In a Concrete Face Rockfill Dam, the impermeable barrier consists of many slabs that rest on the upstream slope, and on the plinth at the toe, as well as between slabs in the dam-axis direction.
Modeling slip, separation and closure at these interaces is crucial for understanding the behavior of these structures.
A realistic dam may have on the order of 20-40 slabs, 15m wide, each featuring 5 orthogonal contacting surfaces, which open, slide, and compress with the dam deformation. We´ve previously modeled these using FE software with automatic detection of contact interfaces and quite robust handling of nonlinearity, separation, etc, but would like to use FLAC3D for the dynamic response. Would you consider this feasable given the contact algorithms in FLAC3D?