Defining Cyclic Deterioration Parameters for IMK Model

[rgrosa]

Hi all,

I am trying to use the IMK deterioration model in the research that I am doing and was wondering if anybody could give me some tips on defining the cyclic deterioration parameters. I have reviewed related literature and it seems that they need to be experimentally found. Is there a general equation that defines these? Are they equal to the 'Λ' value that can be determined using section properties?

Any guidance would be appreciated. I am an undergraduate so a lot of the information I am working with is somewhat foreign to me. I'm picking up on it pretty quickly, but determining these four parameters is proving to be somewhat complicated.

Thank you for any help you can provide!

[rgrosa]

Everybody,

I have talked to Dr. Lignos and got confirmation that these lamda values are the reference cumulative plastic rotation value of the section. I do not require any further assistance but figured I would post this here for those who may have similar questions.