chiara modenese a écrit :
Actually if one wants to test the shear direction it is not as
straightforward as for the normal part. I managed to do that having
viscous damping at contacts (so that, in a sphere-sphere interaction,
you first apply a force in the normal direction till you reach
equilibrium having a damped solution
Did you apply gravity ? Or any, say vertical, force (if normal of the
interaction is vertical) applied by hand or with ForceEngine maybe. That
is what I would advice you in order to have a normal force non equal to
zero at the interaction. But I do not see the link with damping ?
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