damage in Hysteretic material

[aryo]

what shoul we asign for damage2 in this material? in It's formul ,how can get E(ii) and E(ult) and D2?

[vesna]

It depentds on what you are trying to achieve with your material model.

Here you can find few examples of how damage2 parameter changes the response:http://opensees.berkeley.edu/OpenSees/m ... l/4052.htm