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[Václav Šmilauer <eudoxos@xxxxxxxx>]

> Is this correct (regarding Dem3DofGeom_SphereSphere):
> 1. Initial orientations ori1 and ori2, are never modified.
They are modified when there is plastic slip -- see below.
> 2. Consequence : the shear disp given by displacementT() is always the 
> total displacement (plastic+elastic), based on initials ori1 and ori2.
Therefore, displacementT is always the elastic displacement.
> 3. After slipToDisplacementTMax(), the total displacement is reduced in 
> order to be the elastic part only?
Correct, but it is done by changing the initial orientations so that |
displacementT|<=theValueYouGive, without changing the orientation.

HTH, Vaclav