Dear @Jason.Jonkman ,
I am preparing to use the distributed springs model for simulation of pile-soil interaction (change the source code), and model the pile in SubDyn as a structural member to its free end below the seabed.
Best regards,
Dear @Kevin.Chang .
My understanding is that the SoilDyn module has a placeholder for a distributed springs (e.g., P-Y curve) model, but that this feature has not been fully developed. If you were to use a distributed springs model (not available without a source code change), you would have to model the pile in SubDyn as a structural member to its free end below the seabed. However, SoilDyn only currently supports a coupled springs representation of the foundation, including through simple li…
Although not ideal, I understand that one option to include linear distributed springs (i.e., different linear p-y relationships along the pile) would be working with SubDyn. In this case, you should include in SubDyn the monopile (including the part below the seabed) and reaction joints with associated stiffness matrices.
Kind regards.