Hi,
I am using FEAP 8.3.
I am trying to carry out a FINITE STRAIN calculation with two steps. In each step not only the amplitude
of the load changes (in that case I can work it out with the Load groups) but the boundary
conditions (i.e., BOUN, ... restrained and unrestrained) change.
For instance, suppose that :
1) step 1, I block node 1, dof:1 and want zero force (unblocked) dof:2
and
2) Step 2, I want to release dof:1 (zero force) of node 1 and block dof:2 of node 1
but re-starting my calculation from where it was left.
That for instance is required in complex, non-proportional loading paths (like first, tension and then torsion)
How could I do this in FEAP? I am currently working on a new magneto-mechanical element
and I need to carry out first a mechanical loading and then a magnetic loading each time at different
nodes.
Thank you in advance.
Kostas