many things to be changed/improved in your model. I will mention a few for example,
1] cyclic load definition - you should not use the same displacement level both at the time series definition and at the load definition under condition tab.
2] material definition - implicit algorithm may give convergence issues, so change it to implex
3]gravity loading - 2e5 N/mm on the column seems to be too high, please check it. I reduced it approximately by dividing it by the respective length. You can put the exact value by doing a check.
4]I have also changed the modeling of the embedded rebars.
5] You should go for penalty constraint handler in case there multiple master and slave definitions at the same node, not the transformation constraint handler.
6] I also changed some your analysis settings. Please go through the model and check if it works fine for you, and you can modify it to suit your requirement.
7] I don't see the location of your control node and reaction nodes (cn and bn in the selection set of the model)

Attached is the revised model, which works without convergence issue, however, you need to modify the properties of materials and loading accordingly.

hi,
First of all, thank you for your help.

I change a little bit the model that you send before.


It is seen that the strain values are very high. Am I having any problems with the analysis?
What is your opinion on this sir,
Thank yu..

It is not clear to me which value you used for the strain comparison. You can explain it more clearly. In the 'section.fiber.strain', epsilon_11 should be used for the rebars, but you have shown epsilon_22 component! Please check it.

It seems that the e11 the strain of the concrete is quite high.
I dont understand also why initial stiffness values are high.
I tried to adjust the initial stiffness values by changing the material and energy parameters, but I was not successful. I also tried to model it in 2D, but I'm getting a convergence error here too. I would appreciate it if you could help me understand where I made a mistake in this model.

I would appreciate it if you could help me.

Hi, You have used UmfPack system for a parallel analysis, it is better to use a Mumps. I changed everything into 3D with shell elements. The model works fine, however you need to check the application of reference load for the displacement controlled analysis. Please refer to the attached file with revised model.

I want to thank you for your contributions to modeling sir.

Now,
I am trying to modeling infill wall, But I am encountering a convergence error.
Regarding my problem , I used DamageTC3D for masonry and I tried to change the DamageTC3D prameters in the analysis but still not able to solve the issue.

I wanna ask you is that whether the problem is the direction of local axis of each interaction.
Can you tell me if the contact is working properly.

How do I to fix it? Where do I look the error?

Thanks.