Include triaxiality dependence in a damage evolution law

[julius83]

Hi,

I'm trying to include triaxiality dependence within the damage evolution law. In Abaqus, I can define the damage evolution law in a tabular form, which relates the damage variable, D, and the displacement. My question is whether or not can I include triaxiality dependence as an additional column in the tabular form (field variable dependence).

I do not understand very well in which way the 'field variable' dependence works.

Thank you very much!

Julio Fernández

 

[TGS4]

It should be straight-forward to do. You can check the Ductile Damage material property for how it is implemented.

 

[julius83]

Thanks for your comment. However, the problem is that the tabular form for the damage evolution law relates the damage variable (D) and the displacement. I know that additional columns can be added as Field 1, Field 2,... but I have no experience with this option. My question is how to indicate that Field 1 correspond to stress triaxiality (TRIAX), in my case.

Thanks again!

Julio Fernández