Hi,
I set up a simple test case to understand COMSOL and FE simulation, however, could not understand the result.
2D, linear elastic material in solid mechanics interface, stationary study step. a block of aluminium. Initial location of this block is (0,0)
two study steps:
1st step, move the block for 1 meter with "prescribed displacement". location of the block is (1,0);
2nd step, set the result of the first step as initial "values of dependent variables", and remove all the boundary conditions.
to my surprise, the result of the 2nd step showed that the block moved back to (0,0) instead of staying at (1,0).
Could someone explain me the drving force of this movement? Is there any way to keep the block stay at (1,0) without any boundary condition except for "free"?
the .mph file has been attached.
best, Chi