Coupled dynamics simulation using FAST when a blade suddently break down

Wind & Water Structural Analysis
1

Dear Dr. jason,

I want to simulate the coupled dynamics of IEA-15MW when a blade suddently break down at a specified spanwise position (say 0.5R) using FAST.

I find this kind of simulations are rarely reported in wind energy communities, and I am trying to use FAST for such simulations with some code customizations.

Now, I have two plans for blade breakup simulation using FAST:

(1) Simplyly set the aerodynamic forces and gravity force to zeros for a certain range of blade span, say 0.5R-1.0R.

(2) Reconstruct the AeroDyn mesh and BeamDyn mesh (or ElastoDyn? ) when the breakup occures.

Could you give me some advice and briefly comment on my two plans whether they correctly representing the real blade breakdown event?

Best regards,

Lin Yang.