SMA wires in LRB

[ali_hssn]

I want to model SMA wires in base isolators of a bridge. For modeling base isolators, I've used link element. But there is no facilities to employ SMA as link element beside of base isolator. accordingly, I want to model SMA in "Beam-column element type" parallel with base isolator. Is it correct? How can I model it to works well?

[ruipinho]

ali_hssn,

In a past Forum discussion (I searched the word "alloy") there seems to be a suggestion for using a Takeda model, but I guess that trying different options (considering also proposals in the literature) is the best option.

Best,

Rui

[ali_hssn]

Rui,
My question is how to use SMA in link element? Because there is no option for using SMA in link element.

[ruipinho]

Yes, correct, and that is exactly the reason why others have used phenomenological models (i.e. hysteretic response curves being) to try to model such situations.

Best,

Rui