I am trying to estimate the time complexity of an FEM simulation, that solves the normal contact between a biphasic block and an rigid indenter.
Say the block has a mesh with N x N x M nodes and the simulation has T time steps. I would then think that the time complexity must at least be O(N^2 M T). But that is certainly far too simplistic: What influence does the implementation of the contact problem, the choice of elements, the fact that the material is biphasic, etc. have?
