Loading/unloading experimental test data in Ansys

[scarules2006]

Hello dear friends!
How can I input in Ansys loading and unloading data to same uniaxial test(from my rubber sample)?
Thank you!
PS: until now I needed to input only the loading data and that was simple

 

[scarules2006]

Any ideas? Thank you!

 

[flash3780]

Those tests are generally strain-controlled, right? Perhaps you want to apply a displacement to the ends of your sample as it is loaded in the test fixture?

 

[scarules2006]

Hello everybody! All my good thoughts for you in this year!
Flash, I don't understand what you are trying to tell me. Those tests are strain-stress related and yes are strain-controlled. I want to define my material in Ansys by using the unloading data too, not only the loading data. From what I understood, the usual models like Neo Hookean, Yeoh, etc can't capture the unloading behavior but in Ansys you can define your material by using the Bergstorm Boyce model, a model that can capture the complete loading-unloading behavior. I've searched in the software's help but I can't seem to find how can I use that model, because it's not available engineering data(I'm using Wokbench 15).
Thank you!

 

[scarules2006]

Any suggestion? Thank you!