Reply To: Seismic analysis of a water filled tank

[peteroznewman]

pgl mentioned in his post above that water can be modeled as a solid if the tank is full.

I used that method in a model built to study the stress in a plastic tube filled with water when it hits the floor from a 15 inch (38 cm) drop height. Though many people think of Explicit Dynamics when a drop test simulation is needed, I didn't have a license at that time, but I had a Transient Dynamics license so I used the implicit solver to run the model and the results were excellent.

 Here are the water properties I used.

See this discussion for more information on this model.