RM
Ansys Employee

HiĀ 
here is the list of Mechanical elements supported by FSI with System Coupling, https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v231/en/ans_cou/Hlp_G_COU1_2.html%23loadtransystcoup

What elements are used by SMA? Check if they are supported by FSI.

Hope this helps you!