August 20, 2024 at 7:53 pm
Arnau V
Bbp_participant

Hello Reno,

Thank you for your message, below I am replying each of your messages.

I am using LS-Dyna 11.2, double precision and in SMP configuration. In theory, I am only running the essential keywords for this model (I have followed the tutorial on the LS-Dyna examples webpage "Intermediate: FSI tutorial flap"), and have only changed the mesh input for both the Fluid and Structure, as well as adding the fixation constraints on the correspondent nodes. However, I have used a laminate material MAT58 for the whole structure. Tomorrow first thing in the morning will try to use a common Aluminum with MAT1 and check if I get the same error.

I also tried to separate the model, but I have only run the ICFD part. The ICFD simulates successfully both explicit and implicit. I will also try to run the structural part alone, but I am not sure how to do it as there are no loads applied to the model.

I will keep you updated regarding the material changes and the strucutre-only simulation. In the meantime, I will be very grateful to hear from the developer.

Thank you very much for your time Reno.
Arnau