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Thank you,
but the fracture energy is too high because it is a Fiber Rinforced Concrete so I can't low it.

Hi,
I have built this model but it gives me error saing "invalid number of nodes or element type". Actually I am not able to chatch where is the problem in the model.

I attached the model.
Thanks in advance

Regards
Antonella

Thank you all!

Regards
Antonella

Hello,
I have a problem with the analysis: I have chosen a parallel displacement control which requires a "point control" set by "selection set". I have identified as selection set the midspan bottom point and I input it in the analysis (as I have already done for similar case study) but I still ...

[quote=marafini.f post_id=4551 time=1636551631 user_id=2956]
Dear Antonella,
the singularity occurs because you are using a truss element and discretize it. The node of the bar that is created by the mesh and are not on the extremities are free, so your model is singular.



You can try using a ...

Yes, sure!

Thanks in advance
Antonella

Dear STKO,
I have to model an unbonded cable. My idea is to constrais the inital point of the bar to the concrete body by means of an "node to element" interaction and a "edof" constrains, but the analysis doesn't run because it says that the matrix is singural. I have also to precise that the bar ...

Yes, I will do it.

The problem with snap back still remains. I don't understand the regolarization because in precedent post you told me that setting autoregolarization I don't have to adjust them with mesh size but just pay attention to units.
Thanks for your support
Antonella

In the model you sent mesh size is around 15mm. Anyway the reasoning is always the same. If you use the autoregularization you need to normalize the value you get from the stress and strain experimental relationship, in reference to the length of your specimen, so that STKO can relate it to the ...

Dear STKO,
I'm modelling a prestressed beam made of high performance fiber reinforced concrete with fcm=120MPa. I set the model as what I have done during the calibration phase but the analysis, even with a mesh of 1mm, keeps giving the snap back error.
I attached the model.
Thank you
Antonella