Hello,
The results depend on the mesh, if the mesh isn't well adapted. For example, for this kind of simulation, you need at least 4 elements C3D8R (Hexa) im the thickness. If you use tetrahedral elements (C3D10), 2 may be sufficient.
In this case, you can compare the simulated deflection or...
Hello,
It's the procedure. You must defined elastic (Young's modulus and Poisson's coeficient) and plastic behavior (give the curves stress vs plastic strain).