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Hi

Definetely the *Hysteresis command does not work together with Uhyper subroutines... I have tried.
I believe the best approach to test a newly developed hyperelastic model under cyclic...

Professor

I will try to combine the card *HYSTERESIS and an UHYPER subroutine in order to model hysteretic behavior of my model.
Once I conclude whether it works or not, I write back to this...

Hello everybody

Does anyone know if the command *HYSTERESIS can be used when analysing a model through a UHYPER subroutine?
I have a newly developed hyperelastic model (which I can only simulate...

Dave

There is a way in Ansys through which you can write your own material, with its own strain energy potential, but I don´t think you should lose time with it right now.
I don´t remember the...

Dave

I didn´t understand you were going to perform the same analysis as them. In this case, you can use their constants without problem.

Felipe Stumpf

Hi Dave

When analyzing hyperelastic materials, such as elastomers and biologic tissues, much care must be taken regarding their stress-strain relationship. In elastomers, for example, details such...

Hello Dave

It is highly recomended that you don't use someone else's constants to model your particular material, even when treating similar material (such as natural or silicon rubber)....

Thank you Mr. Bergstrom, I will check your software.

So, unless I write my own software, the only way for me to get these hysteretic parameters is to obtain them using MCalibration? Doesn´t Abaqus...

Hello, thank you guys for the replies.

I guess that my next move is to write this UMAT subroutine... Does anyone have tips about writting it? Which parameters must I be interested in, what are the...

Thank you Mr. Bergstrom, I have actually already given up of this idea. I am not studying a specific material, but only tensting my model.

Felipe Stumpf

Hello everyone

I want to test some newly developed hyperelastic model under cyclic loading, since they have already showed excelent behavior during monotonic loading. These initial tests were...

Hello everybody.

Is it possible to define, in ABAQUS, a hysteretic behavior to a hyperelastic material using test data or it can only be done by manually entering the parameters S, A, m and C ?...

Everyone

I was wondering if I can use subroutines UMAT or UHYPER to model hysteresis in my newly developed hyperelatic model. Have anyone ever tried this? Does anyone know if there is a way of...